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State files updated Oct 31, 2026
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California contractor license

Armstrong Plumbing Inc

Armstrong Plumbing Inc of Sacramento holds California license 364321 (C16 Fire Protection, C36 Plumbing, C42 Sanitation System). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Sep 30, 2028.

Licensed 48 years, longer than 97% of 149 active Sacramento plumbing contractors.

Active

Armstrong Plumbing Inc, Sacramento

License
364321
Class
C16 Fire Protection; C36 Plumbing; C42 Sanitation System
Expires
Sep 30, 2028
Bond
$25,000
Workers' comp
Insured to Jul 1, 2027

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
$25,000North River Insurance Company (The), from Jun 29, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredEverest National Insurance Company, from Jul 1, 2026, to Jul 1, 2027

Who is on this license?

Officer
Mitchell S. VanceSince Oct 16, 1986
Officer
Marcelle A. FlowersSince Nov 6, 1996
Responsible managing officer
Milton T. VanceSince Oct 16, 1986

What work does this license cover?

Issued Sep 1, 1978.

Which other Sacramento businesses hold C16 Fire Protection?

Plumbing Contractors in SacramentoCalifornia plumbing 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 31, 2026)
  2. Contractors State License Board (CSLB)