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California contractor license
Advanced Air & Vacuum Inc
Advanced Air & Vacuum Inc of El Cajon holds California license 985173 (B General Building, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C60 Welding, D21). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Jul 31, 2027.
Licensed 13 years, longer than 55% of 84 active El Cajon HVAC contractors.
Active
Advanced Air & Vacuum Inc, El Cajon
- License
- 985173
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C60 Welding; D21
- Expires
- Jul 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Jan 8, 2027
CSLB file dated Oct 31, 2026
From the CSLB file dated Oct 31, 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 Oct 31, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredPie Insurance Company (The), from Jan 8, 2026, to Jan 8, 2027
Who is on this license?
- Responsible managing officer
- Joseph J. VanderbiltSince Jun 6, 2019
- Responsible managing employee
- Michael P. DidonatoSince May 6, 2026
What work does this license cover?
Issued Jul 12, 2013.
Which other El Cajon businesses hold B General Building?
- Modern Construction Specialties IncLicensed since 2013
- Marcco Flood RestorationLicensed since 2013
- Mr D's Construction Services Of San Diego IncLicensed since 2013
- Global Heating & Air Conditioning IncLicensed since 2013
- S D Concreators IncLicensed since 2014
California HVAC contractorsGeneral Contractors in El CajonCalifornia general contractors
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, Oct 31, 2026)
- Contractors State License Board (CSLB)