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California contractor license

Kinetics Mechanical Service Inc

Kinetics Mechanical Service Inc of Livermore holds California license 753650 (B General Building, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C38 Refrigeration). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Dec 31, 2026.

Licensed 28 years, longer than 54% of 35 active Livermore plumbing contractors.

Active

  • License ends Dec 31, 2026 (60 days)

Kinetics Mechanical Service Inc, Livermore

License
753650
Class
B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration
Expires
Dec 31, 2026
Bond
$25,000
Workers' comp
Insured to Mar 1, 2027

CSLB file dated Nov 1, 2026

From the CSLB file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Liberty Mutual Insurance Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredNational Union Fire Insurance Company Of Pittsburgh, PA, from Mar 1, 2026, to Mar 1, 2027

Who is on this license?

Responsible managing officer, CEO and president, Responsible managing officer
Craig W. KirkSince Oct 30, 2000

What work does this license cover?

Issued Sep 3, 1998. Inactive Oct 1, 2000 to Dec 14, 2000.

What other licenses does this business hold?

Which other Livermore businesses hold B General Building?

California plumbing contractorsCalifornia HVAC 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, Nov 1, 2026)
  2. Contractors State License Board (CSLB)