Who Do You Call to Have a Backflow Test Done on Your Sprinklers?

This article was created using automation technology and thoroughly fact-checked and edited by HomeAdvisor Editor Ryan Noonan.

If you are deciding who to call for a sprinkler backflow test, hire a certified sprinkler repair professional or a plumber with proper backflow testing certification. Many cities and states mandate testing by certified pros who complete state-approved training and licensure. This is not a DIY task, and attempting it without certification can lead to legal consequences.

Benefits of Hiring a Sprinkler Repair Professional for a Sprinkler Backflow Test

Hiring a certified sprinkler repair professional ensures the test is completed safely and in compliance with city and state rules. These pros receive specialized backflow assembly training and, in some states, must be licensed contractors to obtain certification. They certify your device, report results to authorities, and help keep your irrigation system in good working order. Confirm local testing frequency requirements. Reasons to choose a certified pro:

• Meets city and state testing requirements

• Holds state-approved backflow testing certification

• Can certify the device and report results

• Uses approved tools and calibrated gauges

• Completes testing in 20 to 30 minutes

• Manages safe temporary water shutoff

• Verifies valve operation and pressure

• Helps keep the system in order

• Avoids legal consequences of DIY

• Understands local schedules and rules

If you’re unsure about the certification or experience required, you might want to consider hiring a local plumber to ensure the job is done safely and meets all legal requirements.

Can I Hire a Plumber for a Sprinkler Backflow Test?

You can hire a plumber if they have the required training and certifications for irrigation backflow testing. Some plumbers offer this service; others do not. There are also companies that specialize in backflow prevention testing, as well as sprinkler repair companies with certified testers on staff. Confirm a plumber’s backflow certification before booking so the results can be properly certified and reported to your local authorities.

How Do Professionals Do Sprinkler Backflow Tests?

Certified testers follow a structured process to confirm your device is working correctly and to document compliance.

1. Shut off water temporarily; the test takes about 20 to 30 minutes.

2. Connect state‑approved gauges and tools to the backflow assembly.

3. Measure water pressure and device calibration at the assembly.

4. Open and close valves to verify proper operation across the setup.

5. Confirm the preventer functions correctly under pressure changes.

6. Certify the device and report results to the appropriate authorities.

7. Restore water service and confirm normal operation.

How Much Does a Sprinkler Backflow Test Cost?

Hiring a professional to perform a backflow test on your sprinklers costs between $100 and $250 on average, depending on the size of your sprinkler system. Your location and the experience of the pro also influence the overall price. Always request a full quote including labor, materials, and fees to avoid unexpected expenses.