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State files updated Oct 29, 2026
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California contractor license

Alliance Construction Co

Alliance Construction Co of Rancho Cucamonga holds California license 916836 (A General Engineering). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jun 30, 2028.

Licensed 18 years, longer than 70% of 271 active Rancho Cucamonga general contractors.

Active

Alliance Construction Co, Rancho Cucamonga

License
916836
Class
A General Engineering
Expires
Jun 30, 2028
Bond
$25,000
Workers' comp
Exempt

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 Sep 1, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Exemptfrom Jun 4, 2026

Who is on this license?

Responsible managing officer
Greg M. TonkinsonSince Jun 4, 2008

What work does this license cover?

Issued Jun 4, 2008.

The workers' comp exemption means the holder told the CSLB it has no employees. If a crew works on your job, ask for a workers' comp certificate.

Which other Rancho Cucamonga businesses hold A General Engineering?

General Contractors in Rancho CucamongaCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. 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.
  5. 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)