The short answer
Check the Foundation First
Start by inspecting the exterior foundation walls for cracks, gaps, or missing sealant. Storm water can seep through even small openings, especially if the ground is saturated. Look for areas where the soil has settled or eroded away from the foundation, which can create a direct path for water.
- Inspect foundation walls for cracks and gaps
- Check vents for damage or missing screens
- Look for soil erosion near the foundation
- Trace water stains to their source
- Note the location of any standing water
Look at Gutters and Downspouts
Clogged gutters can cause water to overflow and pool against your foundation. After a storm, check that gutters are clear of leaves and debris. Downspouts should direct water at least three feet away from the house. If they discharge near the crawl space, water can soak the soil and seep inside.
Consider adding extensions to downspouts to carry water further from the foundation. You can also install a rain barrel, but be sure to overflow it away from the house. If you notice water stains under a downspout, that is a sign of poor drainage. Fixing this can reduce the amount of water reaching your crawl space.
- Clear leaves and debris from gutters
- Extend downspouts away from the foundation
- Check for roof damage near the eaves
- Add splash blocks to direct water flow
- Inspect gutter joints for leaks
Consider Groundwater and Sump Pumps
In some areas, a high water table can cause water to rise up through the floor of a crawl space. This is more likely after heavy rain when the ground is saturated. You may notice dampness that appears even without obvious surface water. A sump pump can help manage this, but you need to ensure it is working.
Check if your crawl space has a sump pit or a drain. If water collects there, a pump should activate to remove it. Test the pump by pouring a bucket of water into the pit. If it does not turn on, the float switch may be stuck or the power may be off. A local water damage pro can help with pump maintenance.
- Test your sump pump with a bucket of water
- Check the float switch for proper operation
- Inspect vapor barrier for tears
- Clear the discharge line of debris
- Check the check valve for backflow
Assess Plumbing Leaks
Storm water is not the only possible source. A leaking pipe in the crawl space can also make it wet, and a storm can simply make you notice it. Check all exposed pipes for drips, corrosion, or condensation. Feel the pipes for moisture, especially at joints and valves.
If you find a leak, you may need a plumber to fix it. But first, turn off the water supply to that area if possible. Dry the area to prevent mold. A moisture meter can help you determine if the wetness is from a pipe or from outside water. A professional leak detection service can pinpoint the source.
- Inspect pipes for drips and corrosion
- Feel joints and valves for moisture
- Turn off water to isolate a leak
- Use a moisture meter to confirm source
- Check water meter for hidden leaks
Dry Out the Crawl Space
Once you find the source, you need to dry the crawl space to prevent mold and structural damage. Remove any standing water with a wet/dry vacuum or a pump. If the ground is saturated, you may need to wait for it to dry naturally, but you can speed up the process with fans and a dehumidifier.
Air circulation is key. Open any vents and use a fan to move air through the space. A dehumidifier can remove moisture from the air, but it may not be enough for a very wet crawl space. The pros have industrial equipment that can dry faster. They can also remove wet insulation and replace it, which is often necessary.
- Remove standing water with a pump
- Use fans to increase airflow
- Run a dehumidifier to lower humidity
- Check insulation for saturation
- Look for mold on wood and drywall
Talk to someone now
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (208) 729-2441Frequently asked questions
How do I know if the wetness is from rain or a pipe leak?
Check the pattern of moisture. Rain often causes dampness along walls and near vents, while a pipe leak is usually localized at the pipe. Use a moisture meter to test different areas. If the meter shows high readings near a pipe, that is likely the source. You can also check your water meter for movement.
Can I dry out my crawl space myself?
You can start by removing standing water and using fans and a dehumidifier. However, if the space is very wet or if insulation is soaked, you may need professional help. The pros have high-capacity drying equipment and can also remove and replace wet insulation to prevent mold. Acting quickly is important to limit damage.
Will my insurance cover the water damage?
Policies vary, and your insurer decides what is covered. Storm damage is sometimes covered, but flood damage may not be. Check your policy and talk to your insurance company to understand your coverage. Document the damage with photos and keep receipts for any temporary repairs. A professional can help with the cleanup, but coverage depends on your policy.