Best Licensed HVAC Contractors in Napa, CA
20 HVAC contractors registered in Napa hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
How we chose: We identified 20 companies registered in Napa. 20 passed license verification. The 8 below are the top-ranked of those. Our methodology
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- ✓ CSLB License #171534 - look up this number at CSLBInsured - TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICABonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1957
- Expires
- 2028-06-30
- Phone
- (707) 255-1811
- ✓ CSLB License #467256 - look up this number at CSLBInsured - NATIONAL CASUALTY COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1984
- Expires
- 2026-12-31
- Phone
- (707) 252-7227
- ✓ CSLB License #537372 - look up this number at CSLBInsured - AMERICAN CASUALTY COMPANY OF READING PABonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1988
- Expires
- 2028-08-31
- Phone
- (775) 843-7450
- ✓ CSLB License #559498 - look up this number at CSLBInsured - STATE COMPENSATION INSURANCE FUNDBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1989
- Expires
- 2027-03-31
- Phone
- (707) 226-3852
- ✓ CSLB License #612317 - look up this number at CSLBInsured - MARKEL INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1991
- Expires
- 2027-02-28
- Phone
- (707) 252-4328
- ✓ CSLB License #688217 - look up this number at CSLBInsured - PACIFIC COMPENSATION INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1994
- Expires
- 2027-06-30
- Phone
- (707) 254-9352
- ✓ CSLB License #769852 - look up this number at CSLBInsured - MARKEL INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 1999
- Expires
- 2027-10-31
- Phone
- (707) 225-7069
- ✓ CSLB License #783917 - look up this number at CSLBInsured - MARKEL INSURANCE COMPANYBonded - $25,000
- Verified
- August 17, 2026
- Licensed since
- 2000
- Expires
- 2026-09-30
- Phone
- (707) 738-6196
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Bell Products Inc. | #171534 | On file | 1957 |
| Reliable Refrigeration | #467256 | On file | 1984 |
| Berryessa Electronics & Mechanical Services | #537372 | On file | 1988 |
| Sun Heating & Air Conditioning | #559498 | On file | 1989 |
| Steve's Heating & Cooling | #612317 | On file | 1991 |
| Denny's Heating & Air Conditioning LLC | #688217 | On file | 1994 |