NEW BID DATE - Installation of a Concrete Slab with Boiler and Radiant Heat and Solar Array for a New Greenhouse

College of DuPage, Community College District No. 502, is requesting sealed bids for installation of a concrete slab with boiler, radiant heat systems, and solar array for a new greenhouse facility, with bids due August 26, 2026 at 1:00 p.m. Central Time and a mandatory site visit on July 28, 2026. The College has established an aspirational Business Enterprise Program (BEP) participation goal of 30 percent for this contract.

Work includes concrete slab installation, coordination with greenhouse manufacturer Atlas Greenhouse for structure installation, and all electrical, plumbing, and mechanical work. The College has procured and stored on-site the solar array parts, radiant flooring parts, boiler equipment, and greenhouse structure; the contractor will integrate these materials per Engineering Resource Associates drawings (February 14, 2025) and J.P. Architects permit set (September 2, 2025). Project commencement is targeted for Fall 2026 or Spring 2027, with completion no later than June 1, 2027.

Illinois Prevailing Wage Act rates apply for DuPage County; contractors must obtain current rates from the Illinois Department of Labor. Successful bidders must submit a Performance and Payment Bond and provide a complete list of all subcontractors prior to the first invoice; all contractors and subcontractors must register with the Village of Glen Ellyn prior to permit issuance. Bid security of 15 percent of the total base bid is required in the form of a bid bond, cashier's check, or certified check. All prices must be firm, F.O.B. Destination, and include a $50,000 allowance in the final bid total. Payment is made within 60 days of receipt of properly submitted invoices via ACH transfer, processing the third week of each month. The pre-bid conference is July 22, 2026 at 10:00 a.m. Central Time via Zoom. Questions are due July 30, 2026 at 12:00 p.m. Central Time. Addendum 2 has been posted and must be acknowledged in the bid submission. Target board approval is September 17, 2026.