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California contractor license

Air Tro Incorporated

Air Tro Incorporated of Monrovia holds California license 258228 (B General Building, C10 Electrical, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C38 Refrigeration). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Dec 31, 2026.

Licensed 57 years, longer than 95% of 22 active Monrovia electrical contractors.

Active

  • Workers' comp ends Nov 1, 2026 (3 days)

Air Tro Incorporated, Monrovia

License
258228
Class
B General Building; C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration
Expires
Dec 31, 2026
Bond
$25,000
Workers' comp
Insured to Nov 1, 2026

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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
InsuredInsurance Company Of The West, from Nov 1, 2025, to Nov 1, 2026

Who is on this license?

Officer
James J. HunterSince Dec 22, 1986
Responsible managing officer
Donn L. CappsSince Apr 10, 1981
Responsible managing officer
Anthony J. HelbingSince Dec 11, 1990
Responsible managing officer, CEO and president
Robert G. HelbingSince Dec 11, 1990
Responsible managing employee
Kevin J. BerrySince May 26, 1994

What work does this license cover?

Issued Jun 24, 1969.

Which other Monrovia businesses hold B General Building?

California electrical contractorsCalifornia plumbing contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. 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.
  6. 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

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. 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.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 29, 2026)
  2. Contractors State License Board (CSLB)