Best Licensed HVAC Contractors in Seattle, WA
29 HVAC contractors registered in Seattle hold current L&I licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by insurance status and bond amount.
How we chose: We identified 51 companies registered in Seattle. 29 passed license verification. The 8 below are the top-ranked of those. Our methodology
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- ✓ L&I License #ENERGTL916K1 — verify at state registryInsured — Ohio Security Ins CoBonded — $30,000
- Verified
- August 17, 2026
- Expires
- 2027-07-07
- Phone
- (425) 894-4115
- ✓ L&I License #ACCURML765JS — verify at state registryInsured — Federated Mutual Ins CoBonded — $15,000
- Verified
- August 17, 2026
- Expires
- 2028-05-19
- Phone
- (206) 644-4200
- Verified
- August 17, 2026
- Expires
- 2027-09-02
- Phone
- (206) 354-0772
- ✓ L&I License #ADVANES100K9 — verify at state registryInsured — Farmers Ins ExchangeBonded — $15,000
- Verified
- August 17, 2026
- Expires
- 2028-05-21
- Phone
- (206) 241-7930
- ✓ L&I License #AMBIEAH822BD — verify at state registryInsured — Midvale Indemnity CompBonded — $15,000
- Verified
- August 17, 2026
- Expires
- 2028-01-05
- Phone
- (206) 364-1965
- ✓ L&I License #APOLLL*751N9 — verify at state registryInsured — Third Coast Insurance CompanyBonded — $15,000
- Verified
- August 17, 2026
- Expires
- 2027-08-29
- Phone
- (206) 707-5932
- Verified
- August 17, 2026
- Expires
- 2027-01-29
- Phone
- (206) 200-9134
- ✓ L&I License #CLOUD9H773CA — verify at state registryInsured — General Ins Co of AmericaBonded — $15,000
- Verified
- August 17, 2026
- Expires
- 2027-02-02
- Phone
- (310) 421-6535
Compare the top 6 at a glance
| Company | License | Insurance on file | Bond |
|---|---|---|---|
| Energy Technologies LLC | #ENERGTL916K1 | Current | $30,000 |
| Accurate Mechanical LLC | #ACCURML765JS | Current | $15,000 |
| Ace Hvac Service LLC | #ACEHVHS797OT | Current | $15,000 |
| Advanced Energy Savers Inc. | #ADVANES100K9 | Current | $15,000 |
| Ambient Air Heating LLC | #AMBIEAH822BD | Current | $15,000 |
| Apollonius LLC | #APOLLL*751N9 | Current | $15,000 |