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State files updated Oct 29, 2026
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California contractor license

Underground Manholes

Underground Manholes of San Bernardino holds California license 659134 (A General Engineering, C42 Sanitation System). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Feb 28, 2027.

Doing business as Underground Builders Inc.

Licensed 33 years, longer than 92% of 201 active San Bernardino general contractors.

Active

Underground Manholes, San Bernardino

License
659134
Class
A General Engineering; C42 Sanitation System
Expires
Feb 28, 2027
Bond
$25,000
Workers' comp
Insured to Jun 11, 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
$25,000North River Insurance Company (The), from Jan 2, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Jun 11, 2014, to Jun 11, 2027

Who is on this license?

Officer
James R. WilliamsSince Oct 25, 2012
Responsible managing officer, CEO and president
Robert J. WilliamsSince Nov 23, 1992
Responsible managing employee
Vincent J. PorchiaSince Apr 5, 2024

What work does this license cover?

Issued Nov 23, 1992. Reissued Feb 19, 2009.

Which other San Bernardino businesses hold A General Engineering?

General Contractors in San BernardinoCalifornia 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)