Exhibit 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Healthcare Services Group, Inc., a Pennsylvania corporation (the “Company”) on Form 10-Q for the quarter ended June 30, 2008 as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), I, Richard W. Hudson, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.	The Form 10-Q fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d); and
2.	The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company

/s/ Richard W. Hudson  

Richard W. Hudson 

Chief Financial Officer 
July18, 2008

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