Today, Vulcan Basement Waterproofing remains the nation’s oldest, largest and most experienced basement waterproofing company. As the nationally acclaimed leader in our field, Vulcan continues to look for new and better ways to help our customers get their basement water problems under control. We are not just in the waterproofing business...we invented it! Vulcan Basement Waterproofing is not a franchise and we do not subcontract any work. When you do business with Vulcan, it’s Vulcan who does the work.