Charles Street Vehicle Maintenance HVAC Improvements

The City of Seattle is soliciting bids for the upgrade of the exhaust fan system and installation of a new makeup air unit at the Charles Street Vehicle Maintenance facility (805 South Charles St., Seattle, WA 98124). The scope includes removal of existing HVAC components, installation of new equipment, associated ductwork, controls, and any required electrical and plumbing connections to improve removal of welding shop gases. The Engineer’s Estimate for the work is $1,540,511. Bidders must submit a bid guaranty (5% of total bid) and comply with extensive Washington State public‑works, prevailing‑wage, and WMBE inclusion requirements. All subcontractors for HVAC, plumbing, electrical, structural steel, and rebar must be identified, or the bidder must self‑perform those trades. The contract will be awarded to the responsive, responsible bidder meeting the lowest responsible bid criteria. • Location: 805 South Charles Street, Seattle, WA • Scope: Exhaust fan upgrade, new makeup air unit, related ductwork, controls, and utility connections • Estimated value: $1.54 M (Engineer’s Estimate) • Mandatory bid guaranty: 5% of total bid • Required certifications: Washington State UBI, contractor registration, prevailing‑wage training, insurance, etc. • WMBE inclusion plan required (minimum 10 points to be responsive) • No pre‑bid meeting or site‑visit noted in the documents.