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California contractor license

Moore Mechanical Heating And Air Conditioning

Moore Mechanical Heating And Air Conditioning of Dublin holds California license 1085045 (C20 Warm-Air Heating, Ventilating and Air-Conditioning). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Dec 31, 2027.

Doing business as Castleworks Home Services Company.

Active

  • Workers' comp ends Nov 23, 2026 (23 days)

Moore Mechanical Heating And Air Conditioning, Dublin

License
1085045
Class
C20 Warm-Air Heating, Ventilating and Air-Conditioning
Expires
Dec 31, 2027
Bond
$25,000
Workers' comp
Insured to Nov 23, 2026

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
InsuredStonington Insurance Company, from Nov 23, 2025, to Nov 23, 2026

Who is on this license?

Officer
Matthew A. BroullireSince Dec 15, 2021
CEO and president
Frederick P. FreundSince Jan 31, 2024
Responsible managing employee
William P. TassioSince Dec 26, 2024

What work does this license cover?

Issued Dec 15, 2021.

What other licenses does this business hold?

Which other Dublin 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)