Heating System Install at the Carlisle Maintenance Garage

The Iowa Department of Transportation seeks competitive sealed bids to remove an existing in‑floor heating system and install a new ceiling‑hung infrared heating system at the Carlisle Maintenance Garage. The work includes demolition of existing boilers, pumps, piping, and concrete slab; patching the floor and sealing roof penetrations; and installing the infrared heating equipment. The contract period is estimated to run from early September to early November 2026. The solicitation is open to qualified contractors with experience in HVAC/ heating system removal and installation, as well as related plumbing and equipment maintenance. • Remove in‑floor heating pumps, boilers, piping, and concrete slab; retain in‑floor piping as abandoned. • Patch demolished floor slab and seal roof penetrations. • Install new ceiling‑hung infrared heating system. • Work must be performed under Iowa DOT supervision with a 24‑hour advance notice for installation activities. • Bids must be submitted sealed by August 26, 2026, with a public bid opening on the same date via Teams.