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California contractor license

Mr Rooter Plumbing

Mr Rooter Plumbing of San Diego holds California license 978380 (C36 Plumbing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Oct 31, 2028.

Doing business as M J Services Inc.

Licensed 13 years, longer than 59% of 308 active San Diego plumbing contractors.

Active

Mr Rooter Plumbing, San Diego

License
978380
Class
C36 Plumbing
Expires
Oct 31, 2028
Bond
$25,000
Workers' comp
Employee leasing to Jul 1, 2027

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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
Employee leasingA I U Insurance Company, from Jul 1, 2026, to Jul 1, 2027

Who is on this license?

Officer
James M. LeeSince Oct 30, 2012
Responsible managing officer, CEO and president
Michael S. LeeSince Oct 30, 2012

What work does this license cover?

Issued Oct 30, 2012.

What other licenses does this business hold?

6 more on the CSLB file under the same name.

Which other San Diego businesses hold C36 Plumbing?

Plumbing Contractors in San DiegoCalifornia 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 29, 2026)
  2. Contractors State License Board (CSLB)