Skip to content
State files updated Nov 1, 2026
Look up a contractor
MenuClose

Home / License lookup / California / A To Z Plumbing & Heating Services Inc

California contractor license

A To Z Plumbing & Heating Services Inc

A To Z Plumbing & Heating Services Inc of Brentwood holds California license 683883 (B General Building, C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Nov 30, 2027.

Licensed 32 years, longer than 88% of 26 active Brentwood plumbing contractors.

Active

A To Z Plumbing & Heating Services Inc, Brentwood

License
683883
Class
B General Building; C36 Plumbing
Expires
Nov 30, 2027
Bond
$25,000
Workers' comp
Insured to Jun 23, 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
$25,000Nationwide Mutual Insurance Company, from Nov 3, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredHartford Casualty Insurance Company, from Jun 23, 2026, to Jun 23, 2027

Who is on this license?

Responsible managing officer, CEO and president
Mansour M. AziziSince Feb 1, 1994

What work does this license cover?

Issued Feb 1, 1994. Inactive Feb 1, 1994 to Jul 17, 1995. Reissued Nov 3, 2025.

Which other Brentwood businesses hold B General Building?

California plumbing contractorsGeneral Contractors in BrentwoodCalifornia 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, Nov 1, 2026)
  2. Contractors State License Board (CSLB)