St. Louis Waterproofing & Foundation Repair
St. Louis Waterproofing & Foundation Repair
St. Louis Waterproofing & Foundation Repair
When water gets into your home, it's a big problem. We waterproof homes and repair foundations so you have confidence your home is safe.
When water gets into your home, it's a big problem. We waterproof homes and repair foundations so you have confidence your home is safe.
When water gets into your home, it's a big problem. We waterproof homes and repair foundations so you have confidence your home is safe.
"We had water problems in our basement. Andrew was willing to not only answer our call, but offered to walk us through it via video call. He then went above and beyond and offered solutions as well as a written report that explained everything."
"We had water problems in our basement. Andrew was willing to not only answer our call, but offered to walk us through it via video call. He then went above and beyond and offered solutions as well as a written report that explained everything."
Samantha M.
O'Fallon, MO
The Guarantee
The Guarantee
We protect your home from water damage the right way
We protect your home from water damage the right way
You learn the real problem
Anyone can offer to fix a crack without knowing the underlying cause. We find the true problem so that your money isn't wasted.
You get the right fix
We don't just fix cracks; we create a solution system that addresses the root of the issue so that you don't call us back.
You're left with a clean & dry basement
When we work on your home we treat it carefully. And when we're done, your basement will look cleaner than before.
Waterproof Results
Our affordable experts have been waterproofing St. Louis homes and businesses for generations.
70,000+
Successful Jobs
70+
Years in Business
4.9
Review Rating
330+
Google Reviews
Get Our Free Foundation Crack Guide
Worried about a crack in your basement? Download our free guide to see how big of a problem you might be dealing with.
How it Works
How it Works
The Process
Dealing with a wet basement can be overwhelming. But we've taken the mess out of it.
1
Contact us
Our inspectors will develop a custom plan along with a free estimate
1
Contact us
Our inspectors will develop a custom plan along with a free estimate
2
Property repair
Our certified repair crews will fix your broken foundation
2
Property repair
Our certified repair crews will fix your broken foundation
3
Enjoy your home again
Rest easy knowing you are covered by our craftsmanship warranty
3
Enjoy your home again
Rest easy knowing you are covered by our craftsmanship warranty
Reviews
Customer Testimonials
We think we're good at waterproofing, but don't take our word for it. Listen to what our customers have to say!
Greg Dunn and Quality Waterproofing were very responsive when we had a sump pump problem. They were able to get a tech here even with the high workload after a storm, spotted the problem, and got it fixed quickly.
Ted W.
Villa Ridge, MO
I have trusted Quality Waterproofing with many home projects and they have never failed me! Andrew Timp and the service team are amazing! Will continue referring them as well as using them for my own projects!
Jade P.
St. Louis, MO
Quality Waterproofing is a company of integrity. They focus on “going the extra mile” to see that their customers receive exactly what’s needed at reasonable cost. They don’t oversell. In fact they will counsel you to follow the most prudent approach.
Randall K.
St. Louis, MO
They were amazing! They found a plumbing problem that could be the water issue. Rather than recommending expensive work off the bat like another company I contacted, they recommended I fix the plumbing issue first and see if I still had the problem. Fantastic.
Kari L.
St. Louis, MO
We had four leaking cracks in our basement repaired and we’re very happy with the service received. All of the employees were very kind and professional. The repairs were done quickly and no messes were left! Highly recommend!
Jessica H.
Pacific, MO
They didn’t try to sell on anything unreasonable and even recommended alternative solutions as to not run my bank dry. Will be calling for any and all related issues in the future.
Ali K.
St. Louis, MO
Eric Wulff is the most honest and pleasant person I have invited into my home to give me a bid on a job.
Donnie H.
St. Louis, MO
Reviews
Customer Testimonials
We think we're good at waterproofing, but don't take our word for it. Listen to what our customers have to say!
Greg Dunn and Quality Waterproofing were very responsive when we had a sump pump problem. They were able to get a tech here even with the high workload after a storm, spotted the problem, and got it fixed quickly.
Ted W.
Villa Ridge, MO
I have trusted Quality Waterproofing with many home projects and they have never failed me! Andrew Timp and the service team are amazing! Will continue referring them as well as using them for my own projects!
Jade P.
St. Louis, MO
Quality Waterproofing is a company of integrity. They focus on “going the extra mile” to see that their customers receive exactly what’s needed at reasonable cost. They don’t oversell. In fact they will counsel you to follow the most prudent approach.
Randall K.
St. Louis, MO
They were amazing! They found a plumbing problem that could be the water issue. Rather than recommending expensive work off the bat like another company I contacted, they recommended I fix the plumbing issue first and see if I still had the problem. Fantastic.
Kari L.
St. Louis, MO
We had four leaking cracks in our basement repaired and we’re very happy with the service received. All of the employees were very kind and professional. The repairs were done quickly and no messes were left! Highly recommend!
Jessica H.
Pacific, MO
They didn’t try to sell on anything unreasonable and even recommended alternative solutions as to not run my bank dry. Will be calling for any and all related issues in the future.
Ali K.
St. Louis, MO
Eric Wulff is the most honest and pleasant person I have invited into my home to give me a bid on a job.
Donnie H.
St. Louis, MO
Reviews
Customer Testimonials
We think we're good at waterproofing, but don't take our word for it. Listen to what our customers have to say!
Greg Dunn and Quality Waterproofing were very responsive when we had a sump pump problem. They were able to get a tech here even with the high workload after a storm, spotted the problem, and got it fixed quickly.
Ted W.
Villa Ridge, MO
I have trusted Quality Waterproofing with many home projects and they have never failed me! Andrew Timp and the service team are amazing! Will continue referring them as well as using them for my own projects!
Jade P.
St. Louis, MO
Quality Waterproofing is a company of integrity. They focus on “going the extra mile” to see that their customers receive exactly what’s needed at reasonable cost. They don’t oversell. In fact they will counsel you to follow the most prudent approach.
Randall K.
St. Louis, MO
They were amazing! They found a plumbing problem that could be the water issue. Rather than recommending expensive work off the bat like another company I contacted, they recommended I fix the plumbing issue first and see if I still had the problem. Fantastic.
Kari L.
St. Louis, MO
We had four leaking cracks in our basement repaired and we’re very happy with the service received. All of the employees were very kind and professional. The repairs were done quickly and no messes were left! Highly recommend!
Jessica H.
Pacific, MO
They didn’t try to sell on anything unreasonable and even recommended alternative solutions as to not run my bank dry. Will be calling for any and all related issues in the future.
Ali K.
St. Louis, MO
Eric Wulff is the most honest and pleasant person I have invited into my home to give me a bid on a job.
Donnie H.
St. Louis, MO
Videos & Articles
Videos & Articles
Waterproofing & Foundation Repair Knowledge Base
Learn how to guard your home against water and structural damage.
Nov 17, 2025
How Clean Gutters Protect Home Foundations: Why This Simple Task Makes a Big Difference
Clean gutters protect home foundations by preventing soil erosion, hydrostatic pressure, and basement leaks. Learn how gutter maintenance keeps your foundation safe and your home dry.
Nov 17, 2025
How Clean Gutters Protect Home Foundations: Why This Simple Task Makes a Big Difference
Clean gutters protect home foundations by preventing soil erosion, hydrostatic pressure, and basement leaks. Learn how gutter maintenance keeps your foundation safe and your home dry.
Nov 17, 2025
How Clean Gutters Protect Home Foundations: Why This Simple Task Makes a Big Difference
Clean gutters protect home foundations by preventing soil erosion, hydrostatic pressure, and basement leaks. Learn how gutter maintenance keeps your foundation safe and your home dry.
Nov 17, 2025
How Clean Gutters Protect Home Foundations: Why This Simple Task Makes a Big Difference
Clean gutters protect home foundations by preventing soil erosion, hydrostatic pressure, and basement leaks. Learn how gutter maintenance keeps your foundation safe and your home dry.
Nov 7, 2025
Foundation Crack Identification: How to Know What’s Normal and What’s Not
Learn how to identify foundation cracks, when to worry, and what horizontal, diagonal, or stair-step cracks mean for your home. Protect your foundation with expert insight from Quality Waterproofing.
Nov 7, 2025
Foundation Crack Identification: How to Know What’s Normal and What’s Not
Learn how to identify foundation cracks, when to worry, and what horizontal, diagonal, or stair-step cracks mean for your home. Protect your foundation with expert insight from Quality Waterproofing.
Nov 7, 2025
Foundation Crack Identification: How to Know What’s Normal and What’s Not
Learn how to identify foundation cracks, when to worry, and what horizontal, diagonal, or stair-step cracks mean for your home. Protect your foundation with expert insight from Quality Waterproofing.
Nov 7, 2025
Foundation Crack Identification: How to Know What’s Normal and What’s Not
Learn how to identify foundation cracks, when to worry, and what horizontal, diagonal, or stair-step cracks mean for your home. Protect your foundation with expert insight from Quality Waterproofing.
Oct 21, 2025
How to Keep Water Away from Your Foundation: Proven Solutions To Protect Your Home
Learn how to keep water away from your foundation with expert tips on drainage, grading, gutters, and waterproofing. Protect your home from leaks, cracks, and costly foundation damage.
Oct 21, 2025
How to Keep Water Away from Your Foundation: Proven Solutions To Protect Your Home
Learn how to keep water away from your foundation with expert tips on drainage, grading, gutters, and waterproofing. Protect your home from leaks, cracks, and costly foundation damage.
Oct 21, 2025
How to Keep Water Away from Your Foundation: Proven Solutions To Protect Your Home
Learn how to keep water away from your foundation with expert tips on drainage, grading, gutters, and waterproofing. Protect your home from leaks, cracks, and costly foundation damage.
Oct 21, 2025
How to Keep Water Away from Your Foundation: Proven Solutions To Protect Your Home
Learn how to keep water away from your foundation with expert tips on drainage, grading, gutters, and waterproofing. Protect your home from leaks, cracks, and costly foundation damage.