Backwater Valve Installation in Nashville and Middle Tennessee
Plumbing & Protection

Backwater Valve Installation

A one-way valve in your sewer line stops sewage from flowing back into your home when the main surcharges.

During heavy rain or a city main blockage, sewage can flow backward up your lateral and out of the lowest openings in your home, such as basement floor drains, showers and toilets. A backwater valve contains a flap or gate that lets wastewater leave the house but closes when flow reverses, protecting the interior.

Valves need correct placement, access and maintenance. We install them where they protect the fixtures at risk, with an accessible cover so you can inspect and clean them, and we explain how they work, including the one trade-off: when the valve is closed, water used in the house cannot drain until the flow restores.

What is included

  • Evaluation of at-risk fixtures
  • Valve selection and placement
  • Concrete cutting and patching
  • Access cover installation
  • Permit and inspection
  • Maintenance instructions
Before and after

See the transformation.

Drag the handle to compare.

After: a basement utility room with a protected line with an access hatchBefore: a basement utility room with an open trench with an unprotected sewer lineBeforeAfter
Backwater valve installed. From an open trench with an unprotected sewer line to a protected line with an access hatch.
Why it works

What you get with Backwater Valves

Stops reverse flow

A flap closes when the main surcharges.

Protects the basement

Protect floors, belongings and health.

Cheaper than a cleanup

One backup can cost far more than the valve.

Placed correctly

Installed where it protects at-risk fixtures.

Accessible for service

Cleanable and inspectable.

Code-minded installation

Permits and inspections handled.

Try it now

Clog Locator

Tell us which fixtures are slow, gurgling or backing up and watch a cutaway of your home light up where the blockage probably is.

How it works

Our process, start to finish.

  1. 01

    Call and triage

    We ask a few questions, give you immediate tips and send the right equipment.

  2. 02

    Camera inspection

    We look inside the pipe to find the cause, not just the symptom.

  3. 03

    Clear, upfront quote

    You see the findings and approve a price before work begins.

  4. 04

    Clean or repair

    Cable, hydro jetting or repair, with the least disruption to your property.

  5. 05

    Camera verification

    A second camera pass confirms the line is clear and sound.

  6. 06

    Protect and maintain

    We explain what caused it and set up prevention so it does not return.

Questions

Backwater Valves FAQ

Do I need a backwater valve?

It is worth considering if you have a basement or lowest-level fixtures below the street sewer level, or if your area has had backups.

Does a valve need maintenance?

Yes. Inspect and clean it regularly, and have it checked yearly.

Will it stop all backups?

It stops reverse flow from the sewer main, but not clogs inside your own house line.

Does insurance require one?

Some insurers offer discounts. Ask your agent.

Next step

Get your free Backwater Valves estimate.

Tell us what is going on and we will call you back quickly.

Or call (615) 357-7797 to talk now.

Tell us what is going on

We’ll call right back. For emergencies, call us now.

Prefer to talk? Call (615) 357-7797. We never sell your information.

Call NowFree Estimate