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State files updated Oct 29, 2026
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California contractor license

Bay Circle Construction Inc

Bay Circle Construction Inc of Brentwood holds California license 989491 (A General Engineering). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Jan 31, 2028.

Licensed 12 years, longer than 61% of 124 active Brentwood general contractors.

Active

Bay Circle Construction Inc, Brentwood

License
989491
Class
A General Engineering
Expires
Jan 31, 2028
Bond
$25,000
Workers' comp
Insured to Jan 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
$25,000American Contractors Indemnity Company, from Jan 16, 2024, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredOmaha National Casualty Company, from Jan 1, 2026, to Jan 1, 2027

Who is on this license?

Responsible managing officer, CEO and president
Thomas R. IllingworthSince Jan 9, 2018
CEO and president
Mario A. AlvarezSince Feb 6, 2019

What work does this license cover?

Issued Jan 3, 2014.

Which other Brentwood businesses hold A General Engineering?

General Contractors in BrentwoodCalifornia 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)