Foundation · triage
Water in the basement or around the foundation after rain
The short answer
Most basement water after rain comes from the outside in: overflowing gutters, downspouts dumping at the wall, or soil sloping toward the house. Check those first. Rising water near electrics is urgent.
Rising waterIf water is rising toward outlets, the furnace or the panel, follow the water-near-electrics card.
Know your shutoffs
Every outcome on this card
Emergency nowWater rising near electrics
Stay out of the water.
- Keep out of standing water near electrics
- Cut power at the main only if you can stay dry
- Check the sump pump and call for help See the sump-pump card.
This weekGutters and downspouts
Fix the drainage this week.
- Clean gutters and check downspouts flow
- Extend downspouts several feet from the foundation Splash blocks or extensions are inexpensive.
- Dry the basement within 24–48 hours EPA: drying wet materials within 24–48 hours helps prevent mold.
This monthSeepage through walls or floor
Plan a fix this month.
- Check that soil slopes away from the house
- Note where and when water appears Photos with dates help a contractor.
- Get two opinions from waterproofing contractors Compare written scope, not just price.
Related
Written from
Original casaq guidance, updated 2026-10-05. General guidance, not a diagnosis; licensed-pro review pending. Severity levels: Emergency now / Today / This week / This month / Watch. Send a correction.
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