City-County Building Air Handler Unit #7 Upgrades Rebid

Dane County is seeking bids from qualified contractors for the City-County Building Air Handler Unit #7 Upgrades Rebid , located at NO VALUE . This project involves the replacement and upgrade of Air Handling Unit AHU-7 and associated HVAC, piping, controls, and electrical work as detailed in the construction documents, and is being delivered under a lump-sum contract.

The goal of this project is to modernize aging HVAC infrastructure, improve system performance, and ensure reliable building ventilation. Work is expected to be performed in coordination with ongoing County operations within an occupied government facility, and must comply with all applicable county specifications, ordinances, local permitting requirements, or prevailing wage laws.

Interested vendors should have demonstrated experience in commercial HVAC system upgrades, mechanical retrofits, and work within active public buildings and the ability to manage projects of similar size and complexity. A pre-bid meeting is scheduled for Monday, December 15, 2025 at 10:00 am at Dane County City-County Building- 210 Martin Luther King Jr. Blvd., Madison, WI , and all questions must be submitted by Tuesday, December 23, 2025 . Bid packages are due by Tuesday, January 6, 2026 at 2:00 pm .

This project addresses performance issues associated with an aging air-handling system serving the City-County Building. The existing HVAC system has experienced ongoing operational inefficiencies and deteriorating components, making this upgrade a priority for facility operations.

Key considerations for vendors include limited access within a downtown government facility, work around occupied spaces, and coordination with mechanical, electrical, and control systems that must remain operational during construction. The County requires careful planning to ensure minimal disruption to building occupants, clean and safe work practices, and adherence to a tight scheduling window. Bidders are strongly encouraged to review existing site conditions and propose approaches that align with project objectives and the detailed specifications provided.