Let’s talk about window wells.
Window wells, especially metal wells, may not look like much, but they’re basement MVP’s. They let in natural light, improve airflow, and help your downstairs space feel more “cozy retreat” and less “dungeon vibes.” But if you’ve ever dealt with window well flooding, you know that things can go from helpful to headache very quickly.
We’re talking about water gushing in through a window broken in by water pressure during a heavy rainstorm, with dissolving drywall, soggy carpets, moldy smells, and repair bills that make you want to hide in your (now very wet) basement. The worst part? It’s totally preventable.
So, if you’re wondering how to keep basement window wells from flooding no matter what Mother Nature throws at you – this post is for you.
Why Do Window Wells Flood in the First Place?
Clogged or Non-Existent Drainage
Many window wells built in the last 20 years or so have a built-in drain that connects to your foundation’s perimeter drain or sump pump. But if that drain’s blocked by dirt, leaves, or debris? Water will back up fast and can easily leak into your basement.
This has also happened in window wells without a drain if there is a bunch of leaves stuck together in the bottom of the well. Keeping your window well clean goes a long way in preventing flooding.
No Cover = Big Problem
Leaving your window well uncovered is basically inviting water, snow, leaves, and wildlife to hang out. When all that junk clogs the drain, water has nowhere to go – except inside your home.
Sloped Ground That Works Against You
If the ground around your house slopes toward your foundation, you’ve got a built-in water slide aimed straight at your window wells. Not ideal.
Wild Weather
We’re seeing more extreme storms and rapid snow melt these days, and your window wells can only handle so much. If the soil is already saturated, that excess water needs somewhere to go – unfortunately, “inside your basement” is often the easiest option.
Overflowing Gutters
The two easiest ways to check your gutters is going out with an umbrella during a downpour to see if any of anything overflows, or get out there with a garden hose when the weather is sunny. Note: green stuff growing out of the gutters is a dead giveaway that something needs to be done.
How to Fix Window Well Flooding (Without Going Full HGTV)
We get it – you’re not trying to become a full-time landscaper. Good news: You don’t have to! These simple steps will help you fix window well flooding and keep your space dry and drama-free.
Install a Window Well Cover
This is step one, folks, and the one that requires the least amount of work from you. A high-quality window well cover keeps out rain, snow, leaves, raccoons – basically anything that doesn’t belong. Go for a clear polycarbonate cover if you still want sunlight or a metal grate with a top cover if you’re prioritizing airflow.
Clear Out the Drain
This one’s fairly easy: take a peek every now and then and remove any debris sitting in your window well drain. Having a cover on your well makes this a one and done. Clean it out once, cover it up, and you are good for a couple of seasons at least. Knowing how to fix window well flooding often starts with simply keeping the drain clear and functional.
If a cleaned out window well still doesn’t drain, take the drain cover off, and check the pipes. Carefully remove any accumulated silt and debris from the pipe, and use caution when getting close to the joint so you don’t accidentally separate anything.
Regrade the Soil
If your lawn slopes toward your house, grab a shovel or hire a landscaper to redirect that water. Grading the soil to slope away from your foundation is one of the top ways to prevent basement window well flooding before it starts.
Add a Layer of Gravel
Make sure the bottom of your window well with 6-8 inches of gravel in it. It’ll help water drain faster and prevent dirt from clogging your drain. It’s a low-cost, high-impact move. It will be a nice touch after you get rid of the trash in the well.For best results, choose out round stones that won’t lock together.
Extend Your Downspouts
If your gutters are dumping water right next to your foundation, that’s a recipe for disaster. Add extensions so that rainwater flows at least 3 to 5 feet away from your home. Two birds, one stone – prevent erosion at the foundation, prevent flooded wells.
Waterproof Your Basement Walls
Waterproof sealants on your basement walls can help create a barrier that stops leaks before they happen. It’s especially useful in older homes for preventing leaks during those monsoon-level rainstorms.
Do Seasonal Check-Ups
Every now and then (especially in the spring and fall), give your window wells a once-over. Remove leaves, check the covers, and make sure everything’s in working order.Also check the caulk seal around your window, and where the well is bolted to the foundation. A little caulk can make a huge difference. These quick inspections can save you major stress down the line.
Wrap-Up: Keep Your Basement Bright and Bone-Dry
Look, basement window well flooding doesn’t have to be your reality. A few smart tweaks – like adding a cover, improving drainage, and keeping things clean – go a long way. Once you know how to keep basement window wells from flooding, you’ll feel way more confident every time it rains.
Need help finding a cover that is made just for your well? Window Well Experts make custom-fit covers that are strong, crystal clear, and built to last. Rain, snow, and flying debris don’t stand a chance.
No more mystery puddles. No more late-night shop-vac missions. Just a dry, happy basement – the way it should be.
