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California contractor license

Es Mechanical LLC

Es Mechanical LLC of Mountain House holds California license 1107929 (C20 Warm-Air Heating, Ventilating and Air-Conditioning). The CSLB file dated Oct 28, 2026 lists it as suspended: bond.1 It expires Aug 31, 2027.

Suspended

  • Suspended: bond

Es Mechanical LLC, Mountain House

License
1107929
Class
C20 Warm-Air Heating, Ventilating and Air-Conditioning
Expires
Aug 31, 2027
Bond
$25,000
Workers' comp
Insured to Aug 1, 2027

CSLB file dated Oct 28, 2026

From the CSLB file dated Oct 28, 2026. Not a consumer report; check the board before you hire.

What should you do about a lapsed license?

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

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.

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

Bond
$25,000Merchants Bonding Company (Mutual), from Sep 13, 2026, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredMid-Century Insurance Company, from Aug 1, 2025, to Aug 1, 2027

What work does this license cover?

Issued Aug 1, 2023.

Where are other licensed California contractors listed?

California HVAC contractors

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 28, 2026)
  2. Contractors State License Board (CSLB)