Serving Columbia
Groundwater & Basement Water Intrusion in Columbia, SC
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 house was repaired after the flood. What should we check?
Whether the repair addressed the cause or only the damage. Work done under pressure after a regional event varies enormously, and the common shortcuts are wallboard replaced without the cavity being dried, flooring laid over a slab that was still wet, and nothing done about however the water got in. Metering the wall bases and asking what was done about the source are the two questions that matter.
Three rivers meet here. Which one governs our address?
Whichever your property actually drains toward, and whether the others are rising at the same time. Three converging systems mean the local level reflects several basins at once, and the worst outcomes come when they coincide. Following the relevant gauge forecasts rather than a single downstream number gives a much better picture, and impoundment operations upstream are worth watching alongside them.
Our part of the city is sandy and a friend's is clay.
Then you have different problems from the same rain and the remedies do not transfer. Clay sheds and concentrates runoff, so grading and interception help. Sand absorbs until the table rises and then delivers water from below, which grading barely touches. Establishing which ground you are on is the step that makes the rest of the advice usable.
The same questions, in context, on the Columbia mold removal page.