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California contractor license

Wagner Mechanical Inc

Wagner Mechanical Inc of Linden holds California license 507799 (C4 Boiler, Hot Water Heating and Steam Fitting, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C38 Refrigeration). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Mar 31, 2028.

Licensed 39 years, longer than 93% of 9,636 active California plumbing contractors.

Active

Wagner Mechanical Inc, Linden

  • Workers' comp on file ended Oct 1, 2026.
License
507799
Class
C4 Boiler, Hot Water Heating and Steam Fitting; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration
Expires
Mar 31, 2028
Bond
$25,000
Workers' comp
Insured to Oct 1, 2026

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 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 30, 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
InsuredInsurance Company Of The West, from Oct 1, 2025, to Oct 1, 2026

Who is on this license?

Officer
Heather M. StackSince Feb 14, 2023
Responsible managing officer
Jeffrey W. WagnerSince Mar 20, 1987
Responsible managing officer, CEO and president
Daniel SolisSince Feb 14, 2023

What work does this license cover?

Issued Mar 20, 1987. Reactivated Jun 13, 1991. Reissued Mar 15, 2000.

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, Oct 30, 2026)
  2. Contractors State License Board (CSLB)