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
What a contractor needs to know before quoting a heat pump job is not settled by a state total. 1,656 severe weather events were recorded in Washington between 2015 and 2024. That count tells you how hard equipment across Washington has been asked to run over the years, but it cannot tell a contractor how hard a specific system at a specific address has had to hold capacity and recover. A house in one county may have seen its equipment pushed close to its limits repeatedly; one elsewhere may have had a much easier run. The site visit is where that gap gets answered.
Before a contractor sizes or prices a heat pump for a Washington home, they have to look at what is already there. Ducts that were built for a furnace run at different pressures and volumes than a heat pump needs, and electrical service installed for resistance heat or no central system at all may not carry the load of a modern unit. Half the homes in Washington were built in 1985 or earlier (2020-2024 ACS 5-year). That means roughly half the homes a contractor walks into carry infrastructure that was designed around assumptions a heat pump does not share. The panel, the duct layout, and the insulation all get assessed on site, and what the inspection finds shapes the scope of the job.
Does your part of Washington put harder miles on your HVAC system?
2015–2024 · Source: NOAA National Centers for Environmental Information, Storm Events Database.
A condenser sitting outside in Washington faces wind, ice, standing water, heavy snow load, and heat in varying combinations depending on where the property sits. That exposure shapes what size unit belongs there, how it should be mounted and protected, and how often it needs attention. The contractor you are matched with knows that calculation for your county and applies it before any work begins.
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 limits who is legally permitted to do the work on your home. Unlicensed contractors operate outside that framework, and the liability for what goes wrong can fall back on you. Every contractor this site routes a request to holds the license Washington requires for this work.
View 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.