Air Duct Cleaning - City Hall Bid Opportunity

The City of Plymouth, Michigan issued an open solicitation for a comprehensive cleaning and sanitizing of the HVAC ductwork at its City Hall building. The scope required full interior cleaning of air‑handling units, supply and return ducts, coils, fans, diffusers, and related components in accordance with NADCA and other industry standards, along with safety, environmental, and documentation requirements. Four bidders submitted sealed proposals, each providing a unit‑price, a 10 % bid bond, and an estimated project duration ranging from two to eight days. The solicitation mandated a mandatory site walk‑through, NADCA certification, insurance, bonding, and a non‑collusion affidavit. No award decision or contract value was disclosed in the public materials. • Required cleaning of all HVAC ductwork, components, and sanitizing per NADCA/ASHRAE standards. • Mandatory walk‑through, 10 % bid/performance bond, and NADCA‑certified personnel. • Four bidders submitted proposals (total costs $12,870–$33,400 including bond) with projected durations of 2–8 days.