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How to Get Rid of Standing Water Under Your House

water in crawl space

When was the last time you checked the crawl space for standing water?

True, it can be dangerous to enter your crawl space on your own, but you still need to be vigilant about the condition of this area beneath your main living space.

Left unchecked, water in your crawl space can wreak havoc similar to water intrusion at the floor level. Typical signs of standing water include wood rot, termite infestation, mold growth on wooden surfaces, and cupping wooden floors. 

Here, we show you the major causes of standing water in the crawl space and what you can do to prevent the problem. 

What’s the Source of Standing Water? 

Unfortunately, there isn’t one particular reason why water is standing in your crawl space. You may have to do a bit of detective work to uncover the sources, which could be one or more of these: 

  • Ground Moisture
open vent and standing water in a crawl space

Check your crawl space floor. Exposed dirt tends to allow moisture and water from rainwater or poor drainage into the crawl space. This happens when the vapor barrier is damaged or installed in an improper manner. 

  • Open Crawl Space Vents

Another way that water enters the crawl space and pools is through open vents. Exterior sources of water can easily find their way through open vents, especially if your yard grading slopes toward the foundation. 

  • Foundation Cracks

Cracks and crevices in your foundation can also act as entry points for water. Do a quick check to see where water is coming through. Water that seeps through cracks will always leave visible signs. 

  • Leaking Pipes

Old, damaged, or weakened lines also account for many instances of standing water in the crawl space. Ask your plumber to inspect your plumbing line and system for leaks. With the faucet turned on, you should be able to determine if there’s a leak. 

  • Clogged Drains

If you have a low-point drain installed somewhere in the crawl space floor, check them as well as these systems can easily get clogged if they’re installed without a filter. 

Should I Worry About Water Under My House? 

Standing water under your home can lead to issues that can affect the health and the structural integrity of your home. Mold can grow and cause serious health problems including allergies and asthma. Water under the house is also an instant magnet for pests and bugs that may enter your home through cracks. 

Preventing Standing Water 

There are several things you can do to deal with standing water now and prevent a recurrence in the future. Here are the most critical:

  • Waterproof Your Crawl Space

Water and moisture remain the biggest threat to the below-ground areas. Waterproofing solutions such as interior drainage systems can help stop water ponding. A dehumidifier will also prevent condensation. 

  • Install A Submersible Sump Pump

This is the best remedy for water ponding due to a burst pipe or flooding. Anytime water gets into the crawl space, the sump pump actuates automatically and starts ejecting the water. 

encapsulated crawl space with dehumidifier and sump pump
  • Crawl Space Encapsulation

Installing a plastic vapor barrier around the crawl space area will help keep water, moisture, and pests out. Your crawl space will be completely isolated from the outside, and stay dry and problem-free. 

  • Seal Wall Cracks

Cracks and crevices act as passageways for water. Check for cracks and identify spots that might crack with time and ask your waterproofing expert to seal these areas. 

  • Improve Your Grading

When rainwater isn’t diverted properly, it will run back toward your home and enter the crawl space during a heavy rainstorm. Proper grading will ensure water flows out and away. 

  • Install & Maintain Gutters And Downspouts

These fixtures play a critical role in preventing overflows from the roof and water ponding in your crawl space. They take water from the roof to a designated discharge point. 

Contact Groundworks for Effective Crawl Space Water Removal

Any amount of water in your crawl space is problematic and needs to be addressed promptly. It’s equally important to fix it the right way the first time. The waterproofing experts at Groundworks are eager to help you resolve the problem of water under the house.

Contact us today to schedule a free crawl space waterproofing inspection and get a free quote along with recommendations to keep water out. 


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