Skip to content
State files updated Oct 29, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Advanced Masonry & Concrete

California contractor license

Advanced Masonry & Concrete

Advanced Masonry & Concrete of Hacienda Heights holds California license 644495 (C8 Concrete, C29 Masonry). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Feb 28, 2027.

Doing business as A M C Concrete Inc.

Active

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

Advanced Masonry & Concrete, Hacienda Heights

License
644495
Class
C8 Concrete; C29 Masonry
Expires
Feb 28, 2027
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
$25,000Atlantic Specialty Insurance Company, from Sep 1, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredPie Insurance Company (The), from Nov 1, 2024, to Nov 1, 2026

Who is on this license?

Officer
Paula M. GroomsSince Feb 19, 2015
Responsible managing officer, CEO and president
Walter R. GroomsSince May 8, 1992

What work does this license cover?

Issued May 8, 1992. Inactive May 8, 1992 to Sep 9, 1992. Reissued Feb 19, 2015.

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)