Skip to content
State files updated Oct 28, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Mr Rooter Plumbing

California contractor license

Mr Rooter Plumbing

Mr Rooter Plumbing of Oakland holds California license 453536 (C36 Plumbing, C42 Sanitation System). The CSLB file dated Oct 28, 2026 lists it as active.1 It expires Apr 30, 2028.

Doing business as Ferguson Plumbing Inc.

Licensed 42 years, longer than 92% of 65 active Oakland plumbing contractors.

Active

Mr Rooter Plumbing, Oakland

License
453536
Class
C36 Plumbing; C42 Sanitation System
Expires
Apr 30, 2028
Bond
$25,000
Workers' comp
Employee leasing to Jul 1, 2027

CSLB file dated Oct 28, 2026

From the CSLB file dated Oct 28, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000Federated Mutual Insurance Company, from Jul 10, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Employee leasingA I U Insurance Company, from Jul 1, 2026, to Jul 1, 2027

What work does this license cover?

Issued Mar 12, 1984.

What other licenses does this business hold?

6 more on the CSLB file under the same name.

Which other Oakland businesses hold C36 Plumbing?

California 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 28, 2026)
  2. Contractors State License Board (CSLB)