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California contractor license

Diversified Thermal Services LLC

Diversified Thermal Services LLC of Anaheim holds California license 609967 (B General Building, C10 Electrical, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C38 Refrigeration). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Feb 28, 2027.

Licensed 35 years, longer than 90% of 164 active Anaheim electrical contractors.

Active

Diversified Thermal Services LLC, Anaheim

License
609967
Class
B General Building; C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C38 Refrigeration
Expires
Feb 28, 2027
Bond
$25,000
Workers' comp
Insured to Apr 1, 2027

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 30, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Harco National Insurance Company, from Feb 3, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredXL Insurance America Inc, from Apr 1, 2026, to Apr 1, 2027

Who is on this license?

Responsible managing employee
Manuel BeltranSince Mar 5, 2019
Responsible managing manager
Craig J. SteinmetzSince Jan 19, 1991

What work does this license cover?

Issued Jan 19, 1991. Reissued Feb 3, 2023.

Which other Anaheim businesses hold B General Building?

Electrical Contractors in AnaheimCalifornia electrical contractorsHVAC Contractors in AnaheimCalifornia HVAC 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 30, 2026)
  2. Contractors State License Board (CSLB)