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State files updated Oct 31, 2026
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California contractor license

United Riggers & Erectors Inc

United Riggers & Erectors Inc of Walnut holds California license 245451 (A General Engineering, B General Building, C8 Concrete, C36 Plumbing, C51 Structural Steel, D21). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Mar 31, 2028.

Licensed 59 years, longer than 99% of 9,636 active California plumbing contractors.

Active

United Riggers & Erectors Inc, Walnut

License
245451
Class
A General Engineering; B General Building; C8 Concrete; C36 Plumbing; C51 Structural Steel; D21
Expires
Mar 31, 2028
Bond
$25,000
Workers' comp
Insured to Jun 1, 2027

CSLB file dated Oct 31, 2026

From the CSLB file dated Oct 31, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check

What bond, insurance and workers' comp are on file?

Bond
$25,000American Contractors Indemnity Company, from Jun 1, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredBitco General Insurance Corporation, from Jun 1, 2026, to Jun 1, 2027

Who is on this license?

Officer
Thomas J. KrussSince Mar 11, 1996
Responsible managing officer, CEO and president
Brian D. KelleySince Jan 13, 1988
Responsible managing officer
Sean P. KelleySince Apr 1, 2014

What work does this license cover?

Issued Nov 3, 1966.

Which other Walnut businesses hold A General Engineering?

California plumbing contractorsGeneral Contractors in WalnutCalifornia 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 31, 2026)
  2. Contractors State License Board (CSLB)