To deal with a flooded basement, stay out until power is off, remove the water with pumps or extractors, pull out wet carpet pad and lower drywall, and run commercial dehumidifiers until moisture readings are normal. Then fix the cause — often a failed sump pump, poor drainage, or downspouts emptying next to the foundation.
Last updated
Many homes across North Atlanta, Decatur, and the northern suburbs are built into slopes with finished basements — and Georgia red clay drains poorly. Heavy rain, a failed sump pump, clogged gutters, or a grading problem can all put water on the basement floor.
Common causes
- Sump pump failure from power outages, a stuck float switch, or an undersized pump
- Hydrostatic pressure pushing water through slab cracks and wall joints after long rains
- Gutter and downspout problems dumping roof water next to the foundation
- Window well flooding when wells lack drains or covers
- Water heater or washer failures — often in the basement
Cleanup and drying
Finished basements hold water in carpet pad, drywall, and the insulation behind it. Expect extraction, removal of wet pad and lower drywall, and several days of dehumidification. Basements are naturally humid, so commercial dehumidifiers are especially important to reach a true dry standard.
Stopping it from happening again
After drying, consider a battery-backup sump pump, extending downspouts at least 4–6 feet from the foundation, regrading soil to slope away from the house, and a waterproofing evaluation. We can also connect you with waterproofing specialists — just mention it in your request.
Frequently asked questions
Why does my basement flood when it rains?
Common causes are hydrostatic pressure from saturated clay soil, downspouts discharging too close to the foundation, grading that slopes toward the house, clogged window well drains, and sump pump failures.
Should I get a battery backup sump pump?
If your basement relies on a sump pump, yes. Thunderstorms that cause flooding often knock out power too, which is exactly when a pump without backup stops working.
How long does it take to dry a basement?
Typically 3–5 days with commercial dehumidifiers and air movers, sometimes longer for concrete and block walls, which hold moisture.