EXHIBIT 99.2






  CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 1350 OF CHAPTER
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                      63 OF TITLE 18 OF THE UNITED STATES CODE


I, Steven C. Preston, the chief financial officer of The ServiceMaster  Company,
certify that that (i) the  Quarterly  Report on Form 10-Q for the quarter  ended
September 30, 2002,  fully complies with  requirements of Section 13(a) or 15(d)
of the  Securities  Exchange Act of 1934 and (ii) the  information  contained in
such  Form  10-Q  fairly  presents,  in all  material  respects,  the  financial
condition and results of operations of The ServiceMaster Company.








                                                       /s/    Steven C. Preston
                                                              Steven C. Preston
                                                              November 14, 2002