Gutters & Exterior · 4 min read
Where Should Downspouts Discharge? Protecting Your Foundation
Published
A single downspout can dump over a thousand gallons during a heavy Ohio storm. Where that water lands determines whether your basement stays dry.
Minimum distances
Six feet from the foundation is the working minimum; ten is better on clay soils, which describes most of Miami County. Splash blocks alone rarely achieve either distance.
Underground extensions
Solid PVC buried to daylight is the cleanest solution where grade allows. Avoid corrugated flexible pipe — it silts up and is nearly impossible to clear. Include a cleanout at the downspout connection.
Grading matters too
Soil should slope away from the house at roughly six inches over the first ten feet. Mulch beds that have built up above the foundation line trap water against the wall regardless of how good your gutters are.
Signs your drainage is failing
Efflorescence on basement walls, a musty smell after rain, erosion channels beneath downspout outlets, and settling near the foundation corners.
If any of this applies to your own home, our gutters crews handle it every week, and you can see how we work in your area on our Troy, Ohio roofing page. Inspections and written estimates are free either way — call 937-749-7767.