1
                                                                    EXHIBIT 99.1


                      AMERICAN PLUMBING & MECHANICAL, INC.

                              LETTER OF TRANSMITTAL
                          FOR TENDER OF ALL OUTSTANDING
              11 5/8% SENIOR SUBORDINATED NOTES DUE 2008, SERIES A
                                 IN EXCHANGE FOR
              11 5/8% SENIOR SUBORDINATED NOTES DUE 2008, SERIES B
           THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933

                PURSUANT TO THE PROSPECTUS DATED __________, 1999

THE EXCHANGE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 5:00 P.M., NEW YORK CITY
TIME, ON __________, 1999, UNLESS THE EXCHANGE OFFER IS EXTENDED.

         TO: STATE STREET BANK AND TRUST COMPANY (THE "EXCHANGE AGENT")



     By Mail or Hand Delivery:               By Registered or Certified Mail:
State Street Bank and Trust Company        State Street Bank and Trust Company
Corporate Trust Window, Fifth Floor             Corporate Trust Department
       2 Avenue De Lafayette                           P.O. Box 778
 Boston, Massachusetts 02111-1724            Boston, Massachusetts 02102-0778
     Attention: Kellie Mullen                    Attention: Kellie Mullen

                           By Facsimile Transmission:
                        (for Eligible Institutions only)
                       State Street Bank and Trust Company
                                 (617) 664-5395
                            Attention: Kellie Mullen

                  For Information or Confirmation by Telephone:
                                 (617) 664-5587


         DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OR TRANSMISSION TO A
FACSIMILE NUMBER OTHER THAN AS SET FORTH ABOVE DOES NOT CONSTITUTE A VALID
DELIVERY. THE METHOD OF DELIVERY OF ALL DOCUMENTS, INCLUDING CERTIFICATES, IS AT
THE RISK OF THE HOLDER. IF DELIVERY IS BY MAIL, REGISTERED MAIL WITH RETURN
RECEIPT REQUESTED, PROPERLY INSURED, IS RECOMMENDED. THE INSTRUCTIONS
ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ CAREFULLY BEFORE THIS
LETTER OF TRANSMITTAL IS COMPLETED.

         The undersigned acknowledges that he or she has received the
Prospectus, dated __________, 1999 (the "Prospectus") of American Plumbing &
Mechanical, Inc., a Delaware Corporation (the "Company") and this Letter of
Transmittal and the instructions hereto (the "Letter of Transmittal"), which
together constitute the Company's offer (the "Exchange Offer") to exchange
$1,000 principal amount of its 115/8% Senior Subordinated Notes due 2008, Series
B (the "Exchange Notes") that have been registered under the Securities Act of
1933, as amended (the "Securities Act"), pursuant to a Registration Statement of
which the Prospectus is a part, for each $1,000 principal amount of its
outstanding 115/8% Senior Subordinated Notes due 2008, Series A (the "Old
Notes"), of which $125,000,000 aggregate principal amount is outstanding, upon
the terms and subject to the conditions set forth in the Prospectus. The term
"Expiration Date" shall mean 5:00 p.m., New York City time, on __________, 1999,
unless the Company, in its sole discretion, extends the Exchange Offer, in which
case the term shall mean the latest date and time to which the Exchange Offer is
extended by the Company.

   2

         This Letter of Transmittal is to be used either if (i) certificates
representing Old Notes are to be physically delivered to the Exchange Agent
herewith by Holders, (ii) tender of Old Notes is to be made by book-entry
transfer to an account maintained by the Exchange Agent at The Depository Trust
Company ("DTC"), pursuant to the procedures set forth in "The Exchange
Offer--Procedures for Tendering" in the Prospectus by any financial institution
that is a participant in DTC and whose name appears on a security position
listing as the owner of Old Notes or (iii) tender of Old Notes is to be made
according to the guaranteed delivery procedures set forth in the Prospectus
under "The Exchange Offer--Guaranteed Delivery Procedures." Delivery of this
Letter of Transmittal and any other required documents must be made to the
Exchange Agent. DELIVERY OF DOCUMENTS TO DTC DOES NOT CONSTITUTE DELIVERY TO THE
EXCHANGE AGENT.

         The term "Holder" as used herein means any person in whose name Old
Notes are registered on the books of the Company or any other person who has
obtained a properly completed bond power from the registered holder.

         All Holders of Old Notes who wish to tender their Old Notes must, prior
to the Expiration Date: (1) complete, sign, and deliver this Letter of
Transmittal, or a facsimile thereof, to the Exchange Agent, in person or to the
address set forth above; and (2) tender (and not withdraw) his or her Old Notes
or, if a tender of Old Notes is to be made by book-entry transfer to the account
maintained by the Exchange Agent at DTC, confirm such book-entry transfer (a
"Book-Entry Confirmation"), in each case in accordance with the procedures for
tendering described in the instructions to this Letter of Transmittal. Holders
of Old Notes whose certificates are not immediately available, or who are unable
to deliver their certificates or Book-Entry Confirmation and all other documents
required by this Letter of Transmittal to be delivered to the Exchange Agent on
or prior to the Expiration Date, must tender their Old Notes according to the
guaranteed delivery procedures set forth under the caption "The Exchange Offer
- -- Guaranteed Delivery Procedures" in the Prospectus. (See Instruction 2.)

         Upon the terms and subject to the conditions of the Exchange Offer, the
acceptance for exchange of the Old Notes validly tendered and not withdrawn and
the issuance of the Exchange Notes will be made promptly following the
Expiration Date. For the purposes of the Exchange Offer, the Company shall be
deemed to have accepted for exchange validly tendered Old Notes when, as and if
the Company has given written notice thereof to the Exchange Agent.

         The undersigned has completed, executed and delivered this Letter of
Transmittal to indicate the action the undersigned desires to take with respect
to the Exchange Offer. Holders who wish to tender their Old Notes must complete
this Letter of Transmittal in its entirety.

         PLEASE READ THE ENTIRE LETTER OF TRANSMITTAL AND THE PROSPECTUS
CAREFULLY BEFORE CHECKING ANY BOX BELOW. THE INSTRUCTIONS INCLUDED IN THIS
LETTER OF TRANSMITTAL MUST BE FOLLOWED. QUESTIONS AND REQUESTS FOR ASSISTANCE OR
FOR ADDITIONAL COPIES OF THE PROSPECTUS, THIS LETTER OF TRANSMITTAL AND THE
NOTICE OF GUARANTEED DELIVERY MAY BE DIRECTED TO THE EXCHANGE AGENT. SEE
INSTRUCTION 12 HEREIN.

         HOLDERS WHO WISH TO ACCEPT THE EXCHANGE OFFER AND TENDER THEIR OLD
NOTES MUST COMPLETE THIS LETTER OF TRANSMITTAL IN ITS ENTIRETY AND COMPLY WITH
ALL OF ITS TERMS.


                                       -2-

   3



         List below the Old Notes to which this Letter of Transmittal relates.
If the space provided below is inadequate, the Certificate Numbers and Principal
Amounts should be listed on a separate signed schedule, attached hereto. The
minimum permitted tender is $1,000 in principal amount of 115/8% Senior
Subordinated Notes due 2008, Series A. All other tenders must be in integral
multiples of $1,000.


       DESCRIPTION OF 115/8% SENIOR SUBORDINATED NOTES DUE 2008, SERIES A

BOX I



        Name(s) and Address(es) of Registered Holder(s) *
                    (Please fill in, if blank)
- ------------------------------------------------------------------ ---------------------------------------------------
                                                                              (A)                        (B)

                                                                                                 Aggregate Principal
                                                                                                   Amount Tendered
                                                                     Certificate Number(s)*     (if less than all)**
- ------------------------------------------------------------------ ---------------------------------------------------

                                                                                         
                                                                   --------------------------  -----------------------

                                                                   --------------------------  -----------------------

                                                                   --------------------------  -----------------------

                                                                   --------------------------  -----------------------
                                                                   Total Principal Amount
                                                                   of Old Notes Tendered
                                                                   ==========================  =======================


- ----------------
*        Need not be completed by book-entry holders.

**       Need not be completed by Holders who wish to tender with respect to all
         Old Notes listed.



                                       -3-

   4



               PLEASE READ CAREFULLY THE ACCOMPANYING INSTRUCTIONS

BOX II
================================================================================
                        SPECIAL REGISTRATION INSTRUCTIONS
                        (SEE INSTRUCTIONS 4, 5, 6 AND 7)

     To be completed ONLY if certificates for Old Notes in a principal amount
not tendered, or Exchange Notes issued in exchange for Old Notes accepted for
exchange, are to be issued in the name of someone other than the undersigned.

Issue certificate(s) to:

Name
     ---------------------------------------------------------------------------
                                 (PLEASE PRINT)

- --------------------------------------------------------------------------------
                                 (PLEASE PRINT)

Address
       -------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                              (INCLUDING ZIP CODE)

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)
================================================================================


BOX III
================================================================================
                          SPECIAL DELIVERY INSTRUCTIONS
                        (SEE INSTRUCTIONS 4, 5, 6 AND 7)

     To be completed ONLY if certificates for Old Notes in a principal amount
not tendered, or Exchange Notes issued in exchange for Old Notes accepted for
exchange, are to be delivered to someone other than the undersigned.

Deliver certificate(s) to:

Name
     ---------------------------------------------------------------------------
                                 (PLEASE PRINT)

- --------------------------------------------------------------------------------
                                 (PLEASE PRINT)

Address
       -------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                              (INCLUDING ZIP CODE)

- --------------------------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)
================================================================================


         IMPORTANT: THIS LETTER OF TRANSMITTAL OR A FACSIMILE HEREOF (TOGETHER
WITH THE CERTIFICATE(S) FOR OLD NOTES OR A CONFIRMATION OF BOOK-ENTRY TRANSFER
OF SUCH OLD NOTES AND ALL OTHER REQUIRED DOCUMENTS) OR, IF GUARANTEED DELIVERY
PROCEDURES ARE TO BE COMPLIED WITH, A NOTICE OF GUARANTEED DELIVERY, MUST BE
RECEIVED BY THE EXCHANGE AGENT PRIOR TO THE EXPIRATION DATE.

[ ]      CHECK HERE IF OLD NOTES ARE BEING DELIVERED BY DTC TO AN ACCOUNT
         MAINTAINED BY THE EXCHANGE AGENT WITH DTC AND COMPLETE THE FOLLOWING:

         Name of Tendering Institution
                                       -----------------------------------

         [ ]The Depository Trust Company

         Account Number
                        --------------------------------------------------

         Transaction Code Number
                                 -----------------------------------------

         Holders whose Old Notes are not immediately available or who cannot
deliver their Old Notes and all other documents required hereby to the Exchange
Agent on or prior to the Expiration Date may tender their Old Notes according to
the guaranteed delivery procedures set forth in the Prospectus under the caption
"The Exchange Offer--Guaranteed Delivery Procedures." (See Instruction 2.)


                                       -4-

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[ ]      CHECK HERE IF OLD NOTES ARE BEING DELIVERED PURSUANT TO A NOTICE OF
         GUARANTEED DELIVERY PREVIOUSLY SENT TO THE EXCHANGE AGENT AND COMPLETE
         THE FOLLOWING:

         Name(s) of tendering Holder(s)
                                       -----------------------------------------
         Date of Execution of Notice of Guaranteed Delivery
                                                           ---------------------
         Name of Institution which Guaranteed Delivery
                                                      --------------------------
         Transaction Code Number
                                ------------------------------------------------

[ ]      CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL
         COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS
         THERETO.

         Name:
              ------------------------------------------------------------------
         Address:
                 ---------------------------------------------------------------

         If the undersigned is not a broker-dealer, the undersigned represents
that it is not engaged in, and does not intend to engage in, a distribution of
Exchange Notes. If the undesigned is a broker-dealer that will receive Exchange
Notes for its own account in exchange for Old Notes that were acquired as a
result of market-making activities or other trading activities, it acknowledges
that it will deliver a prospectus in connection with any resale of such Exchange
Notes; however, by so acknowledging and by delivering a prospectus, the
undersigned will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.


                     NOTE: SIGNATURES MUST BE PROVIDED BELOW
                 PLEASE READ ACCOMPANYING INSTRUCTIONS CAREFULLY

Ladies and Gentlemen:

         Subject to the terms and conditions of the Exchange Offer, the
undersigned hereby tenders to American Plumbing & Mechanical, Inc. (the
"Company") the principal amount of Old Notes indicated above.

         Subject to and effective upon the acceptance for exchange of the
principal amount of Old Notes tendered hereby in accordance with this Letter of
Transmittal, the undersigned sells, assigns and transfers to, or upon the order
of, the Company all right, title and interest in and to the Old Notes tendered
hereby. The undersigned hereby irrevocably constitutes and appoints the Exchange
Agent as its agent and attorney-in-fact (with full knowledge that the Exchange
Agent also acts as the agent of the Company and as Trustee and Registrar under
the Indenture for the Old Notes and the Exchange Notes) with respect to the
tendered Old Notes with full power of substitution (such power of attorney being
deemed an irrevocable power coupled with an interest), subject only to the right
of withdrawal described in the Prospectus, to (i) deliver certificates for such
Old Notes to the Company or transfer ownership of such Old Notes on the account
books maintained by DTC, together, in either such case, with all accompanying
evidences of transfer and authenticity to, or upon the order of, the Company and
(ii) present such Old Notes for transfer on the books of the Company and receive
all benefits and otherwise exercise all rights of beneficial ownership of such
Old Notes, all in accordance with the terms of the Exchange Offer.

         The undersigned acknowledges that the Exchange Offer is being made in
reliance upon interpretative advice given by the staff of the Securities and
Exchange Commission to third parties in connection with transactions similar to
the Exchange Offer, so that the Exchange Notes issued pursuant to the Exchange
Offer in exchange for the Old Notes may be offered for resale, resold and
otherwise transferred by holders thereof (other than a broker-dealer who
purchased

                                       -5-

   6



such Old Notes directly from the Company for resale pursuant to Rule 144A or any
other available exemption under the Securities Act or a person that is an
"affiliate" of the Company or any Guarantor within the meaning of Rule 405 under
the Securities Act) without compliance with the registration and prospectus
delivery provisions of the Securities Act, provided that such Exchange Notes are
acquired in the ordinary course of such holders' business and such holders have
no arrangement with any person to participate in the distribution of such
Exchange Notes.

         The undersigned agrees that acceptance of any tendered Old Notes by the
Company and the issuance of Exchange Notes in exchange therefor shall constitute
performance in full by the Company of its obligations under the registration
rights agreement, (as referred to in the Prospectus) and that, upon the issuance
of the Exchange Notes, the Company will have no further obligations or
liabilities thereunder (except in certain limited circumstances).

         The undersigned represents and warrants that (i) the Exchange Notes
acquired pursuant to the Exchange Offer are being acquired in the ordinary
course of business of the person receiving Exchange Notes (which shall be the
undersigned unless otherwise indicated in the box entitled "Special Delivery
Instructions" above) (the "Recipient"), (ii) neither the undersigned nor the
Recipient (if different) is engaged in, intends to engage in or has any
arrangement or understanding with any person to participate in the distribution
of such Exchange Notes, and (iii) neither the undersigned nor the Recipient (if
different) is an "affiliate" of the Company or any Guarantor as defined in Rule
405 under the Securities Act. If the undersigned is not a broker-dealer, the
undersigned further represents that it is not engaged in, and does not intend to
engage in, a distribution of the Exchange Notes. If the undersigned is a
broker-dealer, the undersigned further (x) represents that it acquired Old Notes
for the undersigned's own account as a result of market-making activities or
other trading activities, (y) represents that it has not entered into any
arrangement or understanding with the Company or any "affiliate" of the Company
(within the meaning of Rule 405 under the Securities Act) to distribute the
Exchange Notes to be received in the Exchange Offer and (z) acknowledges that it
will deliver a prospectus meeting the requirements of the Securities Act (for
which purposes delivery of the Prospectus, as the same may be hereafter
supplemented or amended, shall be sufficient) in connection with any resale of
Exchange Notes received in the Exchange Offer. Such a broker-dealer will not be
deemed, solely by reason of such acknowledgment and prospectus delivery, to
admit that it is an "underwriter" within the meaning of the Securities Act.

         The undersigned understands and agrees that the Company reserves the
right not to accept tendered Old Notes from any tendering holder if the Company
determines, in its sole and absolute discretion, that such acceptance could
result in a violation of applicable securities laws.

         The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender, exchange, assign and transfer the Old Notes
tendered hereby and to acquire Exchange Notes issuable upon the exchange of such
tendered Old Notes, and that, when the same are accepted for exchange, the
Company will acquire good and unencumbered title thereto, free and clear of all
liens, restrictions, charges and encumbrances and not subject to any adverse
claim. The undersigned also warrants that it will, upon request, execute and
deliver any additional documents deemed to be necessary or desirable by the
Exchange Agent or the Company in order to complete the exchange, assignment and
transfer of tendered Old Notes or transfer of ownership of such Old Notes on the
account books maintained by a book-entry transfer facility.

         The undersigned understands and acknowledges that the Company reserves
the right in its sole discretion to purchase or make offers for any Old Notes
that remain outstanding subsequent to the Expiration Date or, as set forth in
the Prospectus under the caption "The Exchange Offer--Procedures for Tendering,"
to terminate the Exchange Offer and, to the extent permitted by applicable law,
purchase Old Notes in the open market, in privately negotiated transactions or
otherwise. The terms of any such purchases or offers could differ from the terms
of the Exchange Offer.

         The undersigned understands that the Company may accept the
undersigned's tender by delivering written notice of acceptance to the Exchange
Agent, at which time the undersigned's right to withdraw such tender will
terminate. For purposes of the Exchange Offer, the Company shall be deemed to
have accepted validly tendered Old Notes when, as and if the Company has given
oral (which shall be confirmed in writing) or written notice thereof to the
Exchange Agent.

                                       -6-

   7




         The undersigned understands that the first interest payment following
the Expiration Date will include unpaid interest on the Old Notes accrued
through the date of issuance of the Exchange Notes.

         The undersigned understands that tenders of Old Notes pursuant to the
procedures described under the caption "The Exchange Offer--Procedures for
Tendering" in the Prospectus and in the instructions hereto will constitute a
binding agreement between the undersigned and the Company upon the terms and
subject to the conditions of the Exchange Offer.

         The undersigned acknowledges that the Exchange Offer is subject to the
more detailed terms set forth in the Prospectus and, in case of any conflict
between the terms of the Prospectus and this Letter of Transmittal, the
Prospectus shall prevail.

         If any tendered Old Notes are not accepted for exchange pursuant to the
Exchange Offer for any reason, certificates for any such unaccepted Old Notes
will be returned (except as noted below with respect to tenders through DTC), at
the Company's cost and expense, to the undersigned at the address shown below or
at a different address as may be indicated herein under "Special Delivery
Instructions" as promptly as practicable after the Expiration Date.

         All authority conferred or agreed to be conferred by this Letter of
Transmittal shall survive the death, incapacity or dissolution of the
undersigned, and every obligation of the undersigned under this Letter of
Transmittal shall be binding upon the undersigned's heirs, personal
representatives, successors and assigns. This tender may be withdrawn only in
accordance with the procedures set forth in this Letter of Transmittal.

         By acceptance of the Exchange Offer, each broker-dealer that receives
Exchange Notes pursuant to the Exchange Offer hereby acknowledges and agrees
that upon the receipt of notice by the Company of the happening of any event
which makes any statement in the Prospectus untrue in any material respect or
which requires the making of any changes in the Prospectus in order to make the
statements therein not misleading (which notice the Company agrees to deliver
promptly to such broker-dealer), such broker-dealer will suspend use of the
Prospectus until the Company has amended or supplemented the Prospectus to
correct such misstatement or omission and has furnished copies of the amended or
supplemented prospectus to such broker-dealer.

         Unless otherwise indicated under "Special Registration Instructions,"
please issue the certificates representing the Exchange Notes issued in exchange
for the Old Notes accepted for exchange and return any certificates for Old
Notes not tendered or not exchanged, in the name(s) of the undersigned (or, in
either such event in the case of Old Notes tendered by DTC, by credit to the
account at DTC). Similarly, unless otherwise indicated under "Special Delivery
Instructions," please send the certificates representing the Exchange Notes
issued in exchange for the Old Notes accepted for exchange and any certificates
for Old Notes not tendered or not exchanged (and accompanying documents, as
appropriate) to the undersigned at the address shown below the undersigned's
signature(s), unless, in either event, tender is being made through DTC. In the
event that both "Special Registration Instructions" and "Special Delivery
Instructions" are completed, please issue the certificates representing the
Exchange Notes issued in exchange for the Old Notes accepted for exchange in the
name(s) of, and return any certificates for Old Notes not tendered or not
exchanged to, the person(s) so indicated. The undersigned understands that the
Company has no obligations pursuant to the "Special Registration Instructions"
or "Special Delivery Instructions" to transfer any Old Notes from the name of
the registered Holder(s) thereof if the Company does not accept for exchange any
of the Old Notes so tendered.

         Holders who wish to tender the Old Notes and (i) whose Old Notes are
not immediately available or (ii) who cannot deliver their Old Notes, this
Letter of Transmittal or any other documents required hereby to the Exchange
Agent prior to the Expiration Date, may tender their Old Notes according to the
guaranteed delivery procedures set forth in the Prospectus under the caption
"The Exchange Offer--Guaranteed Delivery Procedures." See Instruction 1
regarding the completion of the Letter of Transmittal.

                         PLEASE SIGN HERE WHETHER OR NOT
                 OLD NOTES ARE BEING PHYSICALLY TENDERED HEREBY
                     AND WHETHER OR NOT TENDER IS TO BE MADE

                                       -7-

   8


                 PURSUANT TO THE GUARANTEED DELIVERY PROCEDURES

         This Letter of Transmittal must be signed by the registered holder(s)
as their name(s) appear on the Old Notes or, if tendered by a participant in
DTC, exactly as such participant's name appears on a security listing as the
owner of Old Notes, or by person(s) authorized to become registered holder(s) by
a properly completed bond power from the registered holder(s), a copy of which
must be transmitted with this Letter of Transmittal. If Old Notes to which this
Letter of Transmittal relate are held of record by two or more joint holders,
then all such holders must sign this Letter of Transmittal. If signature is by a
trustee, executor, administrator, guardian, attorney-in-fact, officer of a
corporation or other person acting in a fiduciary or representative capacity,
then such person must (i) set forth his or her full title below and (ii) unless
waived by the Company, submit evidence satisfactory to the Company of such
person's authority so to act. (See Instruction 4.)

X
- ----------------------------------------       --------------------------------
                                               Date
X
- ----------------------------------------       --------------------------------
                                               Date
   Signature(s) of Holder(s) or
   Authorized Signatory

Name(s):                            Address:
        ------------------------            -----------------------------------

        ------------------------            -----------------------------------
             (Please Print)                        (including Zip Code)

Capacity:                           Area Code and Telephone Number:
          ----------------------                                   ------------
Social Security No.:
                    ------------

                   PLEASE COMPLETE SUBSTITUTE FORM W-9 HEREIN


                                       -8-

   9



BOX IV
================================================================================
                     SIGNATURE GUARANTEE (SEE INSTRUCTION 1)
        CERTAIN SIGNATURES MUST BE GUARANTEED BY AN ELIGIBLE INSTITUTION


- --------------------------------------------------------------------------------
             (Name of Eligible Institution Guaranteeing Signatures)


- --------------------------------------------------------------------------------
               (Address (including zip code) and Telephone Number
                         (including area code) of Firm)


- --------------------------------------------------------------------------------
                             (Authorized Signature)


- --------------------------------------------------------------------------------
                                 (Printed Name)


- --------------------------------------------------------------------------------
                                     (Title)

Date:
     ---------------------
================================================================================

                                  INSTRUCTIONS

         FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER


         1. Guarantee of Signatures. Signatures on this Letter of Transmittal
need not be guaranteed if (a) this Letter of Transmittal is signed by the
registered holder(s) of the Old Notes tendered herewith and such holder(s) have
not completed the box set forth herein entitled "Special Registration
Instructions" or the box entitled "Special Delivery Instructions" or (b) such
Old Notes are tendered for the account of an Eligible Institution. (See
Instruction 6.) Otherwise, all signatures on this Letter of Transmittal or a
notice of withdrawal, as the case may be, must be guaranteed by a member firm of
a registered national securities exchange or of the National Association of
Securities Dealers, Inc. or a commercial bank or trust company having an office
or correspondent in the United States (an "Eligible Institution"). All
signatures on bond powers and endorsements on certificates must also be
guaranteed by an Eligible Institution.

         2. Delivery of this Letter of Transmittal and Old Notes. Certificates
for all physically delivered Old Notes or confirmation of any book-entry
transfer to the Exchange Agent at DTC of Old Notes tendered by book-entry
transfer, as well as, in each case (including cases where tender is affected by
book-entry transfer), a properly completed and duly executed copy of this Letter
of Transmittal or facsimile hereof and any other documents required by this
Letter of Transmittal must be received by the Exchange Agent at its address set
forth herein prior to 5:00 p.m., New York City time, on the Expiration Date.

         The method of delivery of the tendered Old Notes, this Letter of
Transmittal and all other required documents to the Exchange Agent is at the
election and risk of the Holder and the delivery will be deemed made only when
actually received by the Exchange Agent. If Old Notes are sent by mail,
registered mail with return receipt requested, properly insured, is recommended.
In all cases, sufficient time should be allowed to ensure timely delivery. No
Letter of Transmittal or Old Notes should be sent to the Company.

         The Exchange Agent will make a request to establish an account with
respect to the Old Notes at the Depositary for purposes of the Exchange Offer
within two business days after receipt of this Prospectus, and any financial
institution that is a participant in the Depositary may make book-entry delivery
of Old Notes by causing the Depositary to transfer

                                       -9-

   10



such Old Notes into the Exchange Agent's account at the Depositary in accordance
with the Depositary's procedures for transfer. However, although delivery of Old
Notes may be effected through book-entry transfer at the Depositary, the Letter
of Transmittal, with any required signature guarantees or an Agent's Message (as
defined below) in connection with a book-entry transfer and any other required
documents, must, in any case, be transmitted to and received by the Exchange
Agent at the address specified on the cover page of the Letter of Transmittal on
or prior to the Expiration Date or the guaranteed delivery procedures described
below must be complied with.

         A Holder may tender Old Notes that are held through the Depositary by
transmitting its acceptance through the Depositary's Automatic Tender Offer
Program, for which the transaction will be eligible, and the Depositary will
then edit and verify the acceptance and send an Agent's Message to the Exchange
Agent for its acceptance. The term "Agent's Message" means a message transmitted
by the Depositary to, and received by, the Exchange Agent and forming part of
the Book-Entry Confirmation, which states that the Depositary has received an
express acknowledgment from each participant in the Depositary tendering the Old
Notes and that such participant has received the Letter of Transmittal and
agrees to be bound by the terms of the Letter of Transmittal and the Company may
enforce such agreement against such participant.

         Holders who wish to tender their Old Notes and (i) whose Old Notes are
not immediately available, or (ii) who cannot deliver their Old Notes, this
Letter of Transmittal or any other documents required hereby to the Exchange
Agent prior to the Expiration Date or comply with book-entry transfer procedures
on a timely basis must tender their Old Notes according to the guaranteed
delivery procedures set forth in the Prospectus. See "Exchange Offer
- --Guaranteed Delivery Procedures." Pursuant to such procedure: (i) such tender
must be made by or through an Eligible Institution; (ii) prior to the Expiration
Date, the Exchange Agent must have received from the Eligible Institution a
properly completed and duly executed Notice of Guaranteed Delivery (by facsimile
transmission, overnight courier, mail or hand delivery) setting forth the name
and address of the Holder of the Old Notes, the certificate number or numbers of
such Old Notes and the principal amount of Old Notes tendered, stating that the
tender is being made thereby and guaranteeing that, within three New York Stock
Exchange trading days after the Expiration Date, this Letter of Transmittal (or
facsimile hereof) together with the certificate(s) representing the Old Notes
and any other required documents will be deposited by the Eligible Institution
with the Exchange Agent; and (iii) such properly completed and executed Letter
of Transmittal (or facsimile hereof), as well as all other documents required by
this Letter of Transmittal and the certificate(s) representing all tendered Old
Notes in proper form for transfer (or a confirmation of book-entry transfer of
such Old Notes into the Exchange Agent's account at DTC), must be received by
the Exchange Agent within three New York Stock Exchange trading days after the
Expiration Date, all in the manner provided in the Prospectus under the caption
"The Exchange Offer--Guaranteed Delivery Procedures." Any Holder who wishes to
tender his Old Notes pursuant to the guaranteed delivery procedures described
above must ensure that the Exchange Agent receives the Notice of Guaranteed
Delivery prior to 5:00 p.m., New York City time, on the Expiration Date. Upon
request to the Exchange Agent, a Notice of Guaranteed Delivery will be sent to
Holders who wish to tender their Old Notes according to the guaranteed delivery
procedures set forth above.

         All questions as to the validity, form, eligibility (including time of
receipt), acceptance of tendered Old Notes, and withdrawal of tendered Old Notes
will be determined by the Company in its sole discretion, which determination
will be final and binding. All tendering holders, by execution of this Letter of
Transmittal (or facsimile thereof), shall waive any right to receive notice of
the acceptance of the Old Notes for exchange. The Company reserves the absolute
right to reject any and all Old Notes not properly tendered or any Old Notes the
Company's acceptance of which would, in the opinion of counsel for the Company,
be unlawful. The Company also reserves the right to waive any irregularities or
conditions of tender as to particular Old Notes. The Company's interpretation of
the terms and conditions of the Exchange Offer (including the instructions in
this Letter of Transmittal) shall be final and binding on all parties. Unless
waived, any defects or irregularities in connection with tenders of Old Notes
must be cured within such time as the Company shall determine. Neither the
Company, the Exchange Agent nor any other person shall be under any duty to give
notification of defects or irregularities with respect to tenders of Old Notes,
nor shall any of them incur any liability for failure to give such notification.
Tenders of Old Notes will not be deemed to have been made until such defects or
irregularities have been cured to the Company's satisfaction or waived. Any Old
Notes received by the Exchange Agent that are not properly tendered and as to
which the defects or irregularities have not been cured or waived will be
returned by the Exchange Agent to the tendering Holders pursuant to the
Company's determination, unless otherwise provided in this Letter of Transmittal
as soon as practicable following the Expiration Date. The Exchange Agent has no
fiduciary duties to the Holders with respect to the Exchange Offer and is acting
solely on the basis of directions of the Company.


                                      -10-

   11




         3. Inadequate Space. If the space provided is inadequate, the
certificate numbers and/or the number of Old Notes should be listed on a
separate signed schedule attached hereto.

         4. Tender by Holder. Only a Holder of Old Notes may tender such Old
Notes in the Exchange Offer. Any beneficial owner of Old Notes who is not the
registered Holder and who wishes to tender should arrange with such registered
holder to execute and deliver this Letter of Transmittal on such beneficial
owner's behalf or must, prior to completing and executing this Letter of
Transmittal and delivering his Old Notes, either make appropriate arrangements
to register ownership of the Old Notes in such beneficial owner's name or obtain
a properly completed bond power from the registered holder or properly endorsed
certificates representing such Old Notes.

         5. Partial Tenders; Withdrawals. Tenders of Old Notes will be accepted
only in integral multiples of $1,000. If less than the entire principal amount
of any Old Notes is tendered, the tendering Holder should fill in the principal
amount tendered in the third column of the box entitled "Description of 115/8%
Senior Subordinated Notes due 2008, Series A" above. The entire principal amount
of any Old Notes delivered to the Exchange Agent will be deemed to have been
tendered unless otherwise indicated. If the entire principal amount of all Old
Notes is not tendered, then Old Notes for the principal amount of Old Notes not
tendered and a certificate or certificates representing Exchange Notes issued in
exchange for any Old Notes accepted will be sent to the Holder at his or her
registered address, unless a different address is provided in the "Special
Delivery Instructions" box above on this Letter of Transmittal or unless tender
is made through DTC, promptly after the Old Notes are accepted for exchange.

         Except as otherwise provided herein, tenders of Old Notes may be
withdrawn at any time prior to 5:00 p.m., New York City time, on the Expiration
Date. To withdraw a tender of Old Notes in the Exchange Offer, a written or
facsimile transmission notice of withdrawal must be received by the Exchange
Agent at its address set forth herein prior to 5:00 p.m., New York City time, on
the Expiration Date. Any such notice of withdrawal must (i) specify the name of
the person having deposited the Old Notes to be withdrawn (the "Depositor"),
(ii) identify the Old Notes to be withdrawn (including the certificate number or
numbers and principal amount of such Old Notes, or, in the case of Old Notes
transferred by book-entry transfer the name and number of the account at DTC to
be credited), (iii) be signed by the Depositor in the same manner as the
original signature on the Letter of Transmittal by which such Old Notes were
tendered (including any required signature guarantees) or be accompanied by
documents of transfer sufficient to have the Registrar with respect to the Old
Notes register the transfer of such Old Notes into the name of the person
withdrawing the tender and (iv) specify the name in which any such Old Notes are
to be registered, if different from that of the Depositor. All questions as to
the validity, form and eligibility (including time of receipt) of such notices
will be determined by the Company, whose determination shall be final and
binding on all parties. Any Old Notes so withdrawn will be deemed not to have
been validly tendered for purposes of the Exchange Offer and no Exchange Notes
will be issued with respect thereto unless the Old Notes so withdrawn are
validly retendered. Any Old Notes which have been tendered but which are not
accepted for exchange by the Company will be returned to the Holder thereof
without cost to such Holder as soon as practicable after withdrawal, rejection
of tender or termination of the Exchange Offer. Properly withdrawn Old Notes may
be retendered by following one of the procedures described in the Prospectus
under "The Exchange Offer--Procedures for Tendering" at any time prior to the
Expiration Date.

         6. Signatures on the Letter of Transmittal; Bond Powers and
Endorsements. If this Letter of Transmittal (or facsimile hereof) is signed by
the registered holder(s) of the Old Notes tendered hereby, the signature must
correspond with the name(s) as written on the face of the Old Note without
alteration, enlargement or any change whatsoever.

         If any of the Old Notes tendered hereby are owned of record by two or
more joint owners, all such owners must sign this Letter of Transmittal.

         If a number of Old Notes registered in different names are tendered, it
will be necessary to complete, sign and submit as many copies of this Letter of
Transmittal as there are different registrations of Old Notes.

         If this Letter of Transmittal (or facsimile hereof) is signed by the
registered Holder or Holders (which term, for the Purposes described herein,
shall include a book-entry transfer facility whose name appears on a security
listing as the owner of the Old Notes) of Old Notes tendered and the certificate
or certificates for Exchange Notes issued in exchange


                                      -11-

   12



therefor is to be issued (or any untendered principal amount of Old Notes to be
reissued) to the registered Holder, then such Holder need not and should not
endorse any tendered Old Notes, nor provide a separate bond power. In any other
case, such Holder must either properly endorse the Old Notes tendered or
transmit a properly completed separate bond power with this Letter of
Transmittal with the signatures on the endorsement or bond power guaranteed by
an Eligible Institution.

         If this Letter of Transmittal (or facsimile hereof) is signed by a
person other than the registered Holder or Holders of any Old Notes listed, such
Old Notes must be endorsed or accompanied by appropriate bond powers in each
case signed as the name of the registered Holder or Holders appears on the Old
Notes.

         If this Letter of Transmittal (or facsimile hereof) or any Old Notes or
bond powers are signed by trustees, executors, administrators, guardians,
attorneys-in-fact, or officers of corporations or others acting in a fiduciary
or representative capacity, such persons should so indicate when signing, and
unless waived by the Company, evidence satisfactory to the Company of their
authority so to act must be submitted with this Letter of Transmittal.

         Endorsements on Old Notes or signatures on bond powers required by this
Instruction 6 must be guaranteed by an Eligible Institution.

         7. Special Registration and Delivery Instructions. Tendering Holders
should indicate, in the applicable box or boxes, the name and address to which
Exchange Notes or substitute Old Notes for principal amounts not tendered or not
accepted for exchange are to be issued or sent, if different from the name and
address of the person signing this Letter of Transmittal. In the case of
issuance in a different name, the taxpayer identification or social security
number of the person named must also be indicated.

         8. Backup Federal Income Tax Withholding and Substitute Form W-9. Under
the federal income tax laws, payments that may be made by the Company on account
of Exchange Notes issued pursuant to the Exchange Offer may be subject to backup
withholding at the rate of 31%. In order to avoid such backup withholding, each
tendering holder should complete and sign the Substitute Form W-9 included in
this Letter of Transmittal and either (a) provide the correct taxpayer
identification number ("TIN") and certify, under penalties of perjury, that the
TIN provided is correct and that (i) the holder has not been notified by the
Internal Revenue Service (the "IRS") that the holder is subject to backup
withholding as a result of failure to report all interest or dividends or (ii)
the IRS has notified the holder that the holder is no longer subject to backup
withholding; or (b) provide an adequate basis for exemption. If the tendering
holder has not been issued a TIN and has applied for one, or intends to apply
for one in the near future, such holder should write "Applied For" in the space
provided for the TIN in Part I of the Substitute Form W-9, sign and date the
Substitute Form W-9 and sign the Certificate of Payee Awaiting Taxpayer
Identification Number. If "Applied For" is written in Part I, the Company (or
the Paying Agent under the indenture governing the Exchange Notes) shall retain
31% of payments made to the tendering holder during the sixty-day period
following the date of the Substitute Form W-9. If the Holder furnishes the
Exchange Agent or the Company with its TIN within sixty days after the date of
the Substitute Form W-9, the Company (or the Paying Agent) shall remit such
amounts retained during the sixty-day period to the Holder and no further
amounts shall be retained or withheld from payments made to the Holder
thereafter. If, however, the Holder has not provided the Exchange Agent or the
Company with its TIN within such sixty-day period, the Company (or the Paying
Agent) shall remit such previously retained amounts to the IRS as backup
withholding. In general, if a Holder is an individual, the TIN is the Social
Security number of such individual. If the Exchange Agent or the Company are not
provided with the correct TIN, the Holder may be subject to a $50 penalty
imposed by the IRS. Certain Holders (including, among others, certain
corporations and certain foreign individuals) are not subject to these backup
withholding and reporting requirements. In order for a foreign individual to
qualify as an exempt recipient, such Holder must submit a statement (generally,
IRS Form W-8), signed under penalties of perjury, attesting to that individual's
exempt status. Such statements can be obtained from the Exchange Agent. For
further information concerning backup withholding and instructions for
completing the Substitute Form W-9 (including how to obtain a taxpayer
identification number if you do not have one and how to complete the Substitute
Form W-9 if Old Notes are registered in more than one name), consult the
enclosed Guidelines for Certification of Taxpayer Identification Number on
Substitute Form W-9.

                                      -12-

   13




         Failure to complete the Substitute Form W-9 will not, by itself, cause
Old Notes to be deemed invalidly tendered, but may require the Company (or the
Paying Agent) to withhold 31% of the amount of any payments made on account of
the Exchange Notes. Backup withholding is not an additional federal income tax.
Rather, the federal income tax liability of a person subject to backup
withholding will be reduced by the amount of tax withheld. If backup withholding
results in an overpayment of taxes, a refund may be obtained from the IRS.

         9. Transfer Taxes. The Company will pay all transfer taxes, if any,
applicable to the exchange of Old Notes pursuant to the Exchange Offer. If,
however, certificates representing Exchange Notes or Old Notes for principal
amounts not tendered or accepted for exchange are to be delivered to, or are to
be registered in the name of, any person other than the registered holder of the
Old Notes tendered hereby, or if tendered Old Notes are registered in the name
of a person other than the person signing this Letter of Transmittal, or if a
transfer tax is imposed for any reason other than the exchange of Old Notes
pursuant to the Exchange Offer, then the amount of any such transfer taxes
(whether imposed on the registered holder or on any other persons) will be
payable by the tendering Holder. If satisfactory evidence of payment of such
taxes or exemption therefrom is not submitted with this Letter of Transmittal,
the amount of such transfer taxes will be billed directly to such tendering
Holder. See the Prospectus under "The Exchange Offer--Solicitation of Tenders;
Fees and Expenses."

         Except as provided in this Instruction 9, it will not be necessary for
transfer tax stamps to be affixed to the Old Notes listed in this Letter of
Transmittal.

         10. Waiver of Conditions. The Company reserves the right, in their sole
discretion, to amend, waive or modify specified conditions in the Exchange Offer
in the case of any Old Notes tendered.

         11. Mutilated, Lost, Stolen or Destroyed Old Notes. Any tendering
Holder whose Old Notes have been mutilated, lost, stolen or destroyed should
contact the Exchange Agent at the address indicated herein for further
instructions.

         12. Requests for Assistance or Additional Copies. Requests for
assistance and requests for additional copies of the Prospectus or this Letter
of Transmittal may be directed to the Exchange Agent at the address specified in
the Prospectus. Holder may also contact their broker, dealer, commercial bank,
trust company or other nominee for assistance concerning the Exchange Offer.

                                      -13-

   14



                          (DO NOT WRITE IN SPACE BELOW)



                                                                                  
         CERTIFICATE SURRENDERED                     OLD NOTES TENDERED                 OLD NOTES ACCEPTED

         -----------------------                     ------------------                 ------------------

         -----------------------                     ------------------                 ------------------


Date Received                                        Accepted by                        Checked by
              ------------------                                -------                           --------

Delivery Prepared by                                 Checked by                         Date
              ------------------                                -------                     --------------



                            IMPORTANT TAX INFORMATION

         Under federal income tax laws, a Holder whose tendered Old Notes are
accepted for payment is required to provide the Exchange Agent (as payer) with
such Holder's correct TIN on Substitute Form W-9 below or otherwise establish a
basis for exemption from backup withholding. If such Holder is an individual,
the TIN is his social security number. If the Exchange Agent is not provided
with the correct TIN, a $50 penalty may be imposed by the IRS, and payments made
pursuant to the Exchange Offer may be subject to backup withholding.

         Certain Holders (including, among others, certain corporations and
certain foreign persons) are not subject to these backup withholding and
reporting requirements. Exempt Holders should indicate their exempt status on
Substitute Form W-9. A foreign person may qualify as an exempt recipient by
submitting to the Exchange Agent a properly completed IRS Form W-8, signed under
penalties of perjury, attesting to that Holder's exempt status. A Form W-8 can
be obtained from the Exchange Agent. See the enclosed "Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9" for
additional instructions.

         If backup withholding applies, the Exchange Agent is required to
withhold 31% of any payments made to the Holder or other payee. Backup
withholding is not an additional federal income tax. Rather, the federal income
tax liability of persons subject to backup withholding will be reduced by the
amount of tax withheld. If withholding results in an overpayment of taxes, a
refund may be obtained from the IRS.

PURPOSE OF SUBSTITUTE FORM W-9

         To prevent backup withholding on payments made with respect to the
Exchange Offer, the Holder is required to provide the Exchange Agent with
either: (i) the Holder's correct TIN by completing the Substitute Form W-9
below, certifying that the TIN provided on Substitute Form W-9 is correct (or
that such Holder is awaiting a TIN) and that (A) the Holder has not been
notified by the IRS that the Holder is subject to backup withholding as a result
of failure to report all interest or dividends or (B) the IRS has notified the
Holder that the Holder is no longer subject to backup withholding or (ii) an
adequate basis for exemption.

WHAT NUMBER TO GIVE THE EXCHANGE AGENT

         The Holder is required to give the Exchange Agent the TIN (e.g., social
security number or employer identification number) of the registered Holder of
the Old Notes. If the Old Notes are held in more than one name or are held not
in the name of the actual owner, consult the enclosed "Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9" for
additional guidance on which number to report.



                                      -14-

   15




         CERTIFICATION OF PAYEE AWAITING TAXPAYER INDEMNIFICATION NUMBER

         I certify, under penalties of perjury, that a Taxpayer Identification
Number has not been issued to me, and that I mailed or delivered an application
to receive a Taxpayer Identification Number to the appropriate Internal Revenue
Service Center or Social Security Administration Office (or I intend to mail or
deliver an application in the near future). I understand that if I do not
provide a Taxpayer Identification Number to the payer, 31% of all payments made
to me on account of the Exchange Notes shall be retained until I provide a
Taxpayer Identification Number to the payer and that, if I do not provide my
Taxpayer Identification Number within sixty days, such retained amounts shall be
remitted to the Internal Revenue Service as backup withholding and 31% of all
reportable payments made to me thereafter will be withheld and remitted to the
Internal Revenue Service until I provide a Taxpayer Identification Number.

SIGNATURE                                         DATE
         --------------------------------------       --------------------------

NOTE:    FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP
         WITHHOLDING OF 31% OF ANY PAYMENTS MADE TO YOU ON ACCOUNT OF THE
         EXCHANGE NOTES. PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION
         OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL
         DETAILS.




                                      -15-

   16



                 
                    TO BE COMPLETED BY ALL TENDERING HOLDERS
                                (SEE INSTRUCTION 8)                                       Department of the Treasury
                                                                                          INTERNAL REVENUE SERVICE
               PAYER'S NAME: AMERICAN PLUMBING & MECHANICAL, INC.

========================================================================================================================
SUBSTITUTE                     PART I - TAXPAYER IDENTIFICATION NUMBER (TIN)                 SOCIAL SECURITY NUMBER

FORM W-9                       ENTER YOUR TIN IN THE APPROPRIATE BOX.  FOR                ------------------------------
                               INDIVIDUALS, THIS IS YOUR SOCIAL SECURITY NUMBER (SSN).                  OR
DEPARTMENT OF THE TREASURY     FOR SOLE PROPRIETORS, SEE THE INSTRUCTIONS IN THE
INTERNAL REVENUE SERVICE       ENCLOSED GUIDELINES.  FOR OTHER ENTITIES, IT IS YOUR       EMPLOYER IDENTIFICATION NUMBER
                               EMPLOYER IDENTIFICATION NUMBER (EIN).  IF YOU DO NOT
REQUEST FOR TAXPAYER           HAVE A NUMBER, SEE HOW TO GET A TIN IN THE ENCLOSED        ------------------------------
IDENTIFICATION NUMBER          GUIDELINES.
AND CERTIFICATION
                               NOTE:  IF THE ACCOUNT IS IN MORE THAN ONE NAME, SEE
                               THE CHART ON PAGE 2 OF THE ENCLOSED GUIDELINES FOR
                               INSTRUCTIONS ON WHOSE NUMBER TO ENTER.
                               -----------------------------------------------------------------------------------------

                               PART II - FOR PAYEES EXEMPT FROM BACKUP WITHHOLDING
                               (See Part II instructions in the enclosed Guidelines.)

- ------------------------------------------------------------------------------------------------------------------------

PART III - CERTIFICATION - UNDER PENALTIES OF PERJURY, I CERTIFY THAT:

(1)  The number shown on this form is my correct Taxpayer Identification Number (or I am waiting for a number to be
     issued to me), and

(2)  I am not subject to backup withholding because: (a) I am exempt from backup withholding, or (b) I have not been
     notified by the Internal Revenue Service (IRS) that I am subject to backup withholding as a result of a failure
     to report all interest or dividends, or (c) the IRS has notified me that I am no longer subject to backup
     withholding.


Signature                                                              Date                                    , 1999
         ---------------------------------------------------               ------------------------------------
========================================================================================================================


    CERTIFICATION INSTRUCTIONS.-You must cross out item 2 above if you have been
notified by the IRS that you are currently subject to backup withholding because
you have failed to report all interest or dividends on your tax return. For real
estate transactions, item 2 does not apply. For mortgage interest paid, the
acquisition or abandonment of secured property, cancellation of debt,
contributions to an individual retirement arrangement (IRA), and generally
payments other than interest and dividends, you are not required to sign the
Certification, but you must provide your correct TIN.




                                      -16-