Looking for a permanent dehumidification system that will help solve the issues you are having with moisture, mold, or mildew in your basement? Then you have come to the right place.
Before we get into the specifics and recommended models of dehumidifiers, we want to explain basic problems that indicate the need for a unit in your basement.
What Causes a Wet Basement?
Excess moisture in basements is very common. The soil and ground that surround your home can easily transfer inside through walls, windows, vents and more. Most basements have limited amounts of sunlight and air flow that also prohibit moisture from escaping. Excess moisture can lead to higher indoor humidity and mold growth. If you are experiencing any of the problems listed below, adding a dehumidifier to your basement will help prevent mold in your home or property.
How to Identify & Resolve Basement Mold Issues
Does your basement feel “wet?”
If you walk down into your basement and your skin feels tangibly damp, humidity levels are higher than they should be. If the ground surrounding your home is wet and your basement is not, there is huge potential for the water to enter your home; water dispurses from areas of high concentration to those of low concentration.

Did you know… 1 inch of rain is equal to 27,154 gallons of water (per acre). That means 1 inch of rain on a 2,800 sq ft house is equal to 1,743 gallons.1
Odors
Typically paired with a musty smell, high humidity is known to intensify odors. A musty smell in the basement can indicate a variety of problems including the growth of mold and/or mildew, or even possible rot.
A measured humidity level greater than 55% – The surest way to know if you are having humidity issues in your basement is to purchase a hygrometer and measure your basement’s humidity level yourself. Not to worry, an inexpensive ($10) hygrometer will do the job. If the meter reads greater than 55% humidity, you know your basement is more humid than it should be.
Dust Mites
Dust mites are in roughly 4 out of 5 homes in the United States, according to the American Lung Association. A great way to fight these common pests is to keep your home below 50% humidity, including your basement.
Frost/Ice Build Up
If you’re seeing frost/ice buildup on cold surfaces, this is another indication that the moisture level in your basement is higher than should be.
Visible Rot/Decay
The number one way for something to rot is with the presence of moisture. Wood is known to change color, structure and even firmness if moisture levels are higher than normal for extended periods of time. This could result in costly structural repairs.
Peeling/Cracking Paint
Blistering, cracking, or peeling paint on walls, floors and other painted surfaces is also a good way to tell you’re having humidity issues.
We’ve got you covered!

The IW25 dehumidifier makes a great dehumidifier for basements. Not only does the installation take a fraction of the time, but it’s a fraction of the cost when compared to other portable dehumidifiers and Whole House Systems. The IW25 also has special features that other dehumidifiers don’t offer. In the event of a power outage, the IW-25 dehumidifier was designed to automatically restart, keeping your home protected. This dehumidification unit drains directly into existing plumbing (or a hub drain if applicable), or can be used with the optional Integrated Condensate Pump, so there’s no hassle with emptying condensate from reservoir tanks.
Designed for everyday use the IW25-4 is ENERGY STAR® Certified, using less energy to save you money on electric bills. Maintenance is minimal, easily access the reusable MERV-8 air filter monthly. Even better the unit is tankless, so you don’t have to worry about removing the water from the reservoir tank, or an overflowing unit. It runs quiet (sound levels 45 dbA** — comparable to a mini refrigerator) and will not intrude your family’s daily activities but will improve comfort and health. The dehumidification system includes a 5 year warranty on parts and labor (optional accessories not included) providing moisture control in your home for years to come.
Why we recommend the IW25 IN Wall / On Wall Dehumidification System for basements:
Quiet | Sleek | Modern
- Recesses IN Wall or Mounts ON Wall
- Designed to fit within 16″ O.C. stud spacing or Hang on wall
- Directly in 2 x 6 walls
- Through 2 x 4 walls
- Installs easily for new construction or retro-fit applications
- Sound levels less than 45 Dba**
- ETL listed
- Uses R134A Refrigerant 190G
- Plastic front cover w/ metal chassis
- Tamper proof grill screws
- On/Off switch & humidity control behind the front cover
- Built-in digital humidistat
- MERV-8 air filter
- Washable and re-usable
- Automatic restart (in the event of power failure)
- Hardwired or Plug in Option (standard 120V outlet)
- 10′ cord
- alternate power routing
- Drains directly to plumbing
- 10′ condensate hose
- Easily connected to hub drain, hard pipe or to a drain (depending on install location)
- Versatile drain routing

If you are looking for a quick, easy, affordable solution to fight moisture (and mold, and mildew) in your basement, the ENERGY STAR® Certified IW25 IN Wall / ON Wall Dehumidifier is the solution for you..
*Layout and moisture conditions vary in every apartment and home; in typical conditions, the IW-25 can maintain the RH of 59% or less but is not guaranteed.
**dBA is tested in a controlled environment; levels may vary due to install and install location