Serving Lanham
Groundwater & Basement Water Intrusion in Lanham, MD
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
Is there a way to find out what runs beneath these streets?
County stormwater mapping and historic topographic sheets, read together. The modern mapping shows the piped system; the old sheets frequently show a stream where a road now runs, which explains a great deal about which blocks take water. Both are public. Half an hour with them tells you more about a specific address than any amount of inspecting the house itself.
The street took water and our neighbor two doors up stayed dry.
On ground this flat a foot of elevation decides it, and the piped watercourse below does not follow the surface in an obvious way. What matters is where your lot sits relative to the low point that the system surfaces at when it is exceeded. That is worth establishing once, because it does not change, and it tells you whether the risk is worth engineering against or simply living with.
How quickly does this kind of flooding come and go?
Within the hour in both directions, which is the hardest part of it. A confined headwater channel fills fast, peaks high and empties almost as quickly, so there is no interval in which anything can be moved. That rules out response-based plans entirely. Whatever protection matters has to be permanent and in place before the season, because on the day there will be no time to deploy it.
Open the Lanham FAQ beside the housing and climate notes.