Skip to content
State files updated Oct 29, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Interior Experts General Builders Inc

California contractor license

Interior Experts General Builders Inc

Interior Experts General Builders Inc of Ontario holds California license 638437 (B General Building, C9 Drywall). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires May 31, 2028.

Licensed 34 years, longer than 89% of 234 active Ontario general contractors.

Active

Interior Experts General Builders Inc, Ontario

License
638437
Class
B General Building; C9 Drywall
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
$25,000Philadelphia Indemnity Insurance Company, from Sep 1, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredBenchmark Insurance Company, from Jan 1, 2026, to Jan 1, 2027

Who is on this license?

Officer
Alma C. LopezSince May 7, 2002
Responsible managing officer, CEO and president
Adam LopezSince Feb 25, 1992

What work does this license cover?

Issued Feb 25, 1992. Reissued May 7, 2002.

Which other Ontario businesses hold B General Building?

General Contractors in OntarioCalifornia 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)