Rooftop Chiller Replacement Project

Contra Costa County is soliciting sealed bids for the Rooftop Chiller Replacement Project, identified as authorization number WH364 A/B. The project involves the replacement of four rooftop packaged chiller units at 151 Linus Pauling Drive in Hercules, California, and requires the new units to be integrated into the existing building management system. The estimated base bid cost for the project is 2,966,094 dollars. The prime contractor must hold a valid Class B General Building Contractor license and provide all necessary labor, materials, equipment, and transportation to complete the work in accordance with the specifications on file with the County Public Works Department. Bids must be submitted in sealed form to the Director of Public Works at 255 Glacier Drive, Martinez, California, by October 21, 2026, at 2:00 p.m. A mandatory pre-bid conference and site visit were scheduled for September 9, 2026. Requirements for submission include the use of the official bid form and the provision of bid security via cash, certified check, cashier's check, or a bid bond from an admitted surety insurer authorized in California. The county also encourages participation from Disabled Veteran Business Enterprises, as well as MBE, WBE, SBE, and LBE firms. Technical inquiries are directed to Margaret Thorp within the Capital Projects Management Division.