License and identity

  • Ask for the contractor's CSLB license number.
  • Look it up at cslb.ca.gov and confirm it is active.
  • Check that the business name on the license matches the company you are dealing with.
  • Ask whether the person doing the work is an employee or a subcontractor.
  • Ask whether the company carries the insurance you would expect for work on your property.

Scope and paperwork

  • Get the method in writing: cable cutting, jetting or both.
  • Confirm whether a camera inspection is included.
  • Ask for a copy of any camera footage.
  • Get the price, or how the price is calculated, before work starts.
  • Ask what happens if the cutter cannot get through or damage is found.
  • For repairs, ask about permits and who obtains them.

Red flags to pause on

  • IfNo license number is offered when askedThenDo not proceed until you can verify one at cslb.ca.gov.
  • IfA large repair is pushed before any camera inspectionThenAsk to see footage of the problem first.
  • IfYou are told to decide on a major repair immediatelyThenAsk for the footage and a written quote, then take time to get a second opinion.
  • IfThe scope is only a vague phrase on a receiptThenAsk for a written description of exactly what will be done.

Questions to ask on the phone

  1. Do you clear main sewer lines with root cutters?
  2. Can you run a camera after clearing, and will I get the video?
  3. Is my Fullerton address in your service area?
  4. What information do you need from me before you arrive?
  5. How do you price this kind of job?

After the work

Before the plumber leaves, ask them to show you what came out of the line and, if a camera was used, to walk through the footage. Keep the invoice, the written findings and the video file together with any earlier sewer records.

If a repair was recommended, you now have what you need to request a comparable quote from another licensed plumber.

Common questions

Where do I check a California contractor license?

At cslb.ca.gov, the Contractors State License Board site. You can search by license number or business name.

Is it rude to ask for the license number?

No. Licensed contractors expect it, and checking protects you.

Do I need two quotes for a simple root clearing?

For an urgent backup, one verified licensed plumber is usually fine. For a large repair, a second opinion is worth the time.

General information for Fullerton, not a quote or professional advice. In an emergency, call 911.