What Washington homes are up against.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31. · U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
A heat pump here earns its keep on the heating side, and the compressor and heat exchanger cycle for far longer each year than they would in a shorter season. Homes in Washington run heat about ten months a year, from September through June. That kind of sustained runtime means wear accumulates on the parts that matter most, and a sizing error or a loose fitting that might go unnoticed somewhere else announces itself well before a Washington winter is out. The gap between a well-specified install and a rushed one closes faster here. That is what a licensed contractor has to get right at the front end.
A quote for heat pump work starts with what is already in the house. Ducts sized for a furnace run differently than a heat pump needs them to, and an electrical panel that met code when it was installed may not carry a modern heat pump load. Half the homes in Washington were built in 1985 or earlier (2020-2024 ACS 5-year). That means a contractor in any part of the state, working on a house anywhere in the distribution, has to open the system and measure before writing a specification. What the panel can supply and what the ducts can move are findings, not assumptions.
Does your county put extra stress on HVAC equipment?
2015–2024 · Source: NOAA National Centers for Environmental Information, Storm Events Database.
A condenser sitting outside faces whatever the sky delivers: freezing rain, heavy snow loads, high winds, and summer heat that pushes a system hard for weeks at a stretch. A unit sized for mild conditions and set without thought to drainage or airflow will wear faster and recover slower when conditions turn serious. The contractor you are matched with knows what outdoor equipment in your county is actually asked to handle, and sizes and positions it accordingly.
Washington HVAC Installation and Repair License Requirements
Washington sets its own licensing rules for HVAC installation and repair work, and the provisions below are quoted directly from state sources rather than paraphrased.
Washington requires contractor registration rather than an HVAC licence: every contractor must register with the Department of Labor and Industries, and advertising, bidding or working as a contractor without that registration is a gross misdemeanour.
A state license for this trade determines who is legally permitted to do the work on your home. Unlicensed contractors are not operating within the state's framework, and that distinction matters before you hire anyone. The contractors this site routes requests to hold the license Washington requires for this work, and that is the filter every request passes through.
Read the sourced provisions1 provisions
Washington requires contractor registration rather than an HVAC licence: every contractor must register with the Department of Labor and Industries, and advertising, bidding or working as a contractor without that registration is a gross misdemeanour.