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State files updated Oct 27, 2026
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California contractor license

M & J Construction Group LLC

M & J Construction Group LLC of Pomona holds California license 876056 (C36 Plumbing, C39 Roofing). The CSLB file dated Oct 27, 2026 lists it as active.1 It expires May 31, 2028.

Licensed 20 years, longer than 70% of 9,612 active California plumbing contractors.

Active

M & J Construction Group LLC, Pomona

License
876056
Class
C36 Plumbing; C39 Roofing
Expires
May 31, 2028
Bond
$25,000
Workers' comp
Insured to Apr 19, 2027

CSLB file dated Oct 27, 2026

From the CSLB file dated Oct 27, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000Merchants Bonding Company (Mutual), from May 29, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredNational Casualty Company, from Apr 19, 2025, to Apr 19, 2027

Who is on this license?

LLC member
Joe L. ValdezSince May 29, 2024
LLC member
Samantha ValdezSince May 29, 2024
Responsible managing manager
Miguel A. Hernandez CastanedaSince Apr 12, 2006

What work does this license cover?

Issued Apr 12, 2006. Inactive Dec 26, 2013 to May 1, 2022. Reissued May 29, 2024.

Which other Pomona businesses hold C36 Plumbing?

California plumbing contractorsCalifornia 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 27, 2026)
  2. Contractors State License Board (CSLB)