Crawl Space Dehumidifier Installation
A sealed crawl space still gains moisture from the soil and the air. A crawl space dehumidifier pulls it back out, holds humidity in a healthy range and drains by gravity or a small pump so you never empty a bucket. We size the unit to your space, set the humidistat and show you how it works.
- UnitBuilt for crawl spaces
- DrainGravity or condensate pump
- ControlHumidistat set for the space
- Pairs withEncapsulation
What is included
- 1Steady humidityHeld in a healthy range all year.
- 2No bucketsDrains on its own.
- 3Right-sizedMatched to the space and the soil.
- 4Easy to servicePlaced where you can reach it.
From the first call to a dry crawl space
Our partner experts repair and protect crawl spaces in cities across the country. Find yours below and ask for a free estimate.
- 1SizeWe measure the space and the moisture load.
- 2PlaceA spot with power and drain is chosen.
- 3InstallThe unit is mounted, wired and drained.
- 4SetHumidity target is set and tested.
Is this the right service for you?
- A sealed crawl space that still feels damp
- A home with musty odors
- Owners after encapsulation
- A space with a high moisture load
Common questions
How much does it cost to run?
It depends on the unit and the load. We explain the typical use for your space.
What humidity should it hold?
Many aim for a range in the 40s to 50s percent. We set the target with you.
Does it need a drain?
Yes. We use gravity or a small pump so it never needs emptying.
Services that pair with this one
Crawl Space EncapsulationSeal the floor, walls and vents so ground moisture and outside air stay out of the space under your home.See the service 
Dehumidifier Repair and ReplacementA unit that has stopped drying, freezes up or leaks gets diagnosed and either fixed or swapped.See the service 
Humidity Monitoring SystemsA small sensor that watches the crawl space and tells you when humidity drifts, before it becomes a problem.See the service Find your city
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Find out what is under your house.
Call or text, or send the form for your free estimate. Tell us what you notice, from smells and cold floors to water and sagging.