127 Commercial HVAC Contractors in Seattle, WA

Seattle's tech-heavy commercial base, combined with a shifting climate, is reshaping commercial HVAC requirements across the city. Office towers, data centers, and mixed-use buildings that previously relied on simple heating systems are now evaluating full cooling infrastructure. Fifteen commercial-hvac Seattle contractors serve this segment with a 4.3-star average across 8,473 reviews — a smaller, more specialized pool than the residential market.

Annual rooftop unit maintenance runs $550-$2,200 per unit. Small business service contracts (under 5K sqft) typically run $1,100-$5,500 annually, while mid-size commercial facilities in the 5K-25K sqft range pay $3,850-$11,000. Washington applies local licensing requirements rather than a single statewide credential — verify contractor standing with the Washington State Department of Labor & Industries as a baseline.

Greenwood Heating and Home Services (4.9 stars) is cited for rapid response and technical professionalism, qualities that matter in commercial contexts where downtime is costly. 2 Sons Plumbing, Sewer, Septic, Electric, Heating & Air (4.9 stars) earns mention for consistent workmanship. Progressive Comfort Solutions (4.9 stars) is noted for prompt scheduling and technical expertise, with reviewers flagging their communication quality throughout complex commercial jobs.