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California contractor license
Air Doctor
Air Doctor of Rohnert Park holds California license 935257 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, D04, D24, D62, D65). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jul 31, 2027.
Doing business as Three Cord Enterprises Inc.
Licensed 17 years, longer than 63% of 7,757 active California HVAC contractors.
Active
Air Doctor, Rohnert Park
- License
- 935257
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; D04; D24; D62; D65
- Expires
- Jul 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Jun 30, 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
- $25,000Atlantic Specialty Insurance Company, from Jun 1, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredHartford Casualty Insurance Company, from Jun 30, 2026, to Jun 30, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Victor I. GuerraSince Jul 8, 2009
- CEO and president
- Laurel A. McCarthySince Jan 26, 2010
What work does this license cover?
Issued Jul 8, 2009.
Which other Rohnert Park businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?
- J M S Mechanical IncLicensed since 2002
- Enviro Heating & Air Conditioning IncLicensed since 2009
- Baier Heating And Air Conditioning IncLicensed since 2015
- Comfort Connection Heating & Air ConditioningLicensed since 2019
- Home Solutions HVACLicensed since 2024
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)