The Best Dehumidifiers for Crawl Space – Consumer Reviews

High humidity in your crawl space can create many problems with poor air quality in your home, which a lack of ventilation can cause. Adding a dehumidifier makes it easy to deal with issues like mold problems, insects, and pests, as well as foul odors and allergy triggers. With the correct type of crawl space dehumidifier, you can adequately take care of crawl space moisture problems and create a healthier environment for your family. Here are a few tips and reviews to help you find the best dehumidifier for crawl space for your home.

Read Here: The Best Dehumidifiers with Pump for Basement

What Type of Dehumidifier Do I Need for Crawl Space?

Unlike the best dehumidifiers for cold basements and the best dehumidifiers for dorm rooms, dehumidifiers needed for crawl spaces are not regular portable types. Placing this type of product in a crawl space would damage it, while the moisture extraction capacity wouldn’t have made a dent in the humidity level anyway.

There are rugged, compact, and high moisture extraction dehumidifiers suitable for crawl spaces, also known as commercial dehumidifiers. In purchasing a unit for crawl spaces, you must consider commercial dehumidifiers only.

Top 5 Best Dehumidifiers for Crawl Space

1) AprilAire E100 Pro 100 Pint Dehumidifier/Crawl Space Dehumidifier

Special features: high capacity for large spaces, leveling feet for stability, white finish for a sleek appearance.

Best dehumidifier for crawl spaces
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The powerful and high-capacity AprilAire E100 Dehumidifier can remove excess moisture from the air in commercial buildings, basements, and crawl spaces up to 5,500 square feet. This dehumidifier can quickly and effectively lower humidity levels in extensive areas with a daily moisture removal capacity of up to 100 pints.

One of the noteworthy features of the AprilAire E100 is its digital control panel, which enables simple humidity setting adjustments and offers real-time humidity level readouts. Its integrated humidistat and the automated shut-off feature help save energy and avoid over-drying, keeping the unit at a constant level of moisture removal.

The AprilAire E100 has a rigid metal frame, leveling feet, user-friendly controls, and remarkable moisture removal powers. The washable MERV 8 filter traps airborne dust and allergens, resulting in a cleaner and a better-to-breathe air in your environment.

The AprilAire E100 Dehumidifier is a superb option for anyone searching for a dependable and efficient method of reducing excess moisture in sizable commercial or domestic spaces. This dehumidifier will last many years thanks to its large capacity, simple controls, and solid construction.


  • High moisture removal capacity
  • User-friendly digital control panel
  • Integrated humidistat
  • Auto shut-off
  • Durable metal frame and leveling feet for added stability
  • Washable MERV 8 filter that captures airborne particles and allergens


  • Higher price point compared to some other dehumidifiers
  • Large and heavy, which may make it difficult to move around or find a suitable location for installation
  • Might be noisy during operation

2) Abestorm Commercial Dehumidifiers with Pump

Special features: corrosion resistant coils, item weight; 56 pounds, dimensions; 25 x 12.5 x 12.5 inches.

Aprilaire 1820 Crawl Space Dehumidifier is a good humidifier for small places.
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Designed for basements and crawl spaces, the Abestorm Commercial Dehumidifier works in homes of up to 2,800 square feet and can remove up to nine gallons of moisture daily. Due to the front-mounted control panel, this dehumidifier is easy to access, no matter where it is installed. The interactive display makes it simpler to use and is super easy to set up.

The Abestorm Commercial Dehumidifier does not require emptying messy overflow trays; you would only need to clean or replace the filter once a year. Using corrosion-resistant aluminum coils, this dehumidifier helps prevent leaks due to its high-quality construction. Compatible with 110-volt AC to 120-volt AC single phase 60 Hz power sources, this unit is incompatible with 50 Hz power sources.

A great choice to improve your family’s health, this dehumidifier will eliminate excess moisture and maintain a relative humidity level below 60 percent, helping you get rid of dust mites, fungi, and bacteria. This can help reduce symptoms that are associated with asthma and allergies, as well as reduce incidences of respiratory infections. Plus, you will get rid of musty odors and visible forms of mildew and mold and help preserve wood furnishing, cabinetry, and floor.


  • It comes with a remote control
  • It has duct collars and a washable filter
  • You don’t have to dump out water trays with this unit
  • Five-year warranty


  • Lack of a timer
  • You can’t monitor the temperature on the remote control

3) BlueDri BD-76 Commercial Dehumidifier

Special features: rugged rotomolded housing, compact, digital touchpad controls, product dimensions; 12.5 x 12.5 x 17.6 inches, item weight; 63 pounds, straphangers.

Dri-Eaz PHD 200 Commercial Dehumidifier is ideal for drying a basement or crawl space.
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Ideal for drying out a basement or crawl space, the BlueDri BD-76 Commercial Dehumidifier can remove up to 16 gallons of water each day. A great option if you want to get excess humidity under control, this commercial dehumidifier features a compact design that is perfect for tight spaces like crawl spaces. This reliable and durable piece of equipment is easy to transport or stack for storage.

With a high-performance design, the PHD 200 has touch-pad controls, a built-in humidistat, and an auto pump-out system. This durable and tough dehumidifier features rugged rotomolded housing, making it perfect for crawl spaces, utility rooms, garages, shops, and unfinished basements. Anywhere you want to remove humidity that can cause mildew, rot, corrosion, rush, or musty smells.

Easy to read, the digital controls on the PHD 200 are perfect for a dark environment. The included humidistat allows you to set a preferred humidity level. At the same time, the automatic pump will enable you to operate continuously without worrying about emptying an overflow tray or tank.


  • High moisture extraction rate
  • Washable filter
  • Auto restart
  • Auto humidistat
  • Able to work in low temperatures
  • Internal anti-corrosion protection
  • Warranty packages; 5 years, 3 years, or 1 year


  • No digital display
  • Not budget-friendly

4) Honeywell 70 Pint Smart WiFi Energy Star Dehumidifier

Special features: HAF filter, commercial-grade, temperature and relative humidity display with touch controls, rugged rotomolded housing, dimensions; 12.5 x 12.5 x 12.5 inches, item weight; 61 pounds. 

dri-Eaz Revolution LGR Commercial Dehumidifier with Pump has great features and good quality.
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On seeing the price tag of this unit, many might be put off immediately, but when you consider the quality and the features it brings to the table, the high tag is more than worth it.

We are considering dehumidifiers for the crawl space; therefore, the regular fancy unit you may be used to just wouldn’t cut it because when placed in such torrid condition as that of a crawlspace, it wouldn’t last a pinch of its regular life span.

Honeywell 70 Pint Smart WiFi Energy Star is designed with a rugged rotomolded housing that enables it to go through whatsoever environment it finds itself in. It is a commercial-grade dehumidifier intended to thrive in poor environmental conditions without neglecting a regular unit’s distinctive features.

It possesses a digital screen, where the environmental temperature and relative humidity are measured and displayed. There is also a built-in humidistat programmable for the user to set a specific humidity level as required by the crawl space, after which the unit takes care of the rest.  The unit’s small size helps it fit into small holes in the home.

With a moisture extraction rate of up to 17 gallons of water per day, this unit’s performance is jaw-breaking, and it can serve vast room spaces of up to 7000 sqft. That’s unlike any domestic portable dehumidifier you have ever seen. Due to this, it can draw a crazy amount of moisture from the atmosphere, and even from moist surfaces, like your wet ground or wooden tables.

The pump built into the Honeywell 70 Pint Smart WiFi Energy Star automatically drains the water out after condensation to wherever you channel it. The unit doesn’t have a water tank, as it would fill it up quickly.

There is also an auto-restart function to kick the machine back into operation with the same parameters as when it went off in cases of a power outage.

To further encourage buyers worldwide, the manufacturers have included an impressive lifetime limited warranty on the unit’s housing (which rarely gets damaged due to ruggedness) and a six-year warranty on the unit’s refrigeration system. Therefore, if you choose to invest in this product, you can expect a befitting performance and lifespan for your money.


  • High moisture extraction rate
  • Compact and mobile
  • Auto-restart
  • Auto-pump
  • Lifetime-limited housing warranty
  • Six years warranty on the refrigeration system
  • Programmable humidistat
  • Mobility
  • Suitable for large-sized crawl space


  • Not budget-friendly
  • Fairly poor at disposing water

5) AlorAir LGR 85 Pint Commercial Dehumidifier with Pump

Special features: commercial dehumidifier, compact, HGV defrosting, waterproof, stackable design, digital display with touch button control, epoxy powder coating on coils, dimensions 22.8 x 13.7 x 17.3.

AlorAir LGR 85 Pint Commercial Dehumidifier with Pump it is very efficient and beneficial.
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The LGR 85 commercial dehumidifier has a simple but efficient design, being very compact and possesses handles at the top side for smooth movement around the home depending on the user’s area of need.

It features a complete seal circuitry, hence water-friendly and resistant; therefore, it can be used in cases of flood situations, which is an outstanding benefit for a crawl space dehumidifier.

Its design enables several of this item to be stacked on one another in cases of combined efforts from more than one of the unit, while an extra-long power cord gives you more convenience in relocating the unit without having to deal with looking for a new power outlet first.

It has a high level of moisture extraction rate, averaging up to 1.625 gallons per day, which is pretty useful and would serve your extremely humid needs.

A water pump is also built to balance the high moisture drawing, hence condensation rate, with a capacity to push the water as far as 10 feet at least, to a suitable destination.

Underflow temperature conditions, the HGV anti-frost system kicks in, hence enabling the unit to keep running, even at degrees as low as 20C. This comes in really handy during winter seasons. The auto on/off or timer feature of the unit allows the user to choose its starting and stopping time, and hence more flexibility on usage.

Filters are also built-in, that lasts for a great deal of time, after which they would have to be replaced, and though not very often, it still adds to the overall cost of operation with time.

It is able to serve large sized rooms of up to 2.300sqft, hence suitable for your needs though it’s less than most others on our list.


  • high moisture extraction rate,
  • five-year warranty,
  • auto restart,
  • extra-long cord,
  • able to work under low temperatures,
  • auto on/off,
  • auto pump drain, filter,
  • suitable for large-sized rooms, timer.


  • it is also expensive.
  • Poor customer support

Considerations for choosing the best crawl space dehumidifiers


The amount of noise your dehumidifier makes can be important if you buy an especially noisy model. You don’t want something you can hear up in your home, so make sure you do your research and read reviews to ensure you choose a model that won’t keep you up at night.

  • Humidity Removal

You need to make sure the dehumidifier you are buying is powerful enough to remove the humidity from the entire crawl space. You may not realize it, but they cover the entire footprint of your home. This can be a significant amount of square footage, so make sure you measure the volume of the area under your home before deciding if a model is powerful enough to cover it. A model that can remove 70 pints of water a day is usually enough although if you have a larger area you may want to look for a dehumidifier than remove 90 pints a day.

  • Drainage

Having a continuous and efficient drainage system is important when buying a crawl space dehumidifier. Since this is an appliance you have to access under your house, you don’t want to have to go under it several times a day to empty out a drain pan. Make sure that the unit you choose comes with a convenient continuous drainage system that requires very little maintenance.

  • Low-Temperature Operation

A dehumidifier needs to operate at a low temperature and have an auto-defrost function. With the auto defrost system, the unit will be able to prevent the inner parts of the dehumidifier from building up frost. Also, operating at a low temperature is something that is often required for a crawl space or basement.

  • Auto Reset

The auto-reset function is an important feature since it can restart the unit after a power outage and keep the settings for all the original functions. This is nice to have so you don’t have to make too many trips under your home.

How much does a crawl space dehumidifier cost?

The price ranges of crawls space dehumidifiers depend on the qualities it has to offer on performance. Expensive product is always those with a rugged design and more importantly, a high level of moisture extraction rate while possessing an auto drain pump for easy water outlet.

There are also cheaper ones, though, but for a functional unit, it would cost nothing less than a thousand dollars, but it is worth the investment.

Also Read: Best dehumidifier for grow rooms

Crawl space dehumidifier installation: how much does it cost to install a dehumidifier in a crawl space?

Installing the humidifier after purchase would incur extra costs, with professional installing almost costing as much as the unit sometimes, and could be as high as $1,500 to $2,000, depending on the area you reside and the service provider.

How to get rid of moisture on crawl space: a step by step guide

Stop water from getting into the crawl space by repairing leakages, including insulating cold water pipes and also foundational cracks.

  • Dry out the crawlspace by removing sources of moisture and stagnant water with a good crawl space dehumidifier.
  • Clean up crawl space, eliminating wet insulations and debris, also get professionals to clean up molds and mildew that have accumulated over time.
  • Keep moisture out of your crawl space using a crawls space encapsulation, and install a powerful dehumidifier to remove and prevent further moisture build up in the area.

Our Final Thoughts on Picking the best crawl space dehumidifier

The winner of the Best Dehumidifier for Crawl Space is the Aprilaire 1820 Pro Dehumidifier. This is an effective and compact dehumidifier for basements and crawl spaces that can remove up to nine-gallons of water a day. You can easily access this dehumidifier no matter where it is installed thanks to the front-mounted control panel that features an interactive display that is simple to use and set up.

The Aprilaire 1820 does not require emptying messy overflow trays, and you only need to clean or replace the filter once a year. Using corrosion-resistant aluminum coils, this dehumidifier helps to prevent leaks with its high-quality construction. Able to eliminate excess moisture to rid your home of dust mites, fungi, and bacteria, it can help to reduce symptoms that are associated with asthma and allergies as well as reduce incidences of respiratory infections and get rid of musty odors. The definite winner of the best Dehumidifier for Crawl Space is the Aprilaire 1820 Pro Dehumidifier hands down.

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