Crawl Space Dehumidifier Installation & Service

Crawl Space Dehumidifier – A Key Component


The Delmarva peninsula is subject to long periods of high humidity. Humid air in the crawl space is one of the primary reasons for microbial growth, musty smells, and wood rot under the home. In order to keep a healthy crawl space and/or basement, it’s essential to control moisture levels at or below 60% relative humidity. Crawl space dehumidifiers are a key component when managing moisture levels underneath a home.

Benefits of a Crawl Space Dehumidifier


  • Prevents microbial growth in your home
  • Prevents musty odors
  • Reduces strain on HVAC systems
  • Prevents costly wood rot by reducing moisture in the wood structure of the home
  • Improves air quality in your home

Why Is Air Quality in the Crawl Space Important?


It’s important to understand how air moves through the home via the “stack effect.” As warm air exits the structure through the roof system it creates a negative pressure in the home. This negative pressure causes new air to be drawn from outside through the doors, windows, crawl space vents, and any other loosely sealed areas. Because of this, research shows that 40-60% of the air we breathe in our home comes from our crawl space. Therefore, it’s very important to keep the crawl space dry to promote good air quality throughout the home. If moisture levels under the home go unchecked, these musty odors can easily enter the living space above.


Why Are Crawl Space Dehumidifiers Essential?


In Delmarva, the average relative humidity ranges from 68-71% throughout the year. Why is this important? Mold can grow when the relative humidity in the air is above 60%. Therefore, a vented crawl space like the majority of homes in the Guardian Crawl Space service area constantly brings humid air into the crawl space due to the “stack effect.” This consistent source of humid air entering the crawl space can cause many problems not only in the crawl space but also in the living area of the home. A properly sized dehumidifier will keep relative humidity levels at or below 60% to prevent mold and wood rot. Contact us for the right dehumidifier and proper installation!


The Dehumidifier We Recommend


At Guardian, we know how important a crawl space dehumidifier is for protecting your home long-term. Therefore, we require a unit that is efficient, reliable, requires very little maintenance, and is constructed for operation in a damp crawl space. This is why we choose Aprilaire Dehumidifiers. In our expert opinion, these are the most reliable dehumidifiers on the market. Since 1954, they have been the industry leader for crawl space dehumidification. They are made in the USA and offer the best-automated water discharge system, filter, fan, efficiency, quietness, built-in humidity controls, and overall durability. You will not be disappointed with the Aprilaire Dehumidifiers!

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Guardian Crawl Space Company


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