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California contractor license

MJJB Environmental Construction

MJJB Environmental Construction of Spring Valley holds California license 1097657 (ASB Asbestos Certification, B General Building, C22 Asbestos Abatement, C36 Plumbing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Oct 31, 2028.

Doing business as MJJB Environmental Inc.

Active

MJJB Environmental Construction, Spring Valley

  • Workers' comp on file ended Oct 27, 2026.
  • Workers' comp has a cancellation date on file: Oct 27, 2026.
License
1097657
Class
ASB Asbestos Certification; B General Building; C22 Asbestos Abatement; C36 Plumbing
Expires
Oct 31, 2028
Bond
$25,000
Workers' comp
Insured to Oct 27, 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
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredState Compensation Insurance Fund, from Mar 27, 2023, to Oct 27, 2026, cancel date Oct 27, 2026

Who is on this license?

Officer
Jordan J. KatzSince Oct 13, 2022
Officer
Joshua S. KatzSince Oct 13, 2022
Officer
Miguel A. GuerreroSince Oct 13, 2022
Responsible managing officer, CEO and president
Benjamin M. SussmanSince Oct 13, 2022
Responsible managing employee
Ralph V. WestSince Jun 27, 2023

What work does this license cover?

Issued Oct 13, 2022.

A cancellation date is on file for a bond or policy. Ask for a current certificate before work starts.

Which other Spring Valley businesses hold ASB Asbestos Certification?

California plumbing contractorsGeneral Contractors in Spring ValleyCalifornia 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)