In this picture you can see the black spots that the homeowner was so worried about and she was correct. It was in fact mold since drywall is made up of organic material and if the humidity levels in a below ground space are not controlled, mold will grow on wood, paper and other organic material. Notice the old sump pump that is hidden in a makeshift box. Would you want that in your basement?
Crawl Space Repair & Basement Waterproofing Services
Foundation & Concrete Repair Services
Basement Finishing
Gutter Services