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California contractor license

Kazemi & Associates Constructors

Kazemi & Associates Constructors of Los Angeles holds California license 592633 (B General Building, C39 Roofing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Sep 30, 2027.

Doing business as Waterproofing Systems Corp.

Licensed 36 years, longer than 94% of 2,241 active Los Angeles general contractors.

Active

Kazemi & Associates Constructors, Los Angeles

License
592633
Class
B General Building; C39 Roofing
Expires
Sep 30, 2027
Bond
$25,000
Workers' comp
Employee leasing to Apr 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
$25,000Philadelphia Indemnity Insurance Company, from Oct 2, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Employee leasingAce American Insurance Company, from Apr 1, 2026, to Apr 1, 2027

Who is on this license?

Responsible managing officer, CEO and president
Ron M. KazemiSince Apr 24, 1990

What work does this license cover?

Issued Apr 24, 1990. Reissued Sep 14, 2001.

Which other Los Angeles businesses hold B General Building?

General Contractors in Los AngelesCalifornia general contractorsRoofing Contractors in Los AngelesCalifornia roofing 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)