Clean Window Wells

Remove debris from basement window wells, check drainage systems, and inspect covers to prevent water intrusion and keep your basement dry.

Why it matters#

Window wells are designed to keep soil away from basement windows while allowing light and emergency egress. But when filled with leaves and debris, they become collection points for water that can leak into your basement—causing flooding, mold growth, foundation damage, and ruined belongings. A few minutes of maintenance prevents thousands in water damage.

What you'll need#

Tools#

• Work gloves
• Small shovel or trowel
• Stiff brush
• Bucket
• Garden hose with spray nozzle

Materials#

• Replacement gravel (optional)
• Spray bottle with dish soap solution

Safety gear#

• Work gloves
• Safety glasses

Steps#

1. Remove the Window Well Cover#

If your wells have covers, remove them first. Most are secured with screws or clips—note how yours attach for reinstallation. Set the cover aside for cleaning and inspection.

2. Clear Large Debris#

Pick out leaves, twigs, trash, and any accumulated organic matter by hand or with a small rake. Window wells are notorious for collecting windblown debris, so expect to find plenty. Drop debris into a bucket rather than onto your lawn.

3. Dig Out Accumulated Soil#

Use a small shovel or trowel to remove built-up dirt and sediment. You want at least 6-8 inches of clearance between the soil/gravel and the bottom of your basement window. Soil level that's too high can allow water to reach the window frame.

4. Check the Drain#

Most window wells have a drain at the bottom connected to your foundation drainage system or a gravel bed. Check that it's visible and not clogged. Pour a bucket of water into the well and watch if it drains within a few minutes. Standing water indicates a blocked drain.

5. Clear a Clogged Drain#

If water doesn't drain, try breaking up the clog with a stick or use a drain snake (plumber's auger) to clear it. Flush with a high-pressure hose nozzle. For persistent clogs, you may need to dig out and replace the gravel bed around the drain.

6. Clean the Window and Well Walls#

Mix dish soap with water in a spray bottle. Scrub the window glass and metal well walls to remove grime, which helps maximize light into your basement. Use a stiff brush for stubborn dirt. Rinse thoroughly with your hose.

7. Treat Rust (Metal Wells)#

If you have metal wells with rust spots, scrub with white vinegar, then apply a rust-inhibiting primer followed by exterior paint designed for metal. This extends the life of the well significantly.

8. Inspect and Replace the Cover#

Check the cover for cracks, warping, or failed clips. Clean it with soap and water. A good cover keeps out rain, debris, snow, and small animals while still allowing emergency egress. Replace damaged covers—they're inexpensive insurance against water problems.

Pro tips#

• Clean window wells quarterly, or at minimum twice yearly (spring and fall). Always check after heavy storms.
• If your wells don't have covers, consider installing them—clear polycarbonate covers keep out debris while allowing light through. They cost $20-75 each.
• Add a 3-4 inch layer of clean gravel at the bottom of the well to improve drainage and prevent mud buildup.

Warnings#

• Don't let snow accumulate in window wells over winter—melting snow creates constant water pressure against basement windows. Shovel them out after storms.
• Be alert for wasps, spiders, or small animals that may have taken shelter in neglected window wells. Approach with caution.

When to call a pro#

Call a basement waterproofing professional or plumber if: you have persistent drainage problems despite clearing the drain, water is actively leaking through basement windows, you notice cracks in the window well wall or foundation, grading around your home slopes toward window wells, or if you'd like to upgrade to better-quality well enclosures.