Quality Waterproofing + Insulation

4.9
371 reviews from Google

Water intrusion and poor insulation lead to costly damage and unhealthy living conditions. Quality Waterproofing + Insulation specializes in foundation repair, waterproofing, and insulation for St. Louis homeowners so your home stays dry, efficient, and worry-free for years to come.

Call us! +1 314-455-7434
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Customer's reviews

Eric Wulff’s honest assessment of my basement leak was awesome! He saved me potentially thousands of dollars of unnecessary foundation work. I was contemplating spending hundreds or even thousands of dollars and the irony would have been that the “drip” would have still resulted in water in my basement. Eric’s holistic evaluation/approach revealed that an old copper pipe was leaking from ceiling, NOT an issue with my foundation. Two other companies came in and suggested significant repairs, one of which would have even caused me to tear up a recently refinished bathroom. It is so refreshing and appreciated that this company is here for the customer, not just about the companies bottom line! I can assure you that I’ll be referring Eric and Quality Waterproofing any chance I get! ~ Katie H
I would like to thank your company for installing my waterproofing system in my home. Also thank your for sending Jacob, Dennis Bader, Eli G. Clayton to service my home. They were very friendly, professional, hard working to include dedicated to making sure I was satisfied with my installation, I REALLY appreciate Jacob’s IMMEDIATE fast action to resolve the small delay/issue within the steps in my home . His knowledge and EXCELLENT customer service made my waterproofing experience SOOOO smooth. I will definitely be referring my friends and family to your company for their waterproofing needs. This was my first experience with doing business with Quality Waterproofing and if there is a way to give a bonus or a raise to Jacob, Dennis Bader, Eli G. Clayton I would definitely say THEY are worth that and MORE!!!!! ~ Youlanda S
We got 4 bids for waterproofing our basement after the sump pump couldn’t keep up with the high table water and the basement mildly flooded. Eric visited us in a timely manner to offer a quote. He is very friendly, extremely knowledgeable, and gave us a great education about what was going on. One company we contacted for a bid did not even bother to return one after their visit! Others tried to do more work than what was needed. Although we have some downspout issues to take care of and needed a new sump pump before proceeding, Eric offered a quote that was specific to our needs. He also provided great follow up to see how things were going! If we need to proceed with the work, we will definitely use Quality Waterproofing! I highly recommend their services. ~ Jacqueline J
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Blog

Most sump pump failures happen during the first storm after a long dry summer. A pump that sat unused from May through August is not the same pump i… Posted on: July 20, 2026
Your basement has been sitting in peak mold conditions since May. St. Louis outdoor humidity averages above 70% in July and August. In an unmanaged… Posted on: July 8, 2026
Your attic hit 140°F last month. Here's what that cost you. In a St. Louis July, attic temperatures regularly exceed 140°F. If your attic floor isn'… Posted on: June 30, 2026
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Contact information

Phone +1 314-455-7434
Address
200 S Elam Ave UNIT 200 Valley Park 63088
Sunday Closed
Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 5:00 PM
Saturday Closed

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