How Do I Prevent Water From Entering My Basement?
Last updated October 25, 2026
The short answer
Check Your Gutters and Downspouts
Water often enters a basement because gutters are clogged or downspouts dump water too close to the foundation. Clean gutters at least twice a year, especially in fall when leaves collect. Make sure downspouts extend at least five feet away from the house, and use splash blocks or a buried pipe to carry water farther.
Watch where your downspouts empty during heavy rain. Look for puddles forming near the wall. That water has nowhere to go but down. Adjust the downspout angle or add an extension to move water clear of the basement wall.
- Clean gutters before rainy seasons
- Extend downspouts at least five feet
- Use splash blocks to direct flow
- Check for leaks in gutter joints
- Consider a rain barrel with overflow
Grade the Soil Away from Your Foundation
The ground around your basement should slope away from the house so surface water runs off, not toward the wall. Over time, soil settles and can create a dip that collects water. Add topsoil to build a slope of about six inches over ten feet. Compact it lightly so it stays in place.
Also look at flower beds and patios. Mulch and decorative rocks can hide low spots. If a patio or walkway slopes toward the house, water can pool against the foundation. Regrade those areas or install a small drain to redirect runoff.
- Add soil to create a slope
- Check after heavy rain for puddles
- Regrade patios and walkways
- Keep mulch from blocking drainage
- Install a French drain if needed
Seal Cracks in Walls and Floors
Small cracks in basement walls or floors can let water seep in during heavy rain. Inspect the interior and exterior for gaps, especially around pipes and utility lines. Use a hydraulic cement or epoxy-based sealant to fill cracks. For larger gaps or structural issues, consult a professional.
Sealing cracks is not a permanent fix for serious water pressure. If water is pushing through the wall, you may need exterior waterproofing or a drainage system. A local water damage pro can assess the situation and recommend the right approach.
Install a Sump Pump and Drainage System
If water collects on your basement floor, a sump pump can remove it before it spreads. A sump pit collects water, and the pump sends it outside. Choose a pump with a float switch that turns on automatically. Test it monthly by pouring water into the pit.
For persistent water problems, consider a perimeter drain system. This involves a trench around the foundation with a pipe that carries water to a sump or daylight. This is a bigger project and may require excavation. Ask a professional for an assessment if you're unsure.
Maintain Window Wells and Seals
Window wells can fill with water and push it through the window frame. Install a clear plastic cover over the well to keep rain out while allowing light. Ensure the well has a drain at the bottom that connects to a pipe leading away from the house. Check the caulking around window frames and reseal if it's cracked.
Also check the seal where the window meets the frame. If it's old or brittle, replace it. Keep the well clear of leaves and debris. If water still gets in, the window may need replacing, or you may need a deeper well with a sump pump.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (801) 383-0232Frequently asked questions
How can I tell if my basement has a water problem?
Look for damp spots on walls or floors, musty odors, or efflorescence, a white powdery residue. Check after rain for puddles or wet areas. If you see cracks or peeling paint, water may be seeping in.
Can I seal my basement walls from the inside?
Interior sealants can help with minor seepage, but they won't stop heavy water pressure. For a lasting fix, you may need exterior waterproofing or a drainage system. A professional can help you decide the right approach.
What should I do if water is already entering my basement?
Act quickly to remove standing water and dry the area. Use a wet-dry vacuum or a pump for large amounts. Move belongings to higher ground and run fans or a dehumidifier. For extensive flooding, contact a water damage professional.