Mold in Winter: Learn Where it Commonly Grows and How to Prevent It

Mold is a harmful organism that can negatively affect you and your home. The potential for mold formation is greater during the winter, which is why you should take extra precautions during this time. Dehumidifiers and exhaust fans can help remove the moisture from your home, but there’s more you should do. Most importantly, checking and maintaining the areas where mold and moisture are most likely to accumulate. These are typically areas that are prone to decreased airflow, such as the basement. Below is a list of the common vulnerable areas and how you can limit or prevent mold growth in those places.

Attics and Crawlspaces

When searching for mold growth, attics and crawlspaces are often overlooked. However, they’re two of the most common areas for mold formation. Professionals like our team at Brothers in Grime will always check these spaces for mold growth. Growth in these areas is typically identified by a musty or ‘moldy’ smell. If you encounter this smell or have symptoms of an allergic reaction (sneezing, coughing, runny nose and eyes, or other respiratory issues), call our team for a mold inspection. Proper insulation and/or fans in the attic and crawlspaces can help prevent mold growth.


Basements are perhaps the most notorious breeding ground for mold. Limited airflow, poor insulation, faulty or leaky plumbing, and excessive water backflow or backup can make any basement vulnerable to moisture buildup. To combat this, you should do a few things, including:

  • Having your plumbing checked to ensure proper drainage and flow
  • Turning on a dehumidifier
  • Upgrading the insulation
  • Fixing leaks and broken plumbing fixtures
  • Using a fan in the moistest areas

Taking these preventative measures will help keep your basement dry and the mold away.

Windows and Window Sills

The cold outside and the heat inside can cause condensation to build up on and around windows. Window sills are especially vulnerable to this type of moisture. This also makes them especially vulnerable to mold formation. Since mold often forms inside the wood of window sills, if you notice excessive condensation, call a professional like Brothers in Grime to check for mold there.

Areas Around Appliances

Areas around appliances that use water and/or heat (refrigerators, dishwashers or washers and dryers) are also often overlooked as breeding grounds for mold. Because these areas can be small or almost impossible to reach, mold can grow around or below them and wreak havoc. Call a specialist like Brothers in Grime to inspect for mold in these hidden areas. Keeping these areas dry, however, could prevent mold growth. Remember to turn on exhaust fans after using appliances located in the kitchen or bathroom, make sure your refrigerator’s drip pan is dry, and use a dehumidifier to combat heat and moisture from the washer and dryer.

Remember, if you suspect mold, don’t delay! Tackle the problem head on by giving us a call for a thorough mold inspection.

Leave a Reply