West · Climate zones 4–6
HVAC service in Washington
Western Washington, including Seattle and Tacoma, has mild, wet winters and dry summers with occasional heat waves. Eastern Washington around Spokane and the Tri-Cities has colder winters and hotter summers.
- 453 ZIP codes covered
- 240 cities and towns
- Licensed contractors
Washington HVAC at a glance
- Climate
- Marine (IECC zones 4–6)
- What it means
- Mild, damp winters and dry summers with growing heat waves. Ductless heat pumps add efficient heat and cooling to homes built without AC.
- Common systems
- Heat pumps, Ductless mini-splits, Gas furnaces, Electric baseboard (older homes)
- Coverage
- 453 ZIP codes in 240 cities and towns
- Region
- West
Homes & equipment
Heating and cooling in Washington
Heat pumps are increasingly common statewide, and ductless heat pumps are a popular retrofit for homes with baseboard electric heat. Gas furnaces remain common in many homes.
Washington's energy code and utility programs encourage heat pumps and efficient equipment.
Common problems
HVAC problems we see in Washington
Heat waves
Homes without AC are vulnerable during extreme heat; heat pumps add cooling.
Wildfire smoke
Summer smoke makes filtration upgrades valuable.
Baseboard heat costs
Ductless heat pumps cut costs in homes heated with electric baseboards.
City guides
HVAC city guides in Washington
Other Washington areas in our network
Contractors in our network also cover Tacoma, Spokane, Vancouver, Olympia, Bellevue, Yakima, Kent, Everett, Bremerton, Renton, Lakewood, Puyallup, and 227 more communities. Enter your ZIP code in the request form to check yours.
Recommended
Services Washington homeowners need most
Contractor licensing in Washington
Washington contractors register with the Department of Labor & Industries, and HVAC electrical work requires a specialty electrician certification.
Utilities in Washington
Puget Sound Energy, Seattle City Light, Avista and many public utility districts supply electricity. PSE, Avista and Cascade Natural Gas supply gas.
FAQ
Washington HVAC questions
Is a ductless heat pump worth it with baseboard heat?+
Usually yes. It's far more efficient than electric resistance heat and adds summer cooling.
How do I check a Washington HVAC contractor?+
Verify their registration and bond on the Department of Labor & Industries website.
Other states in the West
HVAC help in Washington
Call to be connected with a licensed HVAC contractor serving your ZIP code, or send a request online.