Downspout Drainage & Tie-Ins
Underground downspout extensions that carry roof water far from your foundation — eliminating the #1 cause of basement moisture.
Improper downspout drainage is the most common cause of foundation moisture in Chester County and Delaware County homes. When downspouts discharge at the foundation, roof water saturates the soil and finds its way inside. JHL Drainage Solutions installs underground downspout extensions that carry roof water well away from your foundation.
Our installations run solid pipe underground from each downspout to a pop-up emitter at least 10 feet from the foundation. We install cleanout access points and emitters that close when dry to prevent animal entry and debris accumulation.
Proper downspout routing is often the highest-leverage single improvement for West Chester and Newtown Square homes with recurring basement moisture. We provide free assessments and can integrate downspout tie-ins into broader drainage system designs.
- Underground solid pipe from downspout to discharge point
- Pop-up emitter minimum 10 ft from foundation
- Cleanout access points included
- Eliminates roof water saturation at foundation
- Multiple downspout tie-in capacity
Common Questions
We discharge a minimum of 10 feet from the foundation wall. Pop-up emitters open under flow and close when dry, preventing animal entry and keeping the system clear.
Yes — it’s the most common cause. Downspouts discharging within 2–3 feet of the foundation saturate soil against the wall and drive water inside. Underground tie-ins eliminate this.
A single downspout underground tie-in typically costs $400–$900 depending on run length. Multiple tie-in systems are priced per linear foot. We provide free written estimates.
Downspout Drainage & Tie-Ins by Location
Related Services
Perforated pipe and gravel systems that intercept and redirect subsurface groundwater away from your foundation and yard.
Comprehensive yard drainage systems that eliminate pooling water, soggy turf, and surface runoff problems.
Targeted solutions for standing water in yards, driveways, and low-lying areas that refuse to drain.
Ready to Fix Your Drainage Problem?
We'll inspect your property and give you a detailed estimate. No obligation.