Tell us about the job
Takes about a minute. No obligation.
A heat pump in this county never gets an off-season. Homes in Whatcom County, WA run heat in every month of the year. The compressor cycles through heating and cooling without a long rest, and the reversing valve shifts direction repeatedly across the full year. Both components carry accumulated stress by the time a fault shows up, and a contractor pricing a repair has to look at what the refrigerant circuit and the electrical contacts have actually been through before settling on a scope.
Ductwork running through a house this age has been rerouted, re-taped, and lived in across more than one equipment swap, and the electrical has been touched at least once to accommodate something newer. By the time a technician opens the heat pump, the house is rarely where the diagnosis goes. Half the homes in Whatcom County, Washington were built in 1989 or earlier (2020-2024 ACS 5-year). That history matters for repair work because what the opened unit contains, corrosion on contacts, refrigerant line wear, compressor fatigue, reflects decades of cycling in this climate, and whether the parts it needs are still in production is the question that drives the scope and the bill.
The Parts of a Heat Pump a Contractor Checks First
The outdoor unit is what most homeowners see first, a metal cabinet sitting on a pad beside the house. Inside it, the compressor pressurizes refrigerant and the condenser coil transfers heat, and when either of those components is failing the whole system starts to behave badly. The compressor is usually where a contractor looks first.
Inside the house, the air handler holds the evaporator coil and the blower that moves conditioned air through your home. The refrigerant lines running between the two units and the reversing valve, which is what lets a heat pump both heat and cool, are also points a contractor examines when the system is short-cycling, losing output, or running but not conditioning the air.
The drawing shows a typical layout, and a licensed contractor determines which components apply to your specific system and situation.
Get matched in Whatcom CountyWhatcom County, by the numbers
Half the homes in Whatcom County, Washington were built in 1989 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesWhatcom County, Washington holds 103,520 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 63.7% of the occupied homes in Whatcom County, Washington (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Covering Heat Pump Repair in Whatcom County, Washington1 sourced rules and standards
Licensing Rules for HVAC Repair in Whatcom County, Washington
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.