AirProHQ
Seattle, WA · Updated Oct 2026

61 HVAC contractors in Seattle — 59 with a license we could verify.

AirProHQ lists 61 heating and cooling companies in Seattle, WA; 59 (97%) match a license on the Washington L&I register. The 98108, 98168, 98125 ZIP codes hold 30% of them. Of those 59, 57 are current and 2 have passed the expiry date shown on the register; those listings say so. These listings come from the license register rather than review sites, so most carry no public rating — a verified license with no reviews is normal here, not a warning sign.

Seattle at a glance
License boardWashington L&I
Licenses renewing within 90 days3
Verify a license on the Washington L&I lookup

How we check every listing: our full verification methodology.

61Contractors listed
59License-verified · 97%

59 license-verified shown first, then 2 unverified · distances from the center of the listed offices

Sorted: license status, then name

HVAC contractors in Seattle, WA

21 more in SeattleZIPLicenseContact
Refrigeration Doctor98103VerifiedREFRID*782OACallProfile
Seatac Build & Remodel98198VerifiedSEATABR800M9CallProfile
Seattle Mechanical Inc98109VerifiedSEATTMI804CDCallProfile
Sha Mechanical98043VerifiedSHAMEM*782KPCallProfile
Sno Valley Process Solutions98108VerifiedSNOVAVP751BMCallProfile
Sound Oil Co98118VerifiedSOUNDOC016PHCallProfile
TrueTemp Heating LLC98038VerifiedTRUETHL755NACallProfile
Uni Refrigeration98105VerifiedUNIRER*919PACallProfile
United Systems Mechanical LLC98134VerifiedUNITESM813QOCallProfile
Vent Services98125VerifiedVENTSS*756RTCallProfile
Washington Heating and A/C, Inc.98103VerifiedWASHIHC806P6CallProfile
West Seattle Heating & Air98126VerifiedWESTSSH880CNCallProfile
Westworld Airworks LLC98101VerifiedWESTWAL757P8CallProfile
All Systems Heating & Cooling98165VerifiedALLSYSH892J9CallProfile
Evergreen Home Heating & Engy98108VerifiedEVERGHH910JOCallProfile
Hotline Heating LLC98146VerifiedHOTLIH*844PUCallProfile
One Hour Htg & A/C Of Ctrl Sea98144VerifiedONEHOHH741CLCallProfile
Coffman Engineers Inc98101ExpiredCallProfile
Olson Energy Serv/Gas Appl Svc98107ExpiredCallProfile
After Hours Heating & AC - Use As Contractor98155Not on fileCallProfile
Brennan Heating & AC LLC98168Not on file—Profile
Where they're based

7 ZIP codes hold 48% of Seattle's listed offices

Counted from the office address on each record. A contractor based near you usually means a shorter response window on a hot afternoon.

  1. 01981088
  2. 02981686
  3. 03981254
  4. 04981264
  5. 05981183
  6. 06981552
  7. 07981062
After Hours Heating & AC - Use As ContractorAcco Engineered Systems IncAccurate Mechanical LLCAce Hvac Service LLCAdvanced Energy Savers IncAir Commodities IncAmbient Air Heating LLCApl Repairs LLCApollonius LLCBlack Lotus Hvac LLCBrennan Heating & AC LLCComfort For Less Htg & CoolingCloud 9 Heating & Air LLCCoffman Engineers IncComfort Tech Heating & A/C IncCommercial Filter Sales & SvcEvergreen Home Heating & EngyElite Hvac & Refrigeration LLCEnergy Efficient System LLCEnergy Technologies LLCEvergreen Refrigeration LLCGenesee Fuel & Heating Co, IncGlendale Heating & A/CGo Green Heating Ac & Elec LLCGreat Sun CorpGreenwood Htng & Home ServicesHillyard HeatingHeritage HVAC LLCJames Heating And MoreJoanis Mechanical LLCLong Equipment Repair PllcLuna Home Comfort LLCMethod Energy LLCMini Split ProsNeudorfer Engineers LLCOcean Park Mechanical IncOlson Energy Serv/Gas Appl SvcOne Hour Htg & A/C Of Ctrl SeaPro Heat LLCProgressive Comfort SolutionsPsr Mechanical LLCRefrigeration DoctorSeatac Build & RemodelSha MechanicalSno Valley Process SolutionsSound Oil CoUni RefrigerationUnited Systems Mechanical LLCVent ServicesWest Seattle Heating & AirWashington Heating and A/C, Inc.Westworld Airworks LLC 98108981689812598126
56 of 61 listings have a geocoded office address. Dots are offices, not service areas.License verifiedNot verified24/7
Know the fair price

What HVAC work costs in Seattle

National 2026 ranges from our cost guides. Ask any contractor for a written, itemized quote and compare it against them.

JobTypical cost
Diagnostic / service call$75 – $200
Capacitor replacement$100 – $250
Refrigerant recharge$200 – $600
Compressor replacement$1,300 – $2,800
Central air conditioner$3,900 – $7,900
Full HVAC (furnace + AC)$5,000 – $12,500
Sources: AC repair cost guide · HVAC replacement cost guide
Seattle FAQ

Hiring an HVAC contractor in Seattle

Answers built from Seattle's own listing data.

01

How do I check a Seattle HVAC contractor's license?

Ask for the license number and search it on the Washington L&I lookup (official site). 59 of the 61 listings here already match an active license; each of those profiles links straight to the lookup.

02

Why do most Seattle listings show no reviews?

Our Seattle data comes from the Washington L&I license register, not from review sites, so many licensed one-truck operations have no public review profile. A verified license with no reviews is not a red flag — ask for two recent local references instead.

HVAC contractors near Seattle

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