Skip to content
State files updated Oct 30, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Tier One Plumbing

California contractor license

Tier One Plumbing

Tier One Plumbing of Los Angeles holds California license 972037 (B General Building, C16 Fire Protection, C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Mar 31, 2028.

Licensed 14 years, longer than 61% of 335 active Los Angeles plumbing contractors.

Active

Tier One Plumbing, Los Angeles

License
972037
Class
B General Building; C16 Fire Protection; C36 Plumbing
Expires
Mar 31, 2028
Bond
$25,000
Workers' comp
Exempt

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 Jul 9, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Exemptfrom Mar 19, 2026

Who is on this license?

Responsible managing officer, CEO and president
Jamie S. LusitaSince Apr 12, 2012

What work does this license cover?

Issued Apr 12, 2012. Inactive Feb 1, 2021 to Jun 25, 2025. Reissued Mar 18, 2016.

The workers' comp exemption means the holder told the CSLB it has no employees. If a crew works on your job, ask for a workers' comp certificate.

Which other Los Angeles businesses hold B General Building?

Plumbing Contractors in Los AngelesCalifornia plumbing contractorsGeneral Contractors in Los AngelesCalifornia 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 30, 2026)
  2. Contractors State License Board (CSLB)