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State files updated Oct 29, 2026
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California contractor license

General Mastrix Construction Inc

General Mastrix Construction Inc of Corona holds California license 915891 (A General Engineering, B General Building, C39 Roofing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires May 31, 2028.

Licensed 18 years, longer than 67% of 426 active Corona general contractors.

Active

General Mastrix Construction Inc, Corona

License
915891
Class
A General Engineering; B General Building; C39 Roofing
Expires
May 31, 2028
Bond
$25,000
Workers' comp
Insured to Jan 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
$25,000Ohio Casualty Insurance Company (The), from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredApplied Underwriters Captive Risk Assurance Company Inc, from Jan 1, 2026, to Jan 1, 2027

Who is on this license?

Officer
Allen G. Ramirez-MendezSince Aug 12, 2019
Responsible managing officer
Craig J. DeleoSince May 20, 2008
CEO and president
Gustavo S. MendezSince May 20, 2008

What work does this license cover?

Issued May 20, 2008.

Which other Corona businesses hold A General Engineering?

General Contractors in CoronaCalifornia general 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 29, 2026)
  2. Contractors State License Board (CSLB)