Basement Flooding Cleanup in Thornton, CO
The storm cell sat over 120th Avenue for an hour on a July evening, the gutters overflowed onto the north side of the house, and by ten o'clock the carpet in the finished basement was dark along the whole back wall. The window well had filled, the cove joint was weeping, and the sump pit in the utility room was running nonstop. This site puts you through by phone to an independent local provider who cleans up flooded basements in Thornton and across Adams County.
Finding the low point and the way the water got in
The crew starts by finding where the water is deepest and where it entered, because a basement that took groundwater through a crack is a different job from one where the floor drain backed up. They pump the standing water off the slab, pull back the carpet at the wet wall, and meter the drywall at the base of every wall on the level, not only the one that looks wet. Water that comes in at one corner follows the footing around the room under the carpet pad and shows up as a damp closet on the far side a week later.
They also look at the window wells, the downspout that dumps at the corner, and the crack pattern on the wall. That tells you whether the next storm does this again.
What to do while the sump pump is still running
Turn off the breaker for the basement if the panel is upstairs and the outlets down there are near the water. Leave the sump pump alone unless the water is at its outlet. Move boxes, rugs, and anything you can carry up the stairs, and photograph every wall, the pad, and the water line before anything goes out. Do not pull the carpet up yourself; lifting it early pushes the water across the slab into the dry half of the room. Then make the call and describe what you found.
What dries in place and what the crew hauls out
Carpet usually dries once the pad under it is gone, and the pad almost always goes. Drywall that took clean groundwater and is metered within a couple of days often dries in place with the baseboard off and holes cut for air at the bottom. Drywall that sat wet for a week, or that has paper backing already bubbling, comes out to two feet. Framing and the sill plate almost always dry with air movers on them. Anything the water touched from a floor drain or a sewer backup is a different story, and that material comes out. After the wet material is gone, structural drying runs until the readings say the walls are dry.
Why Thornton basements take water from below and beside
Nearly every house in Thornton has a basement or a garden level set into clay. The soil swells when it gets wet and shrinks in a dry August, and that movement opens the hairline cracks that leak in the next storm. Thornton's storm runoff drains to Niver Creek, Grange Hall Creek, Big Dry Creek, Brantner Gulch, and Todd Creek before it reaches the South Platte, and the Mile High Flood District maps the floodplains along each of them. The city's own stormwater program handles the inlets in the street, but the window well on your north wall is yours.
The big one here was the week of September 9 to 15, 2013, when Thornton recorded almost nine inches of rain in seven days and the ground stayed saturated for a month. Basements that had never leaked took water through the cove joint that week, and many of them have leaked in every wet spring since.
Groundwater seepage and floor-drain backups are often excluded from a standard homeowner policy unless you carry a water backup endorsement. What your own policy says is a question for your agent, not this site. Have the crew log the readings and photos from the first visit so your adjuster has the file either way.
Calling about a basement that flooded
Say whether the water came through the wall, up through the floor drain, or from a pipe, whether the sump pump is running, and whether the basement is finished. Mention if the water has stopped or is still coming in. Call (720) 735-3725.
