My Crawl Space Smells

Getting a Bad, Musty Smell from Your Crawl Space?


Despite what many home owners think, it is not normal for their crawl spaces to have a foul, musty or dank odor. In many homes in the Philadelphia and NJ areas, the odor gets so bad that you can actually smell it in the main home (especially above the crawl space).

What Causes This Problem?

Crawl space waterproofing before picture

Before Crawl Space Waterproofing – Dirty, Wet, Damp and Full of Mold

The issue is usually caused by mold. Unfortunately, very few crawl spaces are water proof. They allow in water, moisture and air – the perfect recipe for mold growth.

You are smelling a combination of new mold growing and the old, dead spores piling up. This is what makes the “musty” odor. And, not only is it unpleasant, it is also extremely unhealthy.

Up to 60% of the air in your home is cycled through your crawl space or basement. So, if there is mold and other hazardous debris down below, they will end up in your main air supply. This can make your family sick, aggravate allergies & asthma and can even be deadly to small pets and children.


Other causes include the waste and exoskeletons of bugs, the waste of rodents and snakes. An unprotected crawl space smells bad and attracts some scary and unhealthy visitors.

How to Get Rid of Bad Crawl Space Smells

“Cleaning” your crawl space with bleach and wiping the mold and mildew off of the walls and ceiling is not going to solve the problem. The mold will disappear for a few days, but, it will return with a vengeance. The

Crawl space waterproofing after picture

After Crawl Space Waterproofing – No More Mold, Bad Smells or Water

longer water, moisture and organic material like insulation and wood interact, the longer mold will continue to grow and harm your family.


  • Waterproofing your crawl space works by drying out the area and preventing water and moisture from re-entering (no water or moisture means no mold growth)
  • Mold and it’s spores are killed during our waterproofing process (if the spores remain in the air, mold will re-grow…we get rid of them with our negative air containment system)
  • You Get a Free Estimate and In-House Financing is available for you


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We provide crawl space waterproofing services in all of Philadelphia county, Bucks, Delaware, Lebanon, Lancaster, York, Carbon, Pike, Wayne Susquehanna, Bradford, Sullivan Luzerene, Wyoming, Lackawanna, and Lehigh counties in PA and all of NJ and DE.


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