Basement Mold, Musty Smells & Humidity
Musty basement? Mold on walls or belongings? How moisture control, dehumidifiers and waterproofing stop basement mold from coming back.
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Mold needs moisture. A basement with humidity above roughly 60 percent, or with walls that stay damp, is an ideal place for it to grow. Cleaning mold without fixing the moisture only brings it back.
How contractors solve it
- Find and stop the water source (leaks, seepage, condensation)
- Install drainage or crack repair where water enters
- Add a sealed sump pit and wall vapor barriers
- Install an energy-efficient basement dehumidifier
- Remove or treat affected materials
Serious mold contamination may require a certified mold remediation company. Your contractor can advise you.
Related guides
FAQ
Common questions
What humidity should my basement have?
Ideally between 30 and 50 percent, and no higher than 60 percent.
Is basement mold dangerous?
Mold can trigger allergies and breathing problems, especially for sensitive people. Removing the moisture source is the key step.
Service areas
Where we can help
Pennsylvania
More service areas
- North Jersey & the Jersey Shore
- Long Island (Nassau County), NY
- Maryland (Baltimore & Washington suburbs)
- Washington, DC
- Northern Virginia
- Minneapolis – St. Paul, MN
- Tennessee (Nashville, Knoxville, Chattanooga & more)
- Metro Atlanta, GA
- Charlotte, NC & Rock Hill, SC
- Portland, OR & Vancouver, WA
- Alabama (Birmingham, Huntsville, Montgomery, Mobile)
- Indianapolis & Central Indiana
- Chicago & suburbs, IL
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