Agenda Item: 12
CITY OF SANTA CLARITA
AGENDA REPORT
CONSENT CALENDAR
CITY MANAGER APPROVAL:
DATE: November 25, 2025
SUBJECT: CITY HALL & VALENCIA LIBRARY WINDOW SEAL & WALL JOINT REPAIR - PROJECT M1044 CONSTRUCTION CONTRACT
MODIFICATIONS
DEPARTMENT: Neighborhood Services
PRESENTER: Cassidy Skelton
RECOMMENDED ACTION
City Council:
1. Authorize an increased expenditure authority for construction activity with Angelus Waterproofing and Restoration, Inc., in the amount of $93,000 for a revised total contract amount not to exceed $477,777.
2. Appropriate $93,000 from General Fund Capital Projects Fund (Fund 601) to expenditure account M1044601-516101. Increase transfers out from General Fund (fund 100) account 1009500-710601 and increase transfers in to General Fund Capital Projects Fund (Fund 601) account 601-600100 in the amount of $93,000.
3. Authorize the City Manager or designee to execute all documents, subject to City Attorney approval.
BACKGROUND
The City of Santa Clarita (City) City Hall was constructed in 1986 and acquired by the City in 1991. The building is approximately 74,000 square feet and serves as the central facility for several City departments. In 2011, the City Council approved the acquisition of the public libraries from Los Angeles County, which included the Valencia Library. The Valencia Library is roughly 24,000 square feet and provides public, office, and meeting space serving the Valencia and Saugus communities. In June 2025, the City Council awarded a contract to Angelus Waterproofing and Restoration, Inc., following a formal competitive bidding process, to complete the City Hall & Valencia Library Window Seal & Wall Joint Repair Project, which focuses on replacing deteriorating seals and addressing long-standing moisture issues at both
facilities.
As work has progressed, additional repair needs specific to the City Hall portion of the project have been identified that were not included in the original scope. Once the project started, the first application of the new sealant system, the required pull tests failed to meet the manufacturer’s specifications. To ensure the project qualifies for the full 20-year warranty and provides long-term protection against water intrusion, the failed test requires additional preparation work, sealant removal, and re-application measures across multiple locations.
These issues could not have been identified when City staff initially created the project scope because the testing only happens once the old material is taken off and the new sealant material is applied, then tested. The revised application detail from the manufacturer to rectify the issues requires two applications rather than the originally identified single application. This requires the contractor to mobilize elevated staging twice in each area to allow time for the first application to cure before the second application is installed. This correlates to extended labor hours to effectively install the sealant, as well as additional rental costs for the equipment being used. To confirm the need for the additional work and validate the contractor’s findings, City staff brought in a third-party specialist to review the results and verify that the corrective measures are necessary to achieve proper adhesion and long-term performance.
The additional work totals approximately $93,000 and is required to correctly complete the City Hall repairs and prevent future leaks, particularly during storm events. The requested budget appropriation, combined with the existing project budget, will fully fund the revised scope of work.
ALTERNATIVE ACTION
Other action as determined by the City Council.
FISCAL IMPACT
Upon approval of the recommended action, adequate funds in the amount of $496,436 are available in the City Hall & Valencia Library Window Seal & Wall Joint Repair, Project M1044, expenditure accounts M1044309-516101 (Public Library Fund) and M1044601-516101 (General Fund - Capital) to support the recommended contract and associated project costs.
ATTACHMENTS
Change Order Request (available in the City Clerk's Reading File)