Exhibit 31.2

                                  CERTIFICATION

I, Louis J. Paglia, certify that:

    1.   I have reviewed this annual report on Form 10-K of UIL Holdings
         Corporation;

    2.   Based on my knowledge, this report does not contain any untrue
         statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the
         circumstances under which such statements were made, not
         misleading with respect to the period covered by this report;

    3.   Based on my knowledge, the financial statements, and other
         financial information included in this report, fairly present
         in all material respects the financial condition, results of
         operations and cash flows of the registrant as of, and for,
         the periods presented in this report;

    4.   The registrant's other certifying officer and I are
         responsible for establishing and maintaining disclosure
         controls and procedures (as defined in Exchange Act Rules
         13a-15(e) and 15d-15(e)) and internal control over financial
         reporting (as defined in Exchange Act Rules 13a-15(f) and
         15d-15(f)) for the registrant and have:

         a)  Designed such disclosure controls and procedures, or caused
             such disclosure controls and procedures to be designed under
             our supervision, to ensure that material information relating
             to the registrant, including its consolidated subsidiaries, is
             made known to us by others within those entities, particularly
             during the period in which this report is being prepared;

         b)  Designed such internal control over financial reporting, or
             caused such internal control over financial reporting to be
             designed under our supervision, to provide reasonable
             assurance regarding the reliability of financial reporting and
             the preparation of financial statements for external purposes
             in accordance with generally accepted accounting principles;

        c)   Evaluated the effectiveness of the registrant's disclosure
             controls and procedures and presented in this report our
             conclusions about the effectiveness of the disclosure controls
             and procedures, as of the end of the period covered by this
             report based on such evaluation; and

        d)   Disclosed in this report any change in the registrant's
             internal control over financial reporting that occurred during
             the registrant's most recent fiscal quarter (the registrant's
             fourth fiscal quarter in the case of an annual report) that
             has materially affected, or is reasonably likely to materially
             affect, the registrant's internal control over financial
             reporting; and

    5.  The registrant's other certifying officer and I have
        disclosed, based on our most recent evaluation of internal
        control over financial reporting, to the registrant's auditors
        and the audit committee of the registrant's board of directors
        (or persons performing the equivalent functions):

        a)   All significant deficiencies and material weaknesses in the
             design or operation of internal control over financial
             reporting which are reasonably likely to adversely affect the
             registrant's ability to record, process, summarize and report
             financial information; and

        b)   Any fraud, whether or not material, that involves management
             or other employees who have a significant role in the
             registrant's internal control over financial reporting.


Date:  February 22, 2005                           /s/ Louis J. Paglia
                                               ------------------------------
                                                      Louis J. Paglia
                                                  Executive Vice President
                                                 and Chief Financial Officer