Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 33-11717) and Form S-8 (No. 333-156269) of Middlesex Water Company of our reports dated March 13, 2009, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appear in this Form 10-K.

/s/ Beard Miller Company LLP

Beard Miller Company LLP

Reading, Pennsylvania

March 13, 2009