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                                                                     EXHIBIT 23



                       CONSENT OF INDEPENDENT AUDITORS


We consent to the incorporation by reference in the Post-Effective Amendment No.
6 to the Registration Statement (Form S-4 No. 333-12319) and related Prospectus
of Service Experts, Inc. related to $50,000,000 aggregate amount of shares of
its $.01 par value common stock, warrants to purchase its common stock ("Common
Stock Warrants") and the shares of its common stock issued thereunder upon the
exercise of such Common Stock Warrants or debt securities ("Debt Securities"),
and the shares of common stock issued thereunder upon the conversion thereof; in
the Shelf Registration Statement on Form S-3 (No. 333-43917) and related
Prospectus pertaining to the resale of up to 500,000 shares of the Company's
Common Stock issued without registration under the Securities Act of 1933; in
the Registration Statement on Form S-8 (No. 333-11791) pertaining to the Service
Experts, Inc. 1996 Incentive Stock Plan, 1996 Non-Employee Director Stock
Option Plan, and 1996 Employee Stock Purchase Plan; in the Registration
Statement on Form S-8 (No. 333-59711) pertaining to the Service Experts, Inc.
Amended 1996 Incentive Stock Plan, Amended 1996 Employee Stock Purchase Plan,
1997 Nonqualified Stock Option Plan, Amended 1997 Nonqualified Stock Purchase
Plan and Amended Service Center Stock Option Plan; of our report dated October
23, 1998 with respect to the combined financial statements of Dodge Heating and
Air Conditioning, Inc. et al. and DH&A, Inc. and of our report dated October 30,
1998 with respect to financial statements of Climate Design Systems, Inc.
included in this Current Report on Form 8-K dated November 19, 1998, filed with
the Securities and Exchange Commission.


                                          /s/ Ernst & Young LLP
 
Nashville, Tennessee
November 19, 1998