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California contractor license

Diversified Concrete Services

Diversified Concrete Services of Riverside holds California license 979378 (B General Building, C8 Concrete, C50 Reinforcing Steel). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Dec 31, 2026.

Doing business as Construction Industry Specialties Of California Inc.

Licensed 13 years, longer than 62% of 635 active Riverside general contractors.

Active

  • Workers' comp ends Dec 10, 2026 (42 days)

Diversified Concrete Services, Riverside

License
979378
Class
B General Building; C8 Concrete; C50 Reinforcing Steel
Expires
Dec 31, 2026
Bond
$25,000
Workers' comp
Insured to Dec 10, 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 Feb 20, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEndurance Assurance Corporation, from Dec 10, 2025, to Dec 10, 2026

Who is on this license?

Responsible managing officer, CEO and president
Ricardo GalvanSince Dec 13, 2012

What work does this license cover?

Issued Dec 13, 2012.

Which other Riverside businesses hold B General Building?

General Contractors in RiversideCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. 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.
  6. 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)