Quality Waterproofing

Quality Waterproofing The premier source for all St. Louis basement waterproofing, foundation repair, and improved in-home air quality. Everything we do makes homes healthier.

Quality Waterproofing is a locally owned and operated business that wants to carry on our 60-year tradition of integrity and transparency in the greater St. Louis area, providing great products and service at a great price. We’re the foundation repair company that can help you—and you can trust.

10/16/2026

Have we met? We're Quality Waterproofing + Insulation we've been around over 70 years and if it involves your foundation or keeping your home well insulated, we take care of it. Recently the St. Louis BBB honored us with the Torch Award for Ethics, they made this video to help explain how treating people well starts inside our company and flows out to our clients.

10/16/2026

🏆Winning the BBB Torch Award for Ethics is a tremendous honor and a meaningful reflection of QualityWaterproofing + Insulation’s commitment to integrity, trust, and exceptional service. We are grateful to our dedicated team and loyal customers, who inspire us to uphold the highest standards in everything we do.

09/18/2026

Your basement may not have started with good waterproofing💧 but it doesn't have to stay that way. We can inspect your basement and let you know the cost to waterproof but have you considered the cost of ignoring waterproofing?

1. Structural Damage One: of the most significant costs of ignoring basement waterproofing is the potential for structural damage to your home. When water infiltrates your basement, it can weaken the foundation and compromise the entire building.

2. Health Risks: A wet or damp basement is a breeding ground for mold and mildew. These microorganisms can release allergens and mycotoxins into the air, leading to health problems.

3. Reduced Property Value: Buyers are likely to be deterred by the prospect of dealing with water issues. Even if they do consider purchasing your property, they will likely negotiate a lower price.

4. Higher Energy Bills: A damp or wet basement can also lead to higher energy bills. The moisture in the basement can affect the insulation of your home, making it less energy-efficient.

5. Personal Belongings Damage: Basements are often used for storage, and ignoring waterproofing can result in damage to belongings.

6. Ongoing Maintenance Costs: Neglected basements often require more frequent maintenance. Whether it's continuously cleaning up water, patching up cracks and leaks, or replacing damaged materials, these ongoing maintenance costs accumulate.

We waterproof so you have confidence your home is safe. Call us 314-202-5000 for a free inspection from a certified expert.

08/20/2026

proper drainage and a sump pump to carry the water away from the house, now that's Quality Waterproofing!

Some inspections simply bring peace of mind and we're just as happy to provide that as we are a repair.
08/19/2026

Some inspections simply bring peace of mind and we're just as happy to provide that as we are a repair.

08/07/2026

this is the end result of poor outdoor grading and gutters that don’t work, the good news, even worst case scenarios can be fixed. Wondering about your basement, we’d love to help.

08/05/2026

If you have brand new gutters, it’s still important to step outside and observe them to make sure they’re working 💧 These gutters had gutter and they’re still getting clogged with debris from trees🌳 Gutter guards don’t mean maintenance free. Also notice the area where a downspout from a lower roof is adjoining the upper roof downspout? The area where they come together is backflowing water and not functioning properly. This home has upgraded 5 inch gutters, but the downspouts are for a 4 inch gutter 📏 if you see this, know larger downspouts should be installed.

08/03/2026

How are gutters and drains supposed to work? Here’s a great example, one thing worth noting, the distance is from the house where the water drains💧🏡

07/31/2026

This client noticed pooling outside their home causing leaks inside💧🏡 The pooling was caused by settlement on the concrete sidewalk and poor grading not flowing away from the home. It’s also caused by downspouts that aren’t properly routed away from the foundation.

07/31/2026

Storm clouds rolling in? Your foundation shouldn't be one more thing on your mind. When your home is waterproofed right, heavy rain stays exactly where it belongs: outside.

Address

200 S Elam Avenue, UNIT 200
Valley Park, MO
63088

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+13142025000

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