Serving University City
Groundwater & Basement Water Intrusion in University City, MO
Basement seepage, failed sumps, and hydrostatic pressure against the foundation are extracted and dried, and the path from the ground is identified so the loss does not repeat. Groundwater and basement seepage are extracted and dried only after the path from the soil is identified — a wall, a slab, a drain, or a failed sump. Drying the interior without stopping that path returns the same water to the same floor.
Frequently asked questions
The drying company says it needs another three days. Is that normal?
In this housing stock, frequently yes. Solid brick and masonry absorb a great deal of water and release it slowly, so the wood framing and the drywall can be dry while the walls are still giving moisture back into the room. Pulling equipment on the framing readings alone is a common mistake here and it is why some jobs smell wrong two weeks later. Ask to see the readings taken in the masonry itself.
Should we be worried about the drain line as well as the sewer?
Yes, and they are separate questions. The public combined sewer surcharging is a neighborhood-scale problem you cannot fix from inside the house, and a backwater valve is the answer to it. Your own building sewer, which in this stock is often original clay with root intrusion, is a private problem that makes every surcharge event worse and can cause backups on its own. A camera inspection separates the two.
Can a basement in this kind of house ever be finished safely?
It can, but only after the water question is settled rather than alongside it. These basements were built before drain tile was standard, so most of them rely on the wall. Finishing over a wall that still occasionally weeps hides the problem behind drywall and moves the damage from visible concrete to invisible framing. The order that works is drainage and sump first, a full wet season to observe, and then finishes.
The same questions, in context, on the University City mold removal page.