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A backflow preventer assembly with brass valves and test cocks installed on an outdoor commercial water line, clean landscaping

Plumbing · Backflow Prevention and Testing

Backflow Prevention and Testing in Nashville

We install, repair and test backflow preventers on irrigation, fire and commercial water lines so your drinking water stays protected.

Call us today(629) 276-6322
Get Free EstimateFree Plumbing Tools
  • Best forCross-connection protection
  • WorkInstall, repair, test
  • LinesIrrigation and commercial
  • RecordsTest reports
  • TimingAnnual reminders
  • ToolMaintenance Calendar

About Backflow Prevention and Testing

Keep dirty water from ever flowing backward into your clean supply.

Backflow happens when pressure changes push water the wrong way. A backflow preventer is the one-way guard that protects your drinking water from irrigation systems, boilers and other connections.

We install and service these assemblies and handle the testing many properties need on a regular schedule. Requirements vary by utility, and we help you understand what applies.

Call (629) 276-6322

  • Install, repair and test
  • Irrigation, commercial and fire lines
  • Test reports for your records
  • Reminders for the next test
A macro close-up of a gleaming chrome faucet spout with a single water droplet about to fall, crisp bokeh background of a bright kitchen, shallow depth of field

Who It Is For

A Great Fit If You…

Businesses with irrigation or fire lines

Homeowners with sprinkler systems

Property managers tracking annual tests

How It Works

What Goes Into Backflow Prevention and Testing

Four parts of the job, each explained so you know what to expect.

A backflow preventer assembly with brass valves and test cocks installed on an outdoor commercial water line, clean landscaping
01

What you have

Identify the Assembly

We locate and identify your backflow assembly and its condition.

  • Type
  • Age
  • Location
  • Condition
  • Protection
  • Water Quality
  • Low Maintenance
  • Longevity
  • Value
02

Annual check

Test It

We test the assembly, record the results and note anything that needs repair.

  • Test
  • Record
  • Report
  • Notes
  • Protection
  • Water Quality
  • Low Maintenance
  • Longevity
  • Value
03

Fix

Repair or Replace

Worn parts are repaired and failed assemblies are replaced.

  • Parts
  • Replace
  • Retest
  • Clear
  • Protection
  • Water Quality
  • Low Maintenance
  • Longevity
  • Value
04

Reminders

Stay on Schedule

We help you remember upcoming tests so you stay on track.

  • Reminders
  • Records
  • Utility
  • Notes
  • Protection
  • Water Quality
  • Low Maintenance
  • Longevity
  • Value

How It Scores

Where Backflow Prevention and Testing Shines

Each shape shows how one part of this service performs on five qualities. Tap a name to compare. Scores are our plain-English judgement, not lab ratings.

Identify the AssemblyTest ItRepair or ReplaceStay on ScheduleProtectionWater QualityLow MaintenanceLongevityValue

The Process

How We Work With You

01

Walk the Property

We meet you at the building, look at the system and learn how your business runs.

02

Plan Around Your Hours

We schedule work to limit disruption for tenants, staff and customers.

03

Do the Work

Crews arrive prepared, protect the space and complete the repair or install.

04

Document and Follow Up

You get a clear summary of what was done and what to watch, so your next call is easy.

Free Tool

Maintenance Calendar

Tell us about your home and get a month-by-month plumbing maintenance calendar, from flushing the water heater to winter pipe prep.

Open the Tool

Before and After

See the Difference

Drag the handle to compare. Photos are illustrative.

Before: A basement wall with an old corroded gate valve main shutoff on rusty pipe with drip stains
After: The same basement wall, now with a new brass ball valve shutoff on clean new copper pipe, same angle and same light
BeforeAfter
Old Gate Valve to New Ball Valve ShutoffAn old, stubborn gate valve was replaced with a ball valve that shuts the water off fully.

Photos on this site are illustrative and show typical homes and businesses, not completed Prodigy Plumbing & Drain projects. Every property is reviewed before work or a written estimate, and results depend on the condition of the plumbing. Tools on this site are planning guides, not diagnoses.

Good to Know

Questions About Backflow Prevention and Testing

Still have a question?

Call (629) 276-6322

What is a backflow preventer?

A device that keeps water from flowing backward into your clean water supply.

How often must it be tested?

Testing schedules are set by your local water utility, and we help you understand what applies to you.

Do residential sprinkler systems need one?

It depends on how your irrigation connects to the water supply, and local rules differ. We can look at your setup.

Do you provide the test report?

Yes, for your records and your utility if required.

Free Estimate

Need a Plumber? Let’s Talk.

Tell us what is going on, whether it is a leak, no hot water, a fixture upgrade or a remodel, and we will get back to you quickly. For an emergency, skip the form and call (629) 276-6322 any hour.

Call us today(629) 276-6322

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Prodigy Plumbing & Drain is a plumbing company serving Nashville, Franklin and Middle Tennessee for repairs, water heaters, repiping, fixtures, remodels and emergencies, open 24 hours.

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