When a notice arrives, it is tempting to call the first name on a flyer or door hanger. A better starting point is the water supplier itself. Many suppliers, including city utilities, keep a list of testers whose certification they accept and whose reports they will take.
From there, compare a few options on what is included, not just on the headline price. A low test price that excludes report filing, retests or repairs can end up costing more time and money.
Tester certification vs contractor license
Backflow tester certification
- Shows the person is trained to test assemblies.
- Must be a certification the water supplier accepts.
- Applies to the individual doing the test.
- Ask to see it and when it expires.
CSLB contractor license
- Needed for plumbing work like replacing assemblies or repiping.
- Applies to the business doing the work.
- Look it up at cslb.ca.gov by license number.
- Check that it is active and covers the work.
Vetting checklist
- The tester appears on the water supplier's accepted list, if it has one.
- Current tester certification, shown on request.
- A CSLB license number for any repair or replacement work, checked at cslb.ca.gov.
- A written price that says what the test includes.
- Clear answer on who files the report and how.
- Clear answer on what happens and what it costs if the device fails.
- Names of the people who will actually be on site.
Comparing quotes fairly
| Item | Ask each tester |
|---|---|
| Test | What does the test fee include? |
| Filing | Is submitting the report to the city included? |
| Trip | Is there a separate trip or travel charge? |
| Repair | How are repairs priced, and are parts extra? |
| Retest | Is the retest after a repair included? |
| Multiple devices | Is there a different rate for more than one device on a visit? |
Questions to ask on the first call
- Are you on the accepted tester list for my water supplier?
- Can you send your certification details and CSLB license number?
- Will an employee or a subcontractor do the work?
- Will I get a copy of the report with the readings?
- If the device fails, can you repair it on the same visit?
Common questions
Does the city do the testing itself?
Usually the owner hires a certified tester, and the supplier receives the results. Your notice explains how it works for your device.
Is a plumber automatically a certified backflow tester?
No. Some plumbers hold tester certification and some do not. Ask specifically.
Can I test my own device if I get certified?
Rules on who may test and submit results come from the water supplier. Check with the city.
General information for Fullerton, not a quote or professional advice. In an emergency, call 911.