Waterproofing Applicators of GMX,W.R. Grace, Polyguard, Henry, ABAA, J-Drain products, Tremco,Carlisle, Karnak, NeoGard & Thoroseal. Termite Treatment We useBaseline Termiticide..., manufactured by FMC Corporation. Click herefor more information. Our experience in residential and commercial soil treatment includes work on commercial projects, single-family homes..., and multi-family homes. Why Potomac Waterproofing? We offer a 5 year warranty on all soil treatment services 10years experience 25,000,000 square feet of HUD Certified projects...