Downspout Installation & Repair in Lansing, MI

Why Downspouts Matter as Much as Gutters

A well-installed gutter run that empties into an undersized, poorly placed, or clogged downspout still leaves you with water pooling near the foundation — one of the most common causes of wet basements and crawlspace moisture in older Lansing-area homes. Getting downspouts right is just as important as the gutter installation itself.

Sizing & Placement

• 2x3-inch downspouts handle most standard residential roof areas; 3x4-inch downspouts are recommended for larger or steeper roofs and high-volume runs
• General guidance is roughly one downspout per 35–40 feet of gutter run, though roof pitch and valley concentration affect this
• Downspouts should discharge at least 4–6 feet away from the foundation, further where grading allows
• Splash blocks or downspout extensions redirect water away from walkways, window wells, and basement entries

Common Downspout Repairs

• Reattaching or replacing separated downspout sections
• Clearing clogs at elbows, a frequent point for debris to catch and back up
• Repairing or replacing crushed sections, often from vehicles, snow plows, or ladders
• Adding or repairing underground drain extensions that carry water further from the home
• Re-securing straps and brackets pulling away from siding

Signs Your Downspouts Need Attention

Water pooling at the base of a downspout during rain, visible gaps at elbow joints, and staining or erosion in the soil directly below a downspout outlet are all signs it's time for a look. If your basement or crawlspace has ever had a musty smell or damp walls after a heavy rain, downspout placement is one of the first things worth checking — see our post on how gutters prevent foundation damage.