Drywall is the perfect place for mold to propagate. In most cases, once the mold has taken hold, the only solution available is removing the basement drywall itself. You can prevent this by avoiding storing paper or food in areas with high humidity, and you should be aware of sources of moisture, such as clothes left in a washing machine and potted plants. If your basement is always humid, using a dehumidifier may be just the thing you need to keep your basement drywall free of mold. Before you purchase the dehumidifier, you should know that an air conditioner can remove a great deal of humidity. We recommend trying your air conditioner first before purchasing a dehumidifier. Sometimes mold in your drywall will refuse to go away, even after you attempt to clean it out. Mold that never goes away is an indicator of a much larger issue, such as problems with plumbing, leaks in your roof or problems with rainwater draining properly. If you find this issue, you should consult a professional service, such as DryPatrol.