Basement Window Well Flooding in Spokane

Updated November 12, 2026 · 5 min read

Why a window well fills

A well is a plastic or metal liner set into the ground against the foundation. It exists so that a basement window can have light and air below grade. It also happens to sit in the lowest, most exposed spot on that side of the house.

Nothing is covering it. Rain, snowmelt, pine needles and leaves all fall straight in. Spokane's yards have plenty of conifers and birch, and the debris packs the bottom and blocks whatever drainage the well has.

There is no drain, or the drain has died. Many older homes have wells with nothing below them but soil. Some wells were built with a drain that connects to the footing drain, and those clog with silt over the decades. A drain that connects to a footing system that no longer works is not really a drain at all.

The grade pours water in. If the lawn, a walkway or a driveway tilts toward the well, every storm sends a sheet of runoff over the lip. Wells set too low, with the rim barely above the ground, are the worst offenders.

A downspout is dumping nearby. Roof water that lands within a few feet of a well often ends up inside it. This is one of the most common and cheapest problems to correct.

The ground is frozen or saturated. In late winter, frozen soil sheds water instead of absorbing it. After a long wet spell, saturated soil has nowhere to take more. Gravel base layers that worked fine in a dry August do nothing when the ground around them is full.

The well has pulled away from the wall. Settling and frost can separate the liner from the foundation. Water runs down the gap behind the liner and reaches the window frame from the side.

Signs your window wells are a problem

Look at the wells before you look at the floor.

• Standing water or a layer of silt and muck in the bottom after a storm
• Rust on a metal well, or a liner that has bent inward or separated from the wall
• Wet or stained drywall, paint bubbling, or a dark line below the basement window
• A damp smell or fresh mildew on the wall or carpet near a window
• Rust on window hardware or swollen wood trim
• Water stains on the sill or a small puddle on the floor after rain

A well that fills once a year during a big melt is a warning. Treat it as the same problem that will show up at its worst, with water on your floor.

What to do right now

If a well is full or filling, start with the simple things.

1. Bail it out. Use a bucket or a wet vacuum. A small submersible pump handles a deep well.
2. Clear what is blocking it. Remove leaves, mud and ice. If there is a drain, check that the opening is clear.
3. Move the source. Pull a downspout extension toward the lawn, or shovel snow away from the well edge.
4. Cover it temporarily. A sheet of heavy plastic weighted at the edges is better than leaving a well open during a storm. Never block an escape window in a bedroom.
5. Check indoors. Feel the wall under the window and look at the carpet edge. If a wall is wet, pull furniture away and photograph the damage.
6. Keep power in mind. Water near outlets calls for turning off that circuit, but only if you can reach the panel without stepping in water.

Permanent fixes that work

Covers

A well cover keeps most of the water out in the first place. Clear polycarbonate domes let light through and shed rain and snow. Pick one that fits tightly against the foundation and the ground, because a loose cover lets wind-driven water slip underneath. Bedroom escape windows need a cover that opens from the inside with no tools.

Drains and gravel

A functional well has a base of washed gravel several inches deep, and ideally a drain that carries water to a sump, a dry well or daylight. A plumber or foundation contractor can tie a drain into the footing system when it is working, or run a separate line when it is not. Gravel alone helps in gravelly soil, and does little in clay.

Liners and sealing

If the liner has separated from the wall, a contractor can reset it and seal the joint with a masonry-safe sealant. Replacing a rusted liner is usually simple. Resetting a well so the rim sits higher than the surrounding grade adds protection.

Regrading and downspouts

Fix the slope so that water runs away from the wells and the house. Downspouts should discharge well beyond the foundation. These changes cost little compared with the damage they prevent, and they help with every other wet spot around the house too. Our post on spring snowmelt and basement flooding covers the grading and downspout details in depth.

The window itself

Replace failed seals and rotted frames. A window that leaks only when the well is full usually leaks because the well is full, so fix the well first and then see what remains.

Spokane specifics

Older neighborhoods such as South Hill have many early basements with shallow wells and original steel or concrete liners. Newer subdivisions often have deeper, plastic wells with a drain stub that may or may not be connected. In either case, the late-winter thaw is the time to check. A well that stays dry through January can overflow on the first warm, rainy day in March.

When it becomes a restoration job

A bucket and a mop are fine when the water stayed on a sill. It becomes a job for a licensed crew when:

• Water ran across the floor and reached carpet, padding or a finished wall
• Drywall is wet above the baseboard or has been wet for more than a day or two
• You smell mildew or see spotting on walls or trim
• Water has reached stored boxes, furniture or a furnace area
• The well has been leaking for weeks and you only just noticed

At that point the water is in materials that hold it. A crew extracts it, uses moisture meters to find what is wet behind the surface, and sets drying equipment for several days. Our basement flooding service page walks through what the process looks like, and water damage restoration covers jobs that spread beyond the basement. Costs depend on how much of the space is finished, how long the water sat and what has to be rebuilt. The inspecting company gives you the real figure in writing before work starts. For the factors, see the basement flood cleanup cost guide.

A short checklist before the next storm

• Clear every well down to the gravel
• Confirm that any drain runs freely, by pouring water in and watching it leave
• Add or repair covers, keeping bedroom escape wells operable
• Walk the yard and note where the slope sends water
• Extend downspouts away from the wells
• Store nothing valuable on the floor beside a basement window

Sources and official resources

• Verify a Washington contractor (Washington L&I)
• Home insurance guide (Washington Insurance Commissioner)
• IICRC: restoration industry standards body
• Flood insurance basics (FEMA FloodSmart)
• A Brief Guide to Mold, Moisture and Your Home (EPA)