Exhibit 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement No. 333-220134 on Form S-8 of Randolph Bancorp, Inc. of our report dated March 15, 2018 relating to the consolidated financial statements of Randolph Bancorp, Inc. appearing in this Annual Report on Form 10-K/A.
/s/ Crowe Horwath LLP
New York, New York
April 6, 2018