HVAC Contractors in Seattle, WA

Seattle's HVAC market is undergoing a rapid transformation. For decades, most Seattle homes were built without central air conditioning — the mild maritime climate made it seem unnecessary. Then came the heat domes. The summer 2021 event pushed Seattle temperatures to 108 degrees Fahrenheit, killing hundreds of people across the Pacific Northwest and triggering a massive, sustained wave of HVAC installations. ProMatch connects Seattle homeowners with licensed HVAC contractors who can install, service, and upgrade heating and cooling systems for the region's specific climate and the city's increasingly stringent energy codes.

Seattle HVAC: A Market Changed by Extreme Heat

Seattle's climate is technically classified as oceanic — mild, wet winters and dry summers with historically moderate temperatures. That description no longer captures the full picture. Heat dome events have now occurred multiple times in the past five years, and Seattle's building stock — most of it built without ductwork for cooling — is poorly equipped to handle them. The result is unprecedented demand for heat pump installations, mini-split systems, and ductless AC units throughout neighborhoods like Capitol Hill, Fremont, Wallingford, West Seattle, and the Eastside communities of Bellevue, Kirkland, and Redmond.

Washington State requires HVAC contractors to hold a Specialty Contractor registration with the Department of Labor and Industries, along with specific endorsements for electrical and refrigerant handling. All ProMatch contractors in the Seattle market are verified for current L&I registration, bonding, and general liability insurance. Seattle also requires permits for HVAC system replacements and new installations — ProMatch contractors handle permit applications as part of the project scope.

HVAC Services Seattle Homeowners Are Requesting

Heat Pump Installation

Heat pumps are the HVAC solution of choice for Seattle homeowners for several reasons: they provide both heating and cooling from a single system, they are dramatically more efficient than gas furnaces (important given Washington's clean electricity grid), and they qualify for significant incentives under the federal Inflation Reduction Act as well as Puget Sound Energy and Seattle City Light rebate programs. A qualified ProMatch contractor can calculate your total incentive eligibility — which can reach $3,000-$8,000 in combined federal tax credits and utility rebates — before you commit to a project.

Ductless Mini-Split Systems

For Seattle's many older homes — Craftsman bungalows in Columbia City, Victorians in Queen Anne, mid-century ranches in Shoreline and Kenmore — that lack ductwork, ductless mini-split systems are the most practical cooling solution. A single-zone mini-split serving a living area or bedroom can be installed in a day without any structural modifications. Multi-zone systems serving 3-4 rooms are more complex but still far less disruptive than installing a full duct system in a finished home. ProMatch contractors who specialize in ductless installations are available throughout King and Snohomish counties.

Furnace and Boiler Service

Despite the push toward electrification, gas furnaces and hot water boiler systems remain common in Seattle's older housing stock and require regular service — particularly after a long summer of disuse. Annual heating system tune-ups are recommended every fall before the wet season begins. ProMatch contractors provide maintenance, repair, and replacement services for all major furnace and boiler brands.

HVAC Quotes in Seattle: What to Budget

A single-zone ductless mini-split installation in Seattle typically runs $3,000-$5,500 installed. A whole-home ducted heat pump system for a home with existing ductwork runs $8,000-$16,000. New ductwork installation alongside a heat pump system adds $4,000-$10,000 depending on home size and layout complexity. Federal tax credits (up to 30% of project cost) and utility rebates can significantly reduce net costs — confirm eligibility with your contractor before signing a contract.

Get Free HVAC Quotes in Seattle Today

ProMatch connects Seattle homeowners with licensed HVAC contractors across King, Snohomish, and Pierce counties — serving all Seattle neighborhoods, Bellevue, Kirkland, Redmond, Renton, Kent, Federal Way, and Tacoma. Submit your project details and let qualified contractors compete for your business.

Free to submit. No obligation. No pressure. Get the right system at a fair price.