Your gutters work hard. But if your downspouts release water next to your foundation, they're sending thousands of gallons directly at your home every time it rains.
Most homeowners don't think about where their downspout water goes. It falls off the roof, runs through the gutters, exits the downspout — and lands right next to the foundation.
A typical residential roof sheds between 600 and 1,300 gallons of water for every inch of rainfall. If your downspouts are releasing that water within a few feet of your home, the soil around your foundation is absorbing it all.
That water saturates the soil. Saturated soil creates hydrostatic pressure. Hydrostatic pressure pushes against your foundation wall. Over time, that pressure causes cracks, moisture infiltration, and structural damage.
The fix isn't complicated. Get the water away from the house. That's exactly what downspout extensions and buried drain lines do.
Downspout drainage problems are easy to overlook because the damage builds slowly. These are the warning signs to watch for.
Corners of foundations are vulnerable points. When downspouts deposit water at or near corners repeatedly, the concentrated moisture accelerates soil movement and pressure against the wall. Cracks near corners are a common result.
Mulch washing away, soil eroding, or channels forming in the ground near your downspout outlets are signs that water is hitting the ground with too much force and volume. That same force is being directed at your foundation.
If your basement consistently shows moisture or water after heavy rainfall, check your downspouts first. They are one of the most common and most overlooked causes of basement water problems.
Corners of foundations are vulnerable points. When downspouts deposit water at or near corners repeatedly, the concentrated moisture accelerates soil movement and pressure against the wall. Cracks near corners are a common result.
Splash blocks slow the water down but they don't move it far enough away. Water released on a splash block still ends up in the soil within a few feet of the foundation. A buried drain line moves water 10 to 20 feet away or further — far enough to matter.
If your gutters overflow during heavy rain it means water is bypassing the downspout entirely and falling directly next to the foundation. This is both a gutter problem and a drainage problem. We address the drainage side so the water that does exit the downspout goes where it should.
Depending on your property, your yard, and how far we need to move the water, we'll recommend one or both of these solutions.
A downspout extension attaches directly to your existing downspout and carries water further away from your foundation before releasing it at ground level. Extensions can be rigid or flexible and can be routed along the side of your home or through the yard.
This is a straightforward solution for properties where the water just needs to be moved a few more feet away from the foundation and the discharge point is in a safe location.
A buried drain line connects to your downspout at ground level and carries water underground to a discharge point further away — often 15 to 30 feet from the foundation or to a pop-up emitter at the edge of the yard or street.
This is the preferred solution for properties where surface extensions aren't practical, where the yard needs to stay clear, or where water needs to travel a longer distance to reach a safe discharge point. The line is buried, invisible, and works automatically every time it rains.
The installation process is straightforward and minimally disruptive to your yard.
We look at every downspout on the property, where water is currently discharging, how the yard is graded, and where water needs to go. We map out the best route for each drain line.
We dig a trench from each downspout to the discharge point, lay a solid drain pipe, connect it to the downspout at one end, and install a pop-up emitter or daylight outlet at the other end.
The trench is backfilled and the yard is restored. The only visible parts of the system are the downspout connection at the house and the pop-up emitter at the discharge point. Everything in between is underground.
Extending your downspouts and burying drain lines is one of the most cost-effective drainage improvements you can make to your property.
The installation is straightforward. The system requires no maintenance beyond occasional inspection of the pop-up emitters. And it works silently every time rain hits your roof.
Most homeowners don't realize how much water their gutters collect until they see the numbers. A 2,000 square foot roof sheds roughly 1,200 gallons of water for every inch of rainfall. If that water is currently discharging next to your foundation, it adds up fast.
A buried drain line moves that water to a safe location every single time. No standing water. No saturated soil. No pressure against your foundation walls.
At minimum, downspouts should discharge water at least 6 feet from the foundation. For best results, 10 to 20 feet is ideal. A buried drain line can carry water to the edge of the yard, a storm drain, or a safe discharge point well away from the home.
Yes. Multiple downspouts can be connected to a single underground drain line that routes to one discharge point. This is a common and efficient setup for homes with several downspouts on the same side of the house.
A pop-up emitter is a valve installed at the end of a buried drain line. It stays closed when the system is dry and opens automatically when water flows through the pipe. This keeps debris and pests out of the line while allowing water to discharge freely.
Most downspout extension and buried drain line installations are completed in one day. Homes with many downspouts or complex yard layouts may take two days. We give you a clear timeline at the free consultation.
Water is patient. It presses against your foundation every time it rains. The longer it sits, the more damage it does. A drainage system installed today can protect your home for decades.

Flood Foundation installs exterior drainage systems that protect Cincinnati homes from water damage. We control the water before it reaches your foundation. We're a local Cincinnati company built on one idea — fix the drainage problem outside so it never becomes a basement problem inside. Serving Greater Cincinnati and surrounding areas.