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California contractor license

Aaron Plumbing

Aaron Plumbing of Vacaville holds California license 352544 (B General Building, C36 Plumbing, C42 Sanitation System). The CSLB file dated Oct 26, 2026 lists it as active.1 It expires Jul 31, 2028.

Doing business as Amos & Sons Inc.

Licensed 48 years, longer than 95% of 21 active Vacaville plumbing contractors.

Active

Aaron Plumbing, Vacaville

  • Workers' comp on file ended Oct 20, 2026.
License
352544
Class
B General Building; C36 Plumbing; C42 Sanitation System
Expires
Jul 31, 2028
Bond
$25,000
Workers' comp
Insured to Oct 20, 2026

CSLB file dated Oct 26, 2026

What bond, insurance and workers' comp are on file?

Bond
$25,000Nationwide Mutual Insurance Company, from Jun 20, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEmployers Assurance Company, from Oct 20, 2025, to Oct 20, 2026

What work does this license cover?

Issued Mar 14, 1978.

What other licenses does this business hold?

Which other Vacaville businesses hold B General Building?

California plumbing contractorsGeneral Contractors in VacavilleCalifornia general 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, Oct 26, 2026)
  2. Contractors State License Board (CSLB)