Kansas City drainage
When water comes up at the joint between the basement wall and the floor, it is being pushed there by pressure in the soil. Interior drain tile relieves that pressure: a strip of floor is cut out along the wall, perforated pipe is laid in gravel at footing level, and it runs to a sump pit where a pump sends the water outside and away from the house.
A basement floor is poured after the walls, so there is always a joint where they meet. After heavy rain, water held in the clay around and under the house builds up pressure, and that joint is the easiest way through. It shows up as a wet line along the base of the wall, puddles that spread from the edges of the room, or a floor that is damp at the perimeter and dry in the middle. Sealing the joint from inside does not remove the pressure; it moves the water to the next weak point.
A strip of concrete floor about a foot wide is cut and removed along the inside of the foundation walls. The soil below is dug down alongside the footing, and perforated pipe is laid in washed gravel, sloped toward a sump basin set into the floor at a low corner. Water that builds up around the footing now drains into the pipe before it can push through the joint. Many systems add a dimpled membrane on the lower wall that guides any seepage down into the drain. The trench is then filled and the floor re-poured.
The sump pump lifts collected water out through a discharge line. Where that line ends matters as much as the drain itself: if it empties next to the foundation, the pump ends up moving the same water in a loop. The discharge should run well away from the house, ideally into a buried line to daylight or an emitter. A battery or water-powered backup pump is worth considering, because the storms that fill a sump are the ones that knock the power out.
It suits unfinished or partly finished basements, houses where digging outside is blocked by driveways, patios or neighbouring houses, and the 1970s to 2000s poured basements across Olathe, Blue Springs and Lee's Summit where a sump pit is already part of the design. Where the basement is finished wall to wall, exterior waterproofing may be the less disruptive route. Tracing the leak first decides between them.
How long does it take? Commonly two to three days for a full perimeter, including breaking out the floor, laying pipe, setting the sump and re-pouring the concrete.
These often come up on the same property, and can be planned in the same visit:
Water in the basement after rain has a source outside. We trace it, then fix the cause rather than the stain.
How it works →Excavate to the footing, seal the wall with a membrane and lay drain pipe at its base.
How it works →Solid pipe underground from each downspout to daylight or a pop-up emitter well away from the house.
How it works →Free drainage check request
Tell us where the water shows up and roughly when it started. We call back to set a time to look.
We'll call to set a time. If it can't wait, call (816) 857-9277
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