EXHIBIT 23.4








RP FINANCIAL, LC.
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Financial Services Industry Consultants



                                        July 27, 1998


Board of Trustees
Service Bancorp, MHC
Board of Directors
Summit Bank
81 Main Street
Medway, Massachusetts 02053


Gentlemen:


We hereby  consent to the use of our firm's  name in the Form SB-2  Registration
Statement and any amendments  thereto for Service  Bancorp,  Inc. We also hereby
consent to the inclusion of,  summary of and references to our Appraisal and our
statement   concerning   subscription  rights  in  such  filings  including  the
Prospectus of Service Bancorp, Inc.


                                        Sincerely,

                                        RP FINANCIAL, LC.

                                        /s/ Gregory E. Dunn

                                        Gregory E. Dunn
                                        Senior Vice President



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