Basement Systems USA, is your local, family owned contractor for basement waterproofing and finishing as well as crawl space repair, mold removal and foundation repair. 410-858-4610 With international resources through the Basement Systems National Network and a focus on customer satisfaction we make sure you receive only quality work and are completely satisfied. Our company currently owns 31 Patent's in state-of-the-art products that can help you with your basement needs.