Before you call

  • I have stopped all water use in the house.
  • I know which drains are affected and where water came up.
  • I know where the outdoor cleanout is, or that there is none.
  • I have photos of the backup.
  • I have a pen and paper to write down names and numbers.

On the call

  • Got the contractor's CSLB license number.
  • Asked whether an employee or a subcontractor will come.
  • Asked how the visit is priced, including after-hours.
  • Asked whether a camera inspection is included.
  • Asked what happens if the line cannot be cleared or a tool gets stuck.

Check the license in two minutes

  1. Open the CSLB site

    Go to cslb.ca.gov and use the license lookup.

  2. Enter the number

    Search by license number rather than business name to avoid mix-ups.

  3. Read the status

    Look for an active license and a classification that fits the work.

  4. Compare names

    The name on the license should match the business that will invoice you.

On site, before work starts

  • Price or pricing method written down and agreed.
  • Access point and method explained.
  • Agreed that I can see what comes out and the camera screen.
  • Agreed on who cleans up the work area.

Before a larger repair

  • I have the camera video and know where each defect is.
  • I have the scope, method, length of line and restoration in writing.
  • I know whether a City of Fullerton permit is needed and who pulls it.
  • I have considered a second opinion for a full replacement.
  • I know what happens if more damage is found once work begins.

Red flags worth pausing on

  • IfNo license number offered when askedThenAsk again, and look it up before work starts.
  • IfPrice only given verbally for a large repairThenAsk for it in writing.
  • IfPressure to replace the whole line immediatelyThenAsk to see the footage and take time for a second opinion once flow is restored.

Common questions

What license classification should a sewer plumber have?

Check the classification on the CSLB lookup and ask the contractor why it fits the job if you are unsure.

Is a written quote necessary for an emergency clearing?

Even a short written note of the price or pricing method before work begins avoids misunderstandings.

Can I hire someone who is not licensed for small jobs?

California has rules about when a license is required. For main line work, choosing a licensed contractor is the safer path.

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