Quality Waterproofing is St. Louis' premier waterproofing, foundation repair, and air quality company. Thousands of families have entrusted us to keep their homes dry over our proud, 60 year history. We’re more than capable of providing custom solutions for our region’s diverse architectural designs and structures—centuries old and brand new alike. We may not be the biggest basement waterproofing or foundation company in the area. And that works to our advantage. We can be as thorough as possible to make wet basements dry and seal every crack that might lead to further foundational issues later down the line. We stand by every home we improve and pay strict attention to every detail to make sure everything we do is right the first time. All of our work can be backed with a lifetime warranty and completed by employees who undergo an extensive background check to treat your residence with the care and professionalism it deserves. If you have a leaky basement, water seepage, cracked or bowing foundation, you can trust our stronger-than strong materials and vast knowledge to keep your home healthy and dry.