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California contractor license

Atlas Mechanical Inc

Atlas Mechanical Inc of San Diego holds California license 622960 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Jul 31, 2027.

Licensed 35 years, longer than 92% of 308 active San Diego plumbing contractors.

Active

Atlas Mechanical Inc, San Diego

License
622960
Class
C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
Expires
Jul 31, 2027
Bond
$25,000
Workers' comp
Insured to Apr 1, 2027

CSLB file dated Oct 31, 2026

From the CSLB file dated Oct 31, 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 31, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Western Surety Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredMiddlesex Insurance Company, from Apr 1, 2021, to Apr 1, 2027

Who is on this license?

Officer
Semyon ShekhterSince Jul 15, 1991
Responsible managing officer, CEO and president
Sergey V. LevinsonSince Jun 8, 2001

What work does this license cover?

Issued Jul 15, 1991.

Which other San Diego businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?

Plumbing Contractors in San DiegoCalifornia plumbing contractorsHVAC Contractors in San DiegoCalifornia 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 31, 2026)
  2. Contractors State License Board (CSLB)