Window Wells Filling With Water?
What Is Really Causing It
Window wells are a common issue we see on both newer homes and older properties throughout Lower Makefield and Bucks County. The good news is that most window well problems are very fixable. The key is identifying which issue you are actually dealing with before jumping to a solution.
From years of experience, there are typically three main causes.
1. The Window Well Is Set Too Low
The most common issue is simple grading. Over time, mulch and soil build up around the foundation. In some cases, the window well was originally installed too low. When the top of the window well sits below the surrounding grade, water does exactly what gravity tells it to do. It runs straight into the well instead of away from it.
When that happens, the well fills with water and eventually leaks through the window.
This is usually a straightforward fix. The window well is removed, raised to the proper height, and the surrounding soil is regraded so water sheds away from the house. Once corrected properly, the issue does not return.
2. The Window Well Is Not Properly Attached to the Foundation
On many older homes, the window well was never securely fastened to the foundation. Over time, water begins to seep in around the sides.
This tells us there is water collecting along the foundation wall itself. The solution involves removing the window well, excavating around it, properly securing it to the foundation, and sealing it correctly. Once it is attached and backfilled with proper grading, the water intrusion stops.
This is not typically a major structural problem. It is simply a matter of correcting installation and managing the surrounding soil properly.
3. Groundwater and Poor Overall Drainage
The third issue is more involved. Sometimes the problem is not the window well at all. It is the overall drainage pattern of the property.
In certain areas of Lower Makefield, we deal with clay heavy soil and higher water tables. Over the years, grading shifts and drainage patterns change. When that happens, groundwater can rise from below and push up into the window well from underneath.
This is the most costly repair because it requires more than just adjusting the well. The window well must be removed, the area regraded, and proper drainage installed. That may include a French drain or a surface drainage system to redirect water away from the foundation.
In these cases, the issue is not isolated to one window well. It is a property wide drainage concern that needs to be addressed correctly.
The Key Is Proper Diagnosis
Every one of these situations can be fixed. The mistake many homeowners make is assuming all window well problems are the same.
They are not.
Before any work begins, we evaluate how water is moving across the property, how it is interacting with the foundation, and whether the issue is surface water, installation related, or groundwater pressure.
Once you identify the real cause, the solution becomes clear.
If your window wells are filling with water after heavy rain in Lower Makefield or surrounding Bucks County communities, it may be time to evaluate the drainage around your home, not just the well itself.