Skip to content
State files updated Oct 31, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Ambient Heating And Air

California contractor license

Ambient Heating And Air

Ambient Heating And Air of Livermore holds California license 837170 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C38 Refrigeration). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Nov 30, 2026.

Doing business as Ambient Temperature Control Inc.

Licensed 22 years, longer than 59% of 44 active Livermore HVAC contractors.

Active

  • License ends Nov 30, 2026 (30 days)

Ambient Heating And Air, Livermore

License
837170
Class
C20 Warm-Air Heating, Ventilating and Air-Conditioning; C38 Refrigeration
Expires
Nov 30, 2026
Bond
$25,000
Workers' comp
Insured to Apr 3, 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
$25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredPie Insurance Company (The), from Apr 3, 2025, to Apr 3, 2027

Who is on this license?

Officer
Elizabeth H. CamilleriSince Nov 6, 2008
Responsible managing officer, CEO and president
Chad A. CamilleriSince Apr 27, 2004

What work does this license cover?

Issued Apr 27, 2004. Reissued Nov 6, 2008.

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

California 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, Oct 31, 2026)
  2. Contractors State License Board (CSLB)