314 HVAC Repair Contractors in Seattle, WA

Seattle's heating-dominant climate means HVAC repair calls skew heavily toward furnace, heat pump, and boiler work through the long rainy season, with AC repair becoming a growing category as newer systems age. Seventy-five contractors serve the hvac-repair Seattle market with a 4.5-star average across 13,854 reviews. Thirteen offer 24/7 coverage — adequate for a city where heating failures in cold, wet conditions are the primary emergency scenario.

Diagnostic service calls run $83-$220. Thermostat replacements average $165-$550, while blower motor replacements land at $440-$1,210. Washington applies local licensing requirements rather than a single statewide credential — Washington State Department of Labor & Industries (L&I) oversees some trades, but verify municipal licensing for HVAC specifically.

Greenwood Heating and Home Services (4.9 stars) is the most cited contractor in the market, with customers highlighting both fast response and consistent technical quality. Eco Electric, Plumbing, Heating and Air (4.9 stars) earns strong marks for prompt scheduling and professional workmanship. Brennan Heating, Air Conditioning, & Electric (4.6 stars) is noted for technical expertise and reliable follow-through, particularly on heat pump repairs that require familiarity with both heating and cooling systems.