#1 · SEATTLE
Heat pumps are the wet side's ideal HVAC: our mild winters sit squarely in their efficiency sweet spot, they replace both furnace and AC, and Washington utility rebates plus federal credits routinely knock thousands off installed cost.
Wet-side market range — get itemized quotes before work starts
Companies whose focus matches this work are listed first, then Seattle's other top-rated hvac pros. Same no-pay-to-play ranking as everywhere on Wetside Plumbing — the formula.
Google Business data, 2026-08-07. See the full Seattle ranking →
Also searched as: gas or electric heat pump, heat pumps.
Yes — modern cold-climate heat pumps hold full capacity well below wet-side winter temperatures. Western Washington rarely drops below their efficient range; ask for a cold-climate-rated model and you're covered.
At wet-side electricity rates, a heat pump typically costs less to run than gas heat and far less than electric resistance heat, before rebates. See our heat pump vs furnace guide.
Ask for their Washington L&I contractor number and verify it at secure.lni.wa.gov/verify — active license, bond, and insurance. Listings above with a green badge are ones we've already matched to an active license in state records.