Basement & Window Well Flooding in Colorado Springs

Updated November 12, 2026

Basement flooding in Colorado Springs is rarely a single big event. More often it is a few inches of water from a window well after a spring snow, a slow seep along the base of a wall after a wet week, or a sump pit that overflowed while the pump was stuck. In newer homes, that basement is usually finished, with carpet, framed walls and a bedroom or two, so a small amount of water reaches a lot of material. This page covers why basements here take on water, what to do first, and what the cleanup involves.

Why local basements take on water

Expansive clay and bentonite

Much of the area sits on clay soils that swell when wet and shrink when dry. That movement cracks basement walls and slabs, and wet clay against a foundation holds water right where you do not want it. Our article on expansive soil and basement water explains how it works.

Foundation underdrains and sump pumps

Plenty of newer homes in areas like Briargate, Stetson Hills, Banning Lewis Ranch and Falcon have perimeter drains that collect groundwater around the foundation. Some send it to a sump pit with a pump, and others drain by gravity. A stuck float switch, a dead pump during a power outage or a clogged discharge line can push that water up into the basement. See our post on sump pump and underdrain problems.

Window wells

Basement windows sit in wells dug below grade. Snow piles into them, melts on the next sunny day and runs down the glass. If the well drain is clogged with leaves or the gravel has silted up, the well fills like a bucket until the window seal gives. Snowstorms in March, April and May are often heavy and wet, and the melt comes fast. Our post on window well flooding has prevention tips.

Downspouts and sprinklers

A downspout that dumps beside the foundation or a sprinkler head aimed at the house wall can saturate the soil in the same spot every day. That steady water often shows up as a damp strip of carpet along one wall.

Walkout and garden level basements

Homes built into hillsides on the west and north sides often have walkout basements with a door at grade. Storm water running down a slope can pool against that door or the slab edge beside it. A threshold that sits even an inch too low, or a patio that slopes toward the house, can let water in during every hard summer storm. If water only shows up after heavy rain and only near that door, grading is the likely culprit.

Plumbing inside the basement

Water heaters, washing machines, water softeners and floor drains often sit in the basement. When they fail, the water goes straight to the lowest floor.

What to do right now

1. Stay out if the water is near outlets, the furnace or the water heater. Shut power off at the panel only if you can do it from a dry spot.
2. Find the source. Look at window wells, the sump pit, the water heater and the floor drain. If it is a plumbing line, shut off the main.
3. Check the sump pump. If it is not running, see if the breaker tripped or the float is stuck. Do not reach into the pit with the pump plugged in.
4. Clear window wells of snow if you can do it safely from outside, and shovel snow away from the foundation.
5. Lift what you can. Move boxes, electronics and furniture to a dry floor. Wet cardboard boxes break down quickly.
6. Take photos of the water level, the source and the affected rooms.

What the crew does

Pump and extract

If water is more than an inch or so deep, a submersible pump goes in first. Extractors then pull water from carpet and pad. Basement carpet is often glued or tacked directly over concrete, so the crew checks how much the pad has absorbed.

Check the walls

Finished basement walls usually have drywall over wood studs, with insulation against the foundation. Meters and a thermal camera show how high the water wicked. The crew may remove the bottom section of drywall and wet insulation so the cavity can dry, and they look for mold on the back side of the drywall.

Dry the slab and framing

Concrete holds moisture for a long time, and so does the bottom plate of the framed walls. Air movers and dehumidifiers run until both test dry. Some crews use floor drying mats or heat in tough spots.

Identify the cause

The restoration crew is not a foundation contractor, but they can often tell you where the water came from: window well, wall crack, sump failure or plumbing. That helps you decide who to call next, whether a landscaper, a waterproofer or a plumber.

Rebuild

New pad and carpet or flooring, insulation, drywall, paint and baseboard. If the source was a window well or sump issue, fixing that before rebuilding saves you from doing it twice.

What drives the cost

Every basement is different, and the company that inspects writes up the scope and price before work starts. The biggest factors are:

The basement flood cleanup cost article goes deeper into each of these.

How long it takes

Pumping and extraction usually take a few hours to a day. Drying a finished basement typically takes 3 to 5 days for clean water, though a thick slab or a soaked bottom plate can stretch that. If the walls and flooring are being replaced, the rebuild can add one to several weeks. Below grade rooms often lag a day or two behind upstairs rooms because cool concrete keeps the air near the floor damp, so the crew may shift equipment as each area finishes.

Insurance, in general

Basement water is one of the most confusing claim types. Many policies cover sudden water from an inside plumbing failure. Groundwater that seeps through the foundation is commonly excluded. Water that backs up from a sump or floor drain usually needs a water backup endorsement. Surface water that flows in from outside, like a flash flood, generally requires flood insurance. Read your policy or ask your agent which situation you are in.

When to call

Call when water is on a finished basement floor, when carpet along a wall is wet, when a window well has filled and leaked, or when the sump pit is overflowing. Also call if you notice a musty smell in the basement but cannot find water, since that often means moisture behind the drywall. Crews cover the whole area, including Fountain and Falcon.

Sources and official resources

• Contractor license lookup (Pikes Peak Regional Building Department)
• Homeowners insurance help (Colorado Division of Insurance)
• IICRC: restoration industry standards body
• Flood insurance basics (FEMA FloodSmart)
• A Brief Guide to Mold, Moisture and Your Home (EPA)