Best Licensed HVAC Contractors in Lathrop, CA
5 HVAC contractors registered in Lathrop hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by years licensed.
- 177 active C-20 heating and air conditioning licenses in San Joaquin County; 5 registered in Lathrop
- California requires workers' compensation cover for C-20 licensees: 5 of Lathrop's 5 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Lathrop: 3 years
- Longest Lathrop licensure: since 2003
- 16 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2027-12-31
- Phone
- (209) 482-6267
- Verified
- August 17, 2026
- Licensed since
- 2017
- Expires
- 2027-03-31
- Phone
- (209) 815-7674
- Verified
- August 17, 2026
- Licensed since
- 2023
- Expires
- 2027-06-30
- Phone
- (209) 427-9336
- Verified
- August 17, 2026
- Licensed since
- 2024
- Expires
- 2028-06-30
- Phone
- (925) 844-4221
- Verified
- August 17, 2026
- Licensed since
- 2026
- Expires
- 2028-02-29
- Phone
- (209) 305-8860
Compare the top 5 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| L J Roman's Heating & Air Inc. | #830034 | On file | 2003 |
| Medel Air Pro Heating & Air | #1025268 | On file | 2017 |
| Dlo Heating And Air Conditioning | #1105826 | On file | 2023 |
| Wm Universal Projects Inc. DBA Universal Heating & Cooling | #1122355 | On file | 2024 |
| Severson Heating & Air Inc. | #1150194 | On file | 2026 |
San Joaquin County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 177 active C-20 heating and air conditioning licenses in San Joaquin County, 5 of them registered in Lathrop. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Lathrop license has been held 3 years, and the longest-standing one dates to 2003. California law requires workers' compensation cover for C-20 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 5 of Lathrop's 5 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 177 of the county's 177 licenses carry the same $25,000 bond California sets by statute. 16 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
HVAC Contractors in Lathrop: common questions
How many licensed HVAC contractors are there in Lathrop?
5 active C-20 heating and air conditioning licenses are registered in Lathrop, out of 177 across San Joaquin County. 5 Lathrop-registered companies passed our license verification, and all 5 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license HVAC contractors?
Yes. California licenses contractors by classification, and C-20 is the CSLB classification that authorises this work. 5 active C-20 heating and air conditioning licenses are registered in Lathrop and 177 across San Joaquin County, the longest-standing issued in 2003. Only CLEAR, unexpired licenses appear here.
How do I check an HVAC contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-20 licensees and 5 of Lathrop's 5 currently carry. 16 San Joaquin County licenses expire within 90 days.