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California contractor license
Livermore Mechanical Inc
Livermore Mechanical Inc of Livermore holds California license 986999 (C20 Warm-Air Heating, Ventilating and Air-Conditioning). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Sep 30, 2027.
Active
- Workers' comp ends Dec 3, 2026 (32 days)
Livermore Mechanical Inc, Livermore
- License
- 986999
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning
- Expires
- Sep 30, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Dec 3, 2026
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
- $25,000Merchants Bonding Company (Mutual), from Sep 1, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredFarmers Insurance Exchange, from Dec 3, 2025, to Dec 3, 2026
Who is on this license?
- Officer
- Heather N. ChartierSince Sep 20, 2013
- Responsible managing officer, CEO and president
- Mark J. ChartierSince Sep 20, 2013
What work does this license cover?
Issued Sep 20, 2013.
Which other Livermore businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?
- Select Mechanical IncLicensed since 2009
- Airteks.Com IncLicensed since 2009
- Kell Mechanical Heating And Air Conditioning IncLicensed since 2014
- Killen Mechanical IncLicensed since 2017
- Vargas Mechanical Services IncLicensed since 2021
What should you check before hiring?
What to ask before you hire
- Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)