
Crawl Space Drainage
Crawl spaces have many challenges because rainwater and groundwater can enter easily through vents and cracks and remain there. A flooded crawl space can cause many issues, especially mold and mildew, which is a severe health hazard.
In the Charlotte area, the natural topography directs water into crawl spaces and under foundation walls, increasing the risk of a flooded crawl space and soil erosion.
If your crawl space has standing water, Dry Otter provides premium crawl space drainage and repair, and we offer free inspections.
Why do I need drainage in my crawlspace?
Many crawl spaces have groundwater seeping in. When this happens, a crawl space drainage system of French drains is necessary to collect the water and direct it out of the crawlspace via a sump pump or gravity-fed exit system.
A crawl space drainage system will keep your crawl space dry and help reduce structural problems due to soil erosion.
What is a French drain?
A French drain consists of a ditch or channel dug around the crawlspace’s inside perimeter with a pitch or slope with a perforated pipe and gravel on top.
The drain directs water toward the sump pump or a special place for the water to exit by gravity.
Why are they called French drains?
How is a French drain installed in a crawl space?
- A trench is dug along the interior perimeter walls of the crawlspace. It should be sloped so water will drain towards the designated exit.
- A perforated pipe is inserted into the trench.
- The pipe is then covered with gravel. This prevents the line from clogging.
- The pipe is connected to a sump pump or gravity exit.
What is the warranty on crawl space drainage?
Dry Otter offers a lifetime warranty on crawl space drainage. Sump pump systems carry a manufacturer’s warranty. We do recommend annual maintenance.
Schedule your free inspection today!
What Our Customers Are Saying
EXCELLENT Based on 305 reviews George Barr2025-03-27Trustindex verifies that the original source of the review is Google. Great job. Installation team is easy to work with. Ronald Paulding2025-03-27Trustindex verifies that the original source of the review is Google. The crew arrived on time and went right to work. The crew lead explained what they would do, and had no problem answering questions during the process. They left the work area very clean. Very pleased. Luis Castellanos2025-03-26Trustindex verifies that the original source of the review is Google. Very good communication with the sales team and excellent service from the on-site team. Especially appreciated the on-site lead answering in great amount of detail all the questions we had. Thanks! Viridiana Vazquez2025-03-13Trustindex verifies that the original source of the review is Google. Absolutely amazing , thank you guys y’all did a great job .. Noah Bryson and Corey !! Thomas Blomquist2025-03-12Trustindex verifies that the original source of the review is Google. Timely, professional and polite. Competitive pricing. Took four days and looks great, for a crawl space that is. Miriam D2025-03-11Trustindex verifies that the original source of the review is Google. very impressed with their evaluation of our needs and their work exceeded expectations my crawl space looks like the Waldorf Astoria! Roy Fukata2025-02-27Trustindex verifies that the original source of the review is Google. This is my second job call from Dry Otter, I had an enclosed extension built over our basement entrance, being an old home with poor grade design, water leakage was rampant. On phase 1, I had the whole works done inside basement, crawl space, drainage, dehumidifier, sump-pump and now for phase 2, I have the tract system put in place. Although it hasn't rained after the tract system placed, I have confidence that my water leakages will be solved. Julie Edwards2025-02-24Trustindex verifies that the original source of the review is Google. We had a great experience with Dry Otter of Denver installing a basement drainage system and sump pumps. I was able to work from home while the crew worked. Efficient crew an finished in one day.
















Lifetime Warranty
10+ Years Industry Experience
230+ 5 Star Reviews
Schedule Your Free Inspection
Our process includes the following inspections:
Crawl Space Inspection:
- Moisture and Water Damage
- Mold and Fungus
- Insulation Condition
- Vapor Barrier
- Structural Issues
- High Humidity
- Condensation on Ducts
Basement Inspection:
- Water Intrusion
- Cracks and Wall Leaks
- Foundation Integrity
- Sump Pump Operation
- Mold and Mildew
- Basement Floor Cracks
- Hydrostatic Pressure
Our expert will personally visit your home and examine the issues you are having with your basement or crawl space foundation.
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