HVAC contractors in Seattle, WA
56 listingsSource: Washington L&I license records. Last verified 2026-08-31.
There are 56 hvac contractors in Seattle, Washington with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-09-17; every listing shows its own number and expiry date. All are drawn from the Washington L&I register; expired and inactive licenses are excluded.
| Business | License | Type | Expires | City | Zip | |
|---|---|---|---|---|---|---|
| ACCO ENGINEERED SYSTEMS INC | ACCOESI971KW | ELECTRICAL CONTRACTOR | 2026-11-10 | SEATTLE | 98108 | Set up workspace |
| ACCURATE MECHANICAL LLC | ACCURML765JS | CONSTRUCTION CONTRACTOR | 2028-05-19 | SEATTLE | 98106 | Set up workspace |
| ACCURATE MECHANICAL LLC | ACCURML766DF | ELECTRICAL CONTRACTOR | 2028-03-06 | SEATTLE | 98106 | Set up workspace |
| ACE HVAC SERVICE LLC | ACEHVHS797OT | CONSTRUCTION CONTRACTOR | 2027-09-02 | SEATTLE | 98108 | Set up workspace |
| ADVANCED ENERGY SAVERS INC | ADVANES100K9 | CONSTRUCTION CONTRACTOR | 2028-05-21 | SEATTLE | 98168 | Set up workspace |
| Air Commodities Inc | AIRCOCI748BL | ELECTRICAL CONTRACTOR | 2028-01-13 | SEATTLE | 98108 | Set up workspace |
| AMBIENT AIR HEATING LLC | AMBIEAH822BD | CONSTRUCTION CONTRACTOR | 2028-01-05 | SEATTLE | 98125 | Set up workspace |
| AMPLIFIED SOUND CO | AMPLISC302P1 | ELECTRICAL CONTRACTOR | 2026-12-31 | SEATTLE | 98178 | Set up workspace |
| APL REPAIRS LLC | APLRERL747NM | CONSTRUCTION CONTRACTOR | 2028-08-17 | SEATTLE | 98178 | Set up workspace |
| APOLLONIUS LLC | APOLLL*751N9 | CONSTRUCTION CONTRACTOR | 2027-08-29 | SEATTLE | 98136 | Set up workspace |
| BLACK LOTUS HVAC LLC | BLACKLH759B9 | CONSTRUCTION CONTRACTOR | 2027-01-29 | SEATTLE | 98104 | Set up workspace |
| BULGER SAFE & LOCK INC | BULGESL171NQ | ELECTRICAL CONTRACTOR | 2027-11-19 | SEATTLE | 98125 | Set up workspace |
| CELLO TECHNOLOGIES | CELLOT*005NW | ELECTRICAL CONTRACTOR | 2027-02-24 | SEATTLE | 98115 | Set up workspace |
| CLOUD 9 HEATING & AIR LLC | CLOUD9H773CA | CONSTRUCTION CONTRACTOR | 2027-02-02 | SEATTLE | 98125 | Set up workspace |
| COFFMAN ENGINEERS INC | COFFMEI866O9 | CONSTRUCTION CONTRACTOR | 2026-10-09 | SEATTLE | 98101 | Set up workspace |
| COMFORT TECH HEATING & A/C INC | COMFOTH898CM | CONSTRUCTION CONTRACTOR | 2027-02-20 | SEATTLE | 98105 | Set up workspace |
| COMMERCIAL FILTER SALES & SVC | COMMEFS935B5 | CONSTRUCTION CONTRACTOR | 2027-04-17 | SEATTLE | 98134 | Set up workspace |
| CYC Mechanical | CYCMEM*830DM | ELECTRICAL CONTRACTOR | 2027-05-26 | SEATTLE | 98118 | Set up workspace |
| ELITE HVAC & REFRIGERATION LLC | ELITEHR741K2 | CONSTRUCTION CONTRACTOR | 2028-05-22 | SEATTLE | 98118 | Set up workspace |
| ENERGY EFFICIENT SYSTEM LLC | ENERGES843Q9 | CONSTRUCTION CONTRACTOR | 2027-02-05 | SEATTLE | 98144 | Set up workspace |
| ENERGY TECHNOLOGIES LLC | ENERGTL916K1 | CONSTRUCTION CONTRACTOR | 2027-07-07 | Seattle | 98117 | Set up workspace |
| ENTERO SYSTEM SERVICES INC | ENTERSS892MH | CONSTRUCTION CONTRACTOR | 2028-02-23 | SEATTLE | 98115 | Set up workspace |
| GENESEE FUEL & HEATING CO, INC | GENESI*001L6 | ELECTRICAL CONTRACTOR | 2026-12-16 | SEATTLE | 98118 | Set up workspace |
| GLENDALE HEATING & A/C | GLENDHA003CM | ELECTRICAL CONTRACTOR | 2028-02-14 | SEATTLE | 98168 | Set up workspace |
| GO GREEN HEATING AC & ELEC LLC | GOGREGH752DL | CONSTRUCTION CONTRACTOR | 2027-04-01 | SEATTLE | 98102 | Set up workspace |
| GREAT SUN CORP | GREATSC951D1 | CONSTRUCTION CONTRACTOR | 2027-04-05 | SEATTLE | 98108 | Set up workspace |
| GREENWOOD HTNG & HOME SERVICES | GREENHH740DD | ELECTRICAL CONTRACTOR | 2028-04-03 | SEATTLE | 98168 | Set up workspace |
| GUARDIAN SECURITY SYSTEMS INC | GUARDSS233K5 | ELECTRICAL CONTRACTOR | 2028-09-30 | SEATTLE | 98134 | Set up workspace |
| HINES INTERESTS LP | HINESIL981UQ | ELECTRICAL CONTRACTOR | 2028-04-01 | SEATTLE | 98104 | Set up workspace |
| JABCO CONSTRUCTION | JABCOC*875RL | ELECTRICAL CONTRACTOR | 2027-12-13 | SEATTLE | 98166 | Set up workspace |
| JOANIS MECHANICAL LLC | JOANIML891D3 | CONSTRUCTION CONTRACTOR | 2027-05-01 | SEATTLE | 98106 | Set up workspace |
| KANE AIR LLC | KANEAAL755CO | CONSTRUCTION CONTRACTOR | 2027-02-20 | SEATTLE | 98121 | Set up workspace |
| LONG EQUIPMENT REPAIR PLLC | LONGEER778J5 | CONSTRUCTION CONTRACTOR | 2027-04-25 | SEATTLE | 98178 | Set up workspace |
| LUNA HOME COMFORT LLC | LUNAHHC754QQ | CONSTRUCTION CONTRACTOR | 2027-11-18 | SEATTLE | 98126 | Set up workspace |
| METHOD ENERGY LLC | METHOEL771ME | CONSTRUCTION CONTRACTOR | 2027-08-01 | SEATTLE | 98104 | Set up workspace |
| MINI SPLIT PROS | MINISSP744L4 | CONSTRUCTION CONTRACTOR | 2028-07-01 | SEATTLE | 98116 | Set up workspace |
| NEUDORFER ENGINEERS LLC | NEUDOEL787LN | CONSTRUCTION CONTRACTOR | 2028-06-15 | SEATTLE | 98108 | Set up workspace |
| OCEAN PARK MECHANICAL INC | OCEANPM902D6 | ELECTRICAL CONTRACTOR | 2028-03-26 | SEATTLE | 98168 | Set up workspace |
| Olson Energy Serv/Gas Appl Svc | OLSONES863OD | CONSTRUCTION CONTRACTOR | 2026-09-17 | SEATTLE | 98107 | Set up workspace |
| ONE HOUR HTG & A/C OF CTRL SEA | ONEHOHH741CL | ELECTRICAL CONTRACTOR | 2028-02-26 | SEATTLE | 98144 | Set up workspace |
| ONPOINT HVAC&R LLC | ONPOIHL758BW | CONSTRUCTION CONTRACTOR | 2027-01-21 | SEATTLE | 98118 | Set up workspace |
| PROGRESSIVE COMFORT SOLUTIONS | PROGRCS7827L | ELECTRICAL CONTRACTOR | 2027-01-15 | SEATTLE | 98117 | Set up workspace |
| PROGRESSIVE COMFORT SOLUTIONS | PROGRCS863J1 | CONSTRUCTION CONTRACTOR | 2028-06-12 | SEATTLE | 98117 | Set up workspace |
| PRO HEAT LLC | PROHEHL932JZ | CONSTRUCTION CONTRACTOR | 2027-11-12 | SEATTLE | 98155 | Set up workspace |
| PRO-STAFF MECHANICAL INC | PROSTMI006C8 | ELECTRICAL CONTRACTOR | 2028-03-30 | SEATTLE | 98133 | Set up workspace |
| PSR MECHANICAL LLC | PSRMEML804DS | ELECTRICAL CONTRACTOR | 2028-03-10 | SEATTLE | 98125 | Set up workspace |
| REFRIGERATION DOC | REFRID*752CJ | CONSTRUCTION CONTRACTOR | 2027-02-12 | SEATTLE | 98103 | Set up workspace |
| REFRIGERATION DOCTOR | REFRID*782OA | CONSTRUCTION CONTRACTOR | 2028-10-04 | SEATTLE | 98103 | Set up workspace |
| Seattle Mechanical Inc | SEATTMI804CD | ELECTRICAL CONTRACTOR | 2028-03-03 | SEATTLE | 98109 | Set up workspace |
| SNO VALLEY PROCESS SOLUTIONS | SNOVAVP751BM | ELECTRICAL CONTRACTOR | 2027-01-21 | SEATTLE | 98108 | Set up workspace |
Showing 1–50 of 56
Quick answers
- How many hvac contractors are in Seattle?
- 56 with a current Washington license, as of 2026-08-31.
- How do I check a license is current?
- Every listing shows its state license number and expiry. Verify any of them directly against the Washington L&I licensee database.