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Masterson Bryan Enterprises

Masterson Bryan Enterprises of Petaluma holds California license 271933 (A General Engineering, B General Building, C4 Boiler, Hot Water Heating and Steam Fitting, C16 Fire Protection, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C34 Pipeline, C36 Plumbing, C42 Sanitation System). The CSLB file dated Oct 26, 2026 lists it as active.1 It expires Nov 30, 2027.

Licensed 55 years, longer than 93% of 29 active Petaluma plumbing contractors.

Active

  • Workers' comp ends Oct 26, 2026 (0 days)

Masterson Bryan Enterprises, Petaluma

License
271933
Class
A General Engineering; B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C34 Pipeline; C36 Plumbing; C42 Sanitation System
Expires
Nov 30, 2027
Bond
$25,000
Workers' comp
Insured to Oct 26, 2026

CSLB file dated Oct 26, 2026

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
InsuredHartford Accident And Indemnity Company, from Oct 26, 2025, to Oct 26, 2026

What work does this license cover?

Issued Oct 20, 1971.

Which other Petaluma businesses hold A General Engineering?

California plumbing contractorsCalifornia 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 26, 2026)
  2. Contractors State License Board (CSLB)