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California contractor license

Astra General Electrical Work Inc

Astra General Electrical Work Inc of Antioch holds California license 671582 (C10 Electrical). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jan 31, 2027.

Licensed 33 years, longer than 90% of 33 active Antioch electrical contractors.

Active

Astra General Electrical Work Inc, Antioch

License
671582
Class
C10 Electrical
Expires
Jan 31, 2027
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
$25,000North River Insurance Company (The), from Apr 17, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Exemptfrom Jan 18, 2025

Who is on this license?

Officer
Darin H. TaraSince Jan 19, 2001
Officer
Mariusz M. KobierskiSince Jan 19, 2001
Officer
Elzbieta KobierskiSince Apr 20, 2011
Responsible managing officer, CEO and president
Bronislaw M. KobierskiSince May 19, 1993

What work does this license cover?

Issued May 19, 1993. Reissued Jan 19, 2001.

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 Antioch businesses hold C10 Electrical?

California electrical 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)