Water in Basement After Heavy Rain: Causes and Fixes for Westchester Homes

Finding water on the basement floor after a storm is one of the most common homeowner problems in Westchester. Sloped lots, ledge and saturated soil can push water toward the house, older foundations have more paths for water, and gutters or grading that send water toward the house make it worse. The good news is that the first fixes are often the cheapest.

Quick diagnosis checklist

  1. Where is the water?. Water at the floor-wall joint points to groundwater pressure or a drainage problem. Water coming through the middle of a wall can mean a crack or a gutter and grading problem. A puddle under a pipe is a plumbing leak, not a waterproofing issue.
  2. Check the gutters and downspouts. Overflowing or clogged gutters and downspouts that empty right at the foundation are common causes. Extend downspouts several feet away from the house.
  3. Check the grading. Soil should slope away from the foundation. Settled soil next to the wall can funnel water toward it.
  4. Check window wells. Wells filled with leaves or soil, or without drainage, can fill like a bucket against the wall.
  5. Test the sump pump. Pour water into the pit. The pump should start, empty the pit and shut off. See our guide to a sump pump that runs constantly.
  6. Take photos and note timing. Record where and when water appears relative to rain or thaw. Contractors can use this to diagnose the cause.

DIY or call a pro?

Cleaning gutters, extending downspouts, adding soil to low spots and clearing window wells are homeowner jobs. Call a waterproofing contractor if water keeps entering after those fixes, if you see cracks, bowing walls or mold, or if the sump pump cannot keep up.

Frequently asked questions

Is a little water after a big storm normal?

It is common but not something to ignore. Repeated water means a drainage problem that tends to get worse.

Who should I call first?

A waterproofing company or drainage contractor can assess the source. Get more than one opinion before agreeing to large work.

Who to call

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