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California contractor license
Thompson Plumbing Heating And Air Conditioning
Thompson Plumbing Heating And Air Conditioning of Oceanside holds California license 974400 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jul 31, 2028.
Doing business as Thompson Heating And Air Conditioning Inc.
Licensed 14 years, longer than 67% of 53 active Oceanside plumbing contractors.
Active
Thompson Plumbing Heating And Air Conditioning, Oceanside
- License
- 974400
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Jul 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Apr 7, 2027
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Arch Insurance Company, from Apr 2, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredWesco Insurance Company, from Apr 7, 2025, to Apr 7, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Garett F. BairdSince Jun 28, 2012
What work does this license cover?
Issued Jun 28, 2012. Reissued Jul 11, 2016.
Which other Oceanside businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?
- H & A Heating And Air IncLicensed since 2007
- Artisan Sheet Metal Co Of Oceanside IncLicensed since 2011
- Major League Comfort SystemsLicensed since 2013
- All Climate Heating & Air IncLicensed since 2013
- Sterling MechanicalLicensed since 2015
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)