Downspout Extensions and Underground Drain Lines in Nashville and Middle Tennessee
Yard Drainage and Grading

Downspout Extensions and Underground Drain Lines

Downspout extensions and underground drain lines that carry roof water far from the foundation, to the street, a pop-up emitter or a drain basin.

A roof sheds a surprising amount of water. A typical house roof can send thousands of gallons toward the foundation in one heavy storm if the downspouts end at the wall. Moving that water ten feet or more away is one of the least expensive ways to cut down on basement and crawl space moisture. Many homes around Nashville have short downspout elbows that dump water at the corner, and burying a drain line is a neater, more durable fix than surface hoses.

We trace each downspout and decide where the water should go. For simple cases, we add sturdy extensions that move water onto a lawn with a slope. For more complete solutions, we dig a trench, run solid pipe from each downspout, join them where it makes sense and carry the water to a pop-up emitter, a drain basin, a dry well or the street where rules allow. We add cleanouts and screens at the downspout to catch leaves. We test each line with water and regrade around the outlet so it does not wash out.

Roof water adds up

A heavy storm sends a lot of water down each downspout.

Buried lines last

Solid pipe is neater and more durable than loose surface hoses.

Emitters and basins

Water is released onto the lawn or into a basin, away from the house.

Cleanouts and screens

Leaves can be cleared without digging up the line.

What is included

  • Downspout trace
  • Trench and solid pipe
  • Emitter or basin outlet
  • Screens and cleanouts
  • Outlet grading
  • Water test
Why it works

What you get with Downspout Extensions and Underground Drain Lines

Each downspout traced

We decide where each stream should go.

Solid buried pipe

Pipe is sized for roof flow and set with a steady slope.

Pop-up emitters

They release water onto the lawn and close when dry.

Screens and cleanouts

Leaves can be cleared without digging.

Outlet protected

The discharge area is graded and stone-lined if needed.

Flow tested

We run water from the gutter to the outlet.

Try it now

Waterproofing Project Timeline Planner

Pick the project and options to see a typical sequence from visit and permits to site work, installation, testing and cleanup.

How it works

Our process, start to finish.

  1. 01

    Call and describe it

    You tell us what you have seen, where and when, and we set a visit that fits your day.

  2. 02

    Inspect and measure

    We walk the outside and inside with a moisture meter, take photos, measure slopes and call for utility marking.

  3. 03

    Plan and approve

    You review the cause, the options and a plain written scope with every line and the schedule before anything is ordered.

  4. 04

    Prepare the site

    We handle permits, protect your property and prepare the work area, from the floor edge to the trench.

  5. 05

    Build and install

    We install drains, pumps, liners or repairs, restore floors and lawns and test every system with water.

  6. 06

    Walk through and care

    We walk the job with you, share a care guide and schedule a first checkup.

Questions

Downspout Extensions and Underground Drain Lines FAQ

How far should downspouts discharge?

Many guides suggest several feet or more from the foundation. We plan based on the slope.

Are buried lines better than hoses?

Buried lines are tidier and last longer, but hoses can be a fast, temporary fix.

Where can the water go?

To a slope, a drain basin or a dry well. Street connections depend on local rules.

Will lines freeze?

Lines that drain fully are less likely to freeze. We set slope for that.

Can I tie all downspouts together?

Often yes, if the pipe is sized for the flow.

Next step

Get your Free Waterproofing Inspection for Downspout Extensions and Underground Drain Lines.

Tell us about your property and we will call you back to set up a visit.

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

Tell us about your project

We will call you back to talk it through and set up a visit.

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

Call NowFree Inspection