(618) 444-9976 24/7 emergency sewer service · St. Clair and Madison counties
Downspout Drains job by Dig N Drain: new underground downspout lines

10 · Downspout Drains

Downspout drains that take roof water somewhere useful

Every inch of rain on a roof has to go somewhere. A buried downspout drain carries it from the gutters to a safe discharge point, instead of dumping it at the foundation or into the sanitary sewer.

Where the water should go

Away from the house, and not into the sewer. Belleville’s wastewater department says a downspout that disappears into the ground is probably connected to the sanitary sewer, calls that an illegal connection, and wants roof water sent to the yard or a storm sewer instead. University of Illinois Extension gives the plain version: keep downspouts clear and make sure they drain away from the home.

A buried line does that out of sight. Each one is laid out from the gutter layout, the grading, the soil and the amount of runoff, with the pipe sized and sloped to a discharge point that will not send the water back toward the foundation or onto a neighbor.

Old drains that stopped working

We also repair existing downspout drains. Leaves and grit pack them, roots crush them, and some were routed into the sewer decades ago. A strip of soggy yard along the house, like the one in the photo here, is often the first sign.

Signs you need one

  • Standing water near the foundation
  • Basement leaks after heavy rain
  • Soil washing away around the house
  • Downspouts emptying at ground level
  • Cracks or shifting in the foundation
  • A damp smell in the basement or crawl space

Talk to the crew

(618) 444-9976

Answered 24/7. Scope and price before any work starts.

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How the job goes

What to expect, step by step

  1. 01Drainage assessment

    Gutters, grading, where the water goes now.

  2. 02Design the run

    Pipe size, slope and a safe discharge point.

  3. 03Install

    Trenched, laid and connected to each downspout.

  4. 04Test and restore

    Water run through it, the ground put back.

Our work

Photos from our own jobs

Soggy, muddy strip of yard along the side of a house where roof water collects
Where roof water was ending up.

Answers

Questions about downspout drains

How much does an underground downspout drain cost?

It depends on how many downspouts are being tied in, how far the water has to travel to a safe discharge point, and what is in the way. We look at the gutters, the grading and where the water goes now, and price the run before any digging starts.

Where should downspouts drain?

Away from the foundation, onto the yard or into a storm sewer, and never into the sanitary sewer. Belleville’s wastewater department calls a downspout tied into the sewer an illegal connection. A buried drain line carries the water to a discharge point that slopes away from your house and your neighbor’s.

Why is my yard soggy next to the house?

Often because a downspout is dumping roof water at the foundation, or an old buried downspout drain is clogged or crushed and the water is surfacing. Grading that tilts toward the house makes it worse. We find where the water is actually coming from before recommending a new line.

What is a downspout drain?

A downspout drain is buried pipe connected to a gutter downspout that carries rainwater away from the foundation to a safe discharge point. Instead of soaking the soil beside your basement walls, the water comes out where the yard can take it, or where it can reach a storm sewer.

Can you fix an old downspout drain that is clogged?

Yes. We clear old downspout drains that leaves and grit have packed, repair or replace sections roots have crushed, and reroute lines that were tied into the sewer or empty in the wrong place. A camera run shows which of those it is before anything is dug up.

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Backed up right now?

Call the crew with the camera and the excavator.

A person answers (618) 444-9976 day or night. Not an emergency? Send the form and we will set a time to run the camera.

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