Licensed HVAC contractors in Wilmington, Los Angeles, CA
4 HVAC contractors hold an active licence on the Contractors State License Board (CSLB) register in Wilmington, checked 3 Nov 2026: 3 licensed 10 years or more, 100% bonded and none with a complaint or board disclosure on record. Ranked by a published formula; nobody pays to move up.
- Active licences
- 4
- Median time licensed
- 15.5 yrs
- Bonded
- 100%
- EPA Lead-Safe
- 0
- Google reviews
- 732
Filled tags sit at the business's Google location; hollow tags show its mailing ZIP code only. Each tag is the Theo Pros score.
Ranked list
- 1
Urso Air Systems Inc
- Licence active
- Bonded
- Workers' comp
- 2

Quality Refrigeration Company Inc
- Licence active
- Bonded
- Workers' comp
- 3
Salas Heating & Air Conditioning
- Licence active
- Bonded
- Workers' comp
- 4
Harbor Mechanical LLC
- Licence active
- Bonded
- Workers' comp
Questions people ask about HVAC contractors in Wilmington
How many licensed HVAC contractors are in Wilmington?
4 HVAC contractors hold an active Contractors State License Board (CSLB) licence with a mailing address in Wilmington, checked on 3 November 2026. 3 of them have been licensed for 10 years or more.
Does a HVAC contractor need a licence in California?
Yes, when the whole job, labour and materials, costs $1,000 or more or needs a permit. Below that, California's minor-work exemption (B&P Code 7048) applies, but only if they work alone. Look for an active C-20 licence.
How do I check a HVAC contractor's licence in Wilmington?
Ask for the licence number and look it up on the CSLB website, or search this page. Every HVAC contractor listed here was matched to an active licence on the CSLB register.
Which HVAC contractors rank highest in Wilmington?
By our published formula (years licensed, complaint record, bond and insurance, and Google reviews), the top three are Urso Air Systems Inc (91), Quality Refrigeration Company Inc (91), Salas Heating & Air Conditioning (58). Paying or claiming a listing never changes the order.
How much do HVAC contractors charge in Wilmington?
HVAC contractors in the Los Angeles-Long Beach-Anaheim metro earn a median $35.49 an hour (BLS, May 2025); contractors typically bill about twice the wage to cover insurance, overhead and profit.
Do I need a lead-safe certified HVAC contractor in Wilmington?
If your home was built before 1978 and the work disturbs paint, yes: federal law requires an EPA Lead-Safe certified firm. 70% of homes here were built before 1980 (US Census, ACS 2024 5-year), and 0 of the 4 licensed HVAC contractors listed are certified.