1 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; and in the Registration Statement (Form S-8 No. 333-11791) pertaining to the Service Experts, Inc. 1996 Incentive Stock Plan, Service Experts, Inc. 1996 Non-Employee Director Stock Option Plan and Service Experts, Inc. 1996 Employee Stock Purchase Plan, of our report dated September 22, 1997, with respect to the financial statements of Martin Mechanical Contractors, Inc., of our report dated September 19, 1997 with respect to the financial statements of E.L. Payne Company, of our report dated September 21, 1997 with respect to the financial statements of Getzchman Heating & Sheet Metal Contractors, Inc., and of our report dated September 18, 1997 with respect to the financial statements of Teays Valley Heating and Cooling, Inc. included in this Current Report on Form 8-K dated September 26, 1997, filed with the Securities and Exchange Commission. /s/ Ernst & Young LLP Nashville, Tennessee September 25, 1997