Serving Detroit
Groundwater & Basement Water Intrusion in Detroit, MI
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
Water came up through the basement floor drain. Where is it from?
Usually the municipal line rather than a crack in your wall. When May rain overwhelms the combined sewer, the surcharge finds the lowest opening on the lateral, which is the floor drain. Treat that water as contaminated whatever it looks like. Extraction comes first, then porous material it touched comes out; a backwater valve is the conversation after the floor is dry, not instead of it.
The mortar has been crumbling for years. Why did the wall start leaking this spring?
Freeze-thaw is cumulative. Water in a joint expands each winter and widens the path a little, and one spring it finally opens a continuous route from the saturated yard into the cellar. Nothing failed overnight. The masonry was never damp-proofed, so once the joint connects, May rain uses it. Keep roof water off the foundation; sealing the inside face does not stop a path that starts outside.
The vacant house next door has a collapsed gutter. Does that put water in my cellar?
It can. On these narrow lots a failed gutter next door dumps onto ground that falls toward both foundations, and an unheated neighbor lets the shared grade stay wet longer. Look at that discharge line when a persistent damp wall will not match your own roof. A local pro can map which side of the lot is feeding the wall before anyone opens plaster on the wrong house.
These questions come from the Detroit page.