Basement window well flooding

Symptoms

• Water pooling in the well after rain
• Water reaching or above the window's bottom edge
• Leaves and debris trapping water in the well
• Musty smell or dampness inside near that window

Likely causes

• CommonClogged or missing well drainMany window wells have a drain to a French drain or gravel bed that gets blocked by dirt and debris over time.
• CommonPoor grading directing water toward the wellGround sloped toward the house channels rain straight into the well.
• PossibleNo window well coverAn uncovered well collects rain, snowmelt, and debris directly.
• Less commonWell liner cracked or gaps at the foundationDamage to the well itself can let groundwater seep in.

What to do

1. Remove leaves, dirt, and debris from the bottom of the well.
2. Locate the drain at the bottom of the well (if one exists) and clear it with a small hand auger or by hand.
3. Check the ground grading around the well from outside; it should slope away from the house, not toward it.
4. Add or extend downspouts and gutters so roof runoff isn't discharging near the well.
5. Install a clear window well cover to keep out rain, leaves, and debris going forward.
6. For a well with no drain at all, consider adding a dry well or connecting it to an existing drainage system.
7. After the next rain, check whether water still collects, and escalate to a waterproofing contractor if it does.

Tools and parts

• Small hand auger (optional)
• Gloves

When to call a pro

Call a basement waterproofing contractor if flooding continues after clearing debris and improving grading, since a proper drain connection may be needed.

Safety