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California contractor license

Sierra Air Heating & Plumbing

Sierra Air Heating & Plumbing of Reno holds California license 652354 (C2 Insulation and Acoustical, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Aug 31, 2028.

Doing business as Sierra Air Inc.

Licensed 34 years, longer than 88% of 9,564 active California plumbing contractors.

Active

Sierra Air Heating & Plumbing, Reno

License
652354
Class
C2 Insulation and Acoustical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
Expires
Aug 31, 2028
Bond
$25,000
Workers' comp
Insured to Aug 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
$25,000Capitol Indemnity Corporation, from Oct 16, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredSafety National Casualty Corporation, from Aug 1, 2024, to Aug 1, 2027

Who is on this license?

Officer
Naresh J. IdnaniSince Mar 7, 2023
Responsible managing officer
Oscar J. PoortSince May 10, 2023
Responsible managing officer
Jerry S. BellSince Oct 18, 2023
CEO and president
Frank P. DimarcoSince Mar 7, 2023
Responsible managing employee
Derek S. MurraySince May 9, 2023

What work does this license cover?

Issued Aug 14, 1992.

Where are other licensed California contractors listed?

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