EXHIBIT 23

CONSENT OF INDEPENDENT REGISTERED

PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the registration statement on Form S-8 (File No. 333-51702) of Connecticut Water Service, Inc. of our report dated June 26, 2009 relating to the financial statements of Savings Plan of the Connecticut Water Company as of December 31, 2008 and 2007 and for the years then ended, which appears in this 2008 Annual Report on Form 11-K.

/s/ J.H. Cohn LLP

Glastonbury, Connecticut

June 26, 2009