Crawlspace Dehumidifier

If you’ve noticed a damp feeling in the house, moldy closets, or musty odors, you probably have crawlspace moisture. Up to half of the air in your house can come into the house from the crawlspace due to the Stack Effect.

Stack Effect – aka the chimney effect – as warm air rises it pulls the air upward and creates a suction, whereby sucking air from the lower extremities of the house, including the crawlspace, floor vents, doors, windows or other minor openings.

Once you have high moisture, a crawl space dehumidifier might be necessary. In North Carolina, we have warm humid summers with high outside humidity, making for wet crawl spaces and fertile grounds for mold growth. By installing a crawlspace dehumidifier, you’re protecting your crawlspace from high moisture and mold growth. 

Best Crawlspace Dehumidifier Brands:


Aprilaire dehumidifiers are the best dehumidifiers on the market in 2019. They come with a digital display, fully automatic operation, and the best warranty in dehumidifiers today – 5 Years Evergreen Warranty.

Aprilaire has a legacy of indoor air quality innovation, since 1938. They are responsible for some of the best technology in the World for Dehumidification, HVAC, and Refrigeration.

Aprilaire is a very reliable and trustworthy dehumidifier. Maybe 1/50 units have minor errors but are easily troubleshooted by our expert technicians. They are not as easily set up as the Santa Fe units but are much more dynamic, with more capabilities, and better repair options. Aprilaire crawlspace dehumidifiers are what we recommend and what we install. The 5 Year Evergreen Warranty on the Aprilaire units is the best warranty in the industry. Aprilaire gets 5 of 5 Stars from DryWorx Crawlspace!


Santa Fe Dehumidifiers are definitely one of the top brands in the nation. We don’t have many problems with these units but we switched to Aprilaire for the superior technology and warranty. The warranty for the Santa Fe compact dehumidifier (most common unit) is only 1 year on parts and labor, with a limited 5 year warranty. This warranty isn’t great.

The best thing about the Santa Fe crawlspace dehumidifier is it’s super easy operation. The controls for the dehumidifier are simple. Set the dehumidifier to ‘Fan Auto’ and change the dial to ‘Normal / Dry’ and your crawl space should dry up IF it is properly sealed.

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crawlspace dehumidifier - charlotte, nc - dryworx crawlspace waterproofing 2
crawlspace dehumidifier - charlotte, nc - dryworx crawlspace waterproofing 1