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California contractor license

Caltron Construction Inc

Caltron Construction Inc of Los Angeles holds California license 725052 (A General Engineering, B General Building, C10 Electrical, C17 Glazing, C36 Plumbing, C51 Structural Steel, C53 Swimming Pool). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jul 31, 2028.

Licensed 30 years, longer than 88% of 483 active Los Angeles electrical contractors.

Active

Caltron Construction Inc, Los Angeles

  • Bond has a cancellation date on file: Nov 11, 2026.
License
725052
Class
A General Engineering; B General Building; C10 Electrical; C17 Glazing; C36 Plumbing; C51 Structural Steel; C53 Swimming Pool
Expires
Jul 31, 2028
Bond
$25,000
Workers' comp
Employee leasing to Nov 1, 2027

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
$25,000Old Republic Surety Company, from Jan 1, 2023, continuous, cancel date Nov 11, 2026
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Employee leasingIndemnity Insurance Company Of North America, from Nov 1, 2026, to Nov 1, 2027

Who is on this license?

Responsible managing officer, CEO and president
Ruben GamerbergSince Jan 5, 2005

What work does this license cover?

Issued Jul 15, 1996.

A cancellation date is on file for a bond or policy. Ask for a current certificate before work starts.

Which other Los Angeles businesses hold A General Engineering?

Electrical Contractors in Los AngelesCalifornia electrical contractorsPlumbing Contractors in Los AngelesCalifornia plumbing 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)