IAH Terminal D HVAC Efficiency Upgrades

The Houston Airport System is seeking a contractor to remove, replace, and upgrade HVAC units and equipment throughout multiple levels of George Bush Intercontinental Airport (IAH) under Solicitation No. CB-2026-0062, with bids due October 22, 2026 at 10:00 a.m. CT. A mandatory pre-bid conference and site visit are scheduled for September 22, 2026 at 10:00 a.m. CT at the HAS Infrastructure Division Office Building Auditorium No. 1, 111 Standifer Drive, Humble, Texas.

The project scope spans demolition of existing air handling units, heat exchangers, pumps, fan coil units, ductwork, and hydronic piping across basement, ticketing, apron, international arrivals, departures, roof, and tunnel levels, with installation of new HVAC equipment featuring enhanced efficiency, electrical connections, and DDC (direct digital control) systems. The base unit price table includes 11 air handling units (4,300 to 48,800 CFM capacity), 179 DDC control points, 176 VAV terminal units, exhaust fans, pump units, electrical panels, and associated components. Cash allowances total $650,000 for permitting fees, signage, and temporary facilities. The contract spans 1,681 calendar days (1,460 construction days plus 221 blackout days for holidays and airport closures) with substantial completion targeted for July 31, 2030. Bidders must submit a security deposit equal to 10 percent of the total bid price.

The project is funded by Airport Improvement Program grant funds and requires compliance with Buy American provisions, FAA regulations, prevailing wage requirements, and Disadvantaged Business Enterprise participation with a 0% DBE goal. Bidders must submit a DBE Participation Plan. Bidders must also comply with City of Houston ethics ordinances, anti-boycott certifications, human trafficking zero tolerance policies, debarment certifications, and conflict of interest questionnaires. Questions are due September 29, 2026 at 12:00 p.m. CT. Bids will be publicly opened and read at 11:00 a.m. CT on October 22, 2026.