What is that strange stuff on my basement walls and should I be worried?

April 20, 2023

One of the most frequent questions that homeowners ask our inspectors is about the stains, powder, and other substances on the walls of their unfinished basement. The truth be told, any substance that appears on your basement walls could indicate an underlying problem that needs to be corrected.

If you see black or dark stains on your walls you probably have a major mold issue. Mold thrives and grows when there is high humidity. Sometimes, this issue can be controlled by installing a good dehumidifier to remove the moisture from the air. However, you should still call in a professional to inspect and remove the existing mold in your home. Mold removal and remediation is not a DIY (do it yourself) project and should be left to mold removal specialists like the Best Buy Waterproofing Mold Remediation Team. Very often, mold signals the presence of moisture in your foundation walls. If this is indeed the root cause of your mold issue, our team will determine if you have a groundwater infiltration issue that needs to be corrected and review available solutions for correcting the issue. By implementing a basement waterproofing system that provides adequate drainage and inhibits water infiltration, your basement will stay dry and dramatically improve the health of your home environment.

About the Author

Owner and founder Andrew A. Altman Sr. is an icon in the basement waterproofing industry. In a career that spans over 35 years, he has been interviewed by the news media and is considered by his peers as a leading industry expert. However, the most important matter to Mr. Altman, besides the effectiveness of his waterproofing system, is earning the trust of his customers.

About Best Buy Waterproofing

With over 35 years of experience in basement waterproofing, moisture control and structural repair, Best Buy Waterproofing founder, Andrew A. Altman Sr. is a top-rated industry veteran with a proven record of successful projects. In fact, the award winning, certified, professional staff at Best Buy Waterproofing, have a combined 70 years of experience in all aspects of the basement health industry. With A+ ratings from the BBB and Angi, and over 435 5-Star reviews from Google, Home Advisor, Yelp, and Facebook, Best Buy Waterproofing guarantees customer satisfaction.

Waterproofing Services Available Include:

Basement Waterproofing, Basement Ventilation, Mold & Mildew Remediation, Structural Repair, Crawl Space Repair, Sump Pump Systems, Moisture Control, Wet Basement Repair, Roofing Installation and Replacement, Intelligent Power Battery Backup Systems, Sub-floor Pressure Relief Systems, Basement Exterior Excavation, Basement Finishing, Concrete Lifting, Foundation Repair, Basement Door & Egress Windows, and all Concrete Work, including Concrete Stamped Stoops, Walkways, Patios, Floors, Dry Wall & Stud Replacement and more.

24/7 Emergency service

Basement Emergency? Best Buy Waterproofing is ready to respond 7 days a week, 24 hours a day. Call us today at 844-980-3707.

Recent Posts

Does Waterproofing add Value to your home?

Does Waterproofing add Value to your home?

In home remodeling today, the focus is usually on cosmetics – designing a dream kitchen, luxury owner’s bath or ultimate entertainment room. What is often forgotten when adding value to a home is your home’s infrastructure, the bones of your home...

read more