Home » Waterproofing » Should I Install a Sump Pump?

Should I Install a Sump Pump?

Knoxville, Tennessee along with the rest of East TN, receives an average of 48 inches of rain annually according to the National Weather Service Weather Forecast Office located in Morristown, TN. This has created a problem in many of the basements and crawl spaces in the area.

Sump Pump and Flooding?

Many home owners that purchased there homes several years ago, during a drought, are now seeing what can happen if the foundation drains located around crawl space and basements start to fail from all the rain fall. Some foundation drainage systems were installed incorrectly or over the years have become crushed which causes water to seep into basements and crawl spaces. Sump pumps are a great way to move large volumes of water out of crawl spaces and basements.

Crawl Space French Drains with Sump Pump

Trenching the interior of a crawl space or basement may be a good idea if:

  1. Your crawl space floods after medium to heavy rains
  2. Exterior waterproofing is not an option
  3. Flooding is leading to high humidity
  4. Musty smells are getting worse
  5. Neighbors homes are dumping water on your property
  6. Home is near a pond, lake or river
  7. Keeping downspouts and gutters cleared has failed to keep out the water
  8. Home is located in a low lying subdivision
  9. Soil won't perc properly

Clean Gutters and Downspouts

Before addressing the crawl space or basement waterproofing, it is a good idea address clogged gutters and improperly placed downspouts immediately. Gutter guards are sometimes effective at keeping gutters clean but installing them is no excuse for not checking them on a regular basis to ensure they are working properly. We encourage you to NOT direct downspouts at the neighbors property but to run them to the street if possible. There are many factors that can cause water to intrude the crawl space or basement so sometimes a visual inspection during a rain storm is necessary to determine the best course of action.

Sump Pumps in a Dry Crawl Space

Have you ever been the victim of a flood? If you have ever filed an insurance claim because your home flooded then what I am about to say will make sense. We encourage unfinished basements and crawl spaces to be equipped with a sump pump in the event of a water damage restoration or potential flood. Trenching the crawl space or basement may not always be necessary. Keep in mind a sump pump strategically placed in the basement or crawl space is very useful in removing water in the event a home experiences a pipe burst or other flooding. Many crawl space encapsulation systems being installed today  can become swimming pools if a leak from above occurs and the water becomes trapped. A sump pump will move the water out as it begins to flood the crawl space or basement and can minimize damage significantly.

Contact Crawl Space Ninja for Basement Waterproofing and Encapsulation

Please contact us to schedule your assessment to fix your crawl space, basement issue. 


Do you need help with mold removal, crawl space encapsulation, crawl space insulation, vapor barrier, waterproofing, foundation repair, basement waterproofing, or controlling humidity in your crawl space?

If you live in Georgia, Delaware, North Carolina, South Carolina, Tennessee, or Kentucky, Crawl Space Ninja can help!


Also, let us know in the comments below if you have an idea for a new blog topic.

DIY Crawl Space Repair

Perhaps you'd like to tackle your own crawl space repair. Visit our DIY Store.

Join Crawl Space Ninja as an Owner

Learn about Crawl Space Ninja Franchise opportunities.

About Michael Church

Michael Church has been involved with indoor air quality since 2005 and feels the unhealthy crawl space is one of the major problems causing poor indoor air quality.

1 Comment

  1. Michael Church on July 18, 2019 at 1:35 pm

    Hi Mandy, try using a disinfectant like the Anasphere (https://diy.crawlspaceninja.com/product/anasphere-plus/) but make sure the humidity is below 60% and the ground is dry. The plastic should be ok treated but I would dispose of any tape that may have mold on it. Also, is the foundation wall painted?

Leave a Comment