Downspout Extension Installation

Our team offers professional downspout extension installation services for homeowners in Plymouth and the surrounding areas in Indiana. 

What Is a Downspout Extension?

A downspout extension is a simple but highly effective way to improve your home’s drainage system. Installed at the bottom of your existing gutters, it redirects rainwater at least 6–10 feet away from the foundation — sometimes farther.

We can install also underground downspout extensions, which hide the drainage pipes below the surface. This creates a clean, uncluttered look in your yard while still protecting your home from water damage.

Above Ground Downspout Extension

Why You Need Downspout Extensions

Water is one of the biggest threats to your foundation. When it collects near your home, it can:

  • Cause soil expansion and contraction that puts pressure on basement walls
  • Lead to cracks and leaks that let water inside
  • Erode landscaping and topsoil around your home
  • Damage patios, walkways, and driveways near the downspout discharge area

By installing a properly designed downspout extension system, you can prevent these issues before they start — saving yourself from costly repairs later.

Underground Downspout Extension

Our Installation Process

We follow a proven process to ensure your new downspout system is effective and built to last:

  1. Inspection & Planning – We inspect your property, identify problem areas, and design a solution that fits your yard’s layout.
  2. Utility Marking – All utilities are located and marked to ensure safe digging.
  3. Trenching – A precise trench is dug to route the buried drain pipe.
  4. Installation – The downspout extension is connected, pitched correctly, and routed to a safe discharge point.
  5. Finishing Touches – Trenches are backfilled, sod or landscaping is restored, and the area is cleaned up.

Most projects can be completed in just a few hours, minimizing disruption to your home and yard.

Benefits of Underground Downspout Extensions

Choosing a buried system gives you:

  • Better Curb Appeal – No more unsightly above-ground extensions.
  • More Usable Yard Space – No tripping hazards or lawn obstacles.
  • Improved Water Management – Directs water to a proper drainage area, away from your foundation.
  • Long-Term Protection – A permanent solution to recurring water problems.

Schedule Your Free Downspout Extension Estimate

Don’t wait for foundation cracks or basement leaks to tell you there’s a problem. Protect your home now with a professionally installed downspout extension from A&M Waterproofing & Foundation Repair.

Call us today at 574-349-6185 or click the button below to schedule your free consultation with our experts!

Frequently Asked Questions About Downspout Extensions

Ideally, a downspout extension should carry water at least 6 to 10 feet away from your foundation. This prevents water from pooling near your home, which can lead to soil expansion, foundation cracks, and basement leaks. If your property has a slope, the extension should discharge water in a location that drains naturally away from the house.

Above-ground extensions are typically flexible plastic tubes or metal attachments that sit on top of your lawn. Underground downspout extensions are buried beneath the surface, connected to your downspouts, and routed to a safe drainage area. Underground systems are more durable, look cleaner, and are less likely to be damaged by lawn equipment or foot traffic.

Yes, but maintenance is simple. We recommend inspecting your gutters and downspouts twice a year to make sure they are free of leaves, debris, and clogs. Keeping the system clear ensures water flows properly and prevents backups that could flood your yard or basement

Signs you may need downspout extension installation include:

  • Water pooling near your foundation after rain
  • Basement leaks or dampness
  • Erosion or washed-out landscaping near downspouts
  • Cracks forming in basement walls or slab floors

If you notice any of these, it’s a good idea to schedule a free inspection before the damage worsens.

Our systems are designed to route water to a safe discharge point — often a pop-up emitter, yard drain, or naturally sloped area. This keeps water away from your home and prevents it from flowing back toward the foundation.