King County, Washington
HVAC repair and installation in Seattle, WA
Seattle's cool, wet climate long kept AC rare, but heat waves and smoke seasons have made heat pumps the standard upgrade, often replacing oil or gas furnaces.
Areas served include
Ballard · Capitol Hill · West Seattle · Wallingford · Beacon Hill · Northgate
Same-day appointments when a local contractor has an opening
59 ZIP codes covered in Seattle
Seattle homes and their HVAC systems
Ballard, Wallingford and Capitol Hill have many 1900s–1930s homes with oil furnaces or boilers; West Seattle and Beacon Hill mix older homes with mid-century construction.
Local conditions that affect your system
Seasons and peak demand in Seattle
Seattle's winters are long, gray and damp but mild, with temperatures mostly in the 30s and 40s. Summers are dry and pleasant, punctuated by heat waves and wildfire smoke. Heating needs are steady rather than extreme, which suits heat pumps, and cooling demand is concentrated in a handful of hot weeks each year.
Common HVAC calls in Seattle
- Heat Pump Installation
- Ductless Mini-Split
- Indoor Air Quality & Humidity
- Boiler & Radiant Heat Repair
Also available: emergency HVAC and every other HVAC service.
Seattle at a glance
- County
- King County
- Utilities
- Seattle City Light supplies electricity and Puget Sound Energy supplies natural gas.
- Permits & licensing
- The Seattle Department of Construction and Inspections (SDCI) issues permits. Contractors register with Washington L&I.
- ZIP codes covered
- 98101, 98102, 98103, 98104, 98105, 98106, 98107, 98108, 98109, 98111, 98112, 98113, 98114, 98115, 98116, 98117, 98118, 98119 and 41 more
Seattle HVAC FAQ
Should I replace my oil furnace with a heat pump in Seattle?
For most homes, yes. It adds cooling and usually lowers heating costs, but plan for oil tank decommissioning.
Do Seattle HVAC contractors need to be registered?
Yes. Contractors register with Washington L&I, and electrical work needs licensed electricians.
Last reviewed . General information, not a diagnosis of your system.
Guides for Seattle homeowners
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