Basement Waterproofing St. Louis MO
Waterproofing your basement isn’t just about staying dry—it’s about protecting the structure, health, and value of your home. At Drainage Team, we know that most basement water problems start on the exterior, not inside the foundation walls. That’s why we solve water intrusion at the source, before it ever reaches your basement.
Uncontrolled roof runoff, downspout discharge, and surface pooling near the foundation are the first signs of exterior drainage failure. Once these issues are corrected, any remaining leaks are often caused by hydrostatic pressure—water pushing through the base of foundation walls or cracks in the floor slab.
Our team uses a balanced approach to eliminate these problems permanently. Exterior French drains relieve hydrostatic pressure and protect your foundation, while interior systems with sump pumps act as the “spare tire”—a secondary line of defense for extreme weather.
Every project begins with a complete inspection of your property, inside and out. We evaluate your drainage, foundation, and moisture conditions to design a waterproofing system tailored to your home’s specific needs.
With decades of waterproofing expertise, Drainage Team delivers solutions that stop leaks, reduce structural stress, and provide lasting protection from the outside in.
Schedule your on-site consultation today and discover why homeowners across St. Louis trust Drainage Team for basement waterproofing done right—the first time.
Prevent basement flooding now! Contact our team for the best basement waterproofing solutions.
- Basement Perimeter Systems
- Footing Drainage Systems
- Concrete Foundation Wall Waterproofing
- Cinder Block Waterproofing
- Natural Stone Wall Waterproofing
- Basement Floor Drainage Systems
- Interior Sump Pump Systems
- Exterior Sump Pump Systems
- Basement Door Drainage Systems
- Interior Foundation Crack Repair
- Exterior Foundation Crack Repair
- Floor Crack Repairs
- Sub-Floor Humidity Control Systems
- Water Heater Failure Systems
- Exterior Foundation French Drains
- Exterior Downspout Piping
Why Is Basement Waterproofing Needed?
Clay Bowl Effect
As a foundation structure is built, soil is removed to install the foundation structure. When this area is backfilled, the pressure of the loose soil puts pressure on the foundation walls causing problems. Moreover, this allows water to collect in this backfilled area around the foundation causing a "clay bowl" effect. The end result is cracks in the foundation or leaking water.
Hydrostatic Pressure
Hydrostatic pressure is constantly being applied on the walls by saturated soil. These forces can become too much for the walls, resulting in cracks or inward movement. Moreover, water will easily find its way into the home through any seams in the foundation footing, or cracks, therefore causing foundation water seepage and jeopardizing structure stability.
Clogged Exterior Footing Drains
A foundation footing drain is installed on the outside of the home or building to help keep water from collecting near the foundation. Installed at the time of construction, these drains become clogged easily and are difficult to clean and flush. Another problem with exterior footing drains is improper piping; they are often constructed with corrugated, cheap piping that is not properly sloped.
Poor Exterior Drainage
Poor exterior drainage may lead to water leaking into the basement. To protect your basement, make sure outdoor drainage is properly piped in PVC and water discharged far from the foundation. Moreover, it is also important to make sure these pipes are always working as they should. So, cracked or collapsed lines may result in leaking water and a wet basement.
Ineffective Sump Pump System
Installed decades ago with undersized and outdated pumping methods, many sump pump systems will exhibit signs of problems when moisture is detected in the basement. Unless you're willing to spend more on continuous "fixes" than just replacing the system altogether, the most prudent course is to have a new, commercial grade system installed. Not only will you protect your property, you will increase the value.
Wet Weather in St. Louis MO
Weather in Missouri is unpredictable. Therefore, record rainfalls seem to be a frequent occurrence which causes water to accumulate around foundations because it has nowhere to go. Moreover, wintertime moisture and snow-melt also does not allow the ground to absorb any sunlight to dry it out. This leads water to finding its way inside through saturated soils and wall cracks.
Drainage Team Basement Waterproofing Process
Property Protection
A successful basement waterproofing installation will stop water intrusion and help prevent mold and mildew growth, which affects your home’s value. Moreover, to get the best results, you need to choose a company who provides high-quality products with excellent warranties. You’ll also want to make sure that the company will protect your belongings and keep your house clean by protecting your property during the project.
Jobsite Cleanliness
We are committed to providing you with the best installation experience possible. Moreover, we make sure that our installation teams are clean and neat on site, and we make sure to use proper safety gear in order to protect your basement from any damage.
Breakout for System
Excavating for this project needs to 7” out from the wall and 4”- 6” deep (down to the footing) in order for the our waterproofing system to be installed.
Unlike our competitors, we leave more of your floor in your basement intact with our special waterproofing system. The result is a dry, clean basement floor with a fraction of the mess and disturbances which some other basement waterproofing companies create.
Superior Sub-Floor Drainage System
Our interior basement waterproofing system is engineered to handle a wide range of water problems and foundation configurations. Designed through years of field experience and precision engineering, it provides fast, reliable drainage beneath the basement floor—without compromising the structural integrity of your footing.
Industry experts agree that an interior sub-floor system is one of the most effective methods for keeping basements dry and protected. Our modern installation approach moves water efficiently and discreetly, ensuring long-term performance and a clean, dry basement environment.
Bulkhead Drains
A bulkhead drain is an optional channel drain installed on the interior of your basement (and on some occasions, on the exterior) to protect the basement floor of your home in the event water starts flowing through entrances. This channel system collects and transports water directly into your waterproofing system.
High-Performance Sump Pump Pit
Our high-performance sump pump pit is engineered to provide reliable protection against basement flooding. Designed to serve as the core of our interior waterproofing systems or as a stand-alone solution, it efficiently collects and removes water before it can cause damage.
Each pit features a durable, perforated polyethylene basin surrounded by clean, filtered gravel to promote optimal water flow and debris separation. A float-activated alarm provides an early warning in the event of pump failure or power interruption, offering peace of mind that your property remains protected, even during severe storms.
Installed with precision and built for longevity, this pit represents the heart of our interior waterproofing design – delivering dependable, long-term defense against water intrusion and basement flooding.
Re-Installing Floor
The next step in a basement waterproofing process is re-installing the sections of concrete that were removed during the excavation for the new drainage system.
We mix a custom blend of concrete with additives to ensure the new areas will be as strong or stronger than the removed ones.
Trenchless Waterproofing
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Finished Installation
Work area is swept and vacuumed prior to the re-installation of concrete. Once the concrete is installed, the final job site cleanup is completed. Our goal is to leave the area we worked in cleaner than when we arrived… another guarantee is that the area will be dry and water free, permanently!
We recommend our clients allow the new concrete dry 3-7 days before starting your basement remodeling projects, re-installing studs, etc.
Battery Backup
The power goes out and your excess rain water starts collecting in your basement, leading to a potential flood. Use a battery back-up or generator system to protect against flash floods during a power outage.
However, battery backups are not 100% reliable during lengthy power outages. We recommend installing a power generator for 100% flood protection during power failures.
Discharge Piping
Unlike others, we pay close attention to where we discharge water from the sump pumps. We install schedule 35 PVC piping on the exterior of the home, which is the most durable for exterior stormwater drainage. We analyze the impact of discharging water and ensure that our measurements are distributed far enough away from your foundation – all while making sure they comply with the entirety of your stormwater management plan.
Freeze Stop Connection
The freeze stop connection guards against exterior discharge lines freezing in cold winter climates, like in St. Louis Missouri when many basements flood because of frozen discharge lines! The freeze stop connection prevents problems that can arise with frozen exteriors.
We Are Your Basement Waterproofing Solution
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Trusted Waterproofing Expertise
We use only the highest-quality materials and proven waterproofing methods to ensure lasting protection for every basement project. With more than three decades of experience, Drainage Team designs and installs advanced waterproofing systems using industry-leading components and engineering practices.
As an independent contractor, we’re not limited to a single manufacturer or product line, allowing us to select the best materials and techniques for each unique property. Every system we install is built for performance, durability, and long-term reliability, earning the trust of homeowners and property managers across the St. Louis region.
Learn more about our waterproofing components in our Installations Items Guide.
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Quick Installations
Installation crews complete most waterproofing projects in 1-4 days. Our patented waterproofing system is permanent and has an extensive life cycle, as well as innovative design features to simplify installation.
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Crew Expertise
One of our professional storm water management teams will ensure a quality system. These are experienced professionals that have the necessary skills and knowledge to install a waterproofing system which won’t break or need repairs.
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Affordable Systems
A lifetime warranty and quality components make our basement waterproofing system the value driven choice.
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Experience
It’s been decades since our passion for stormwater problems developed, which has allowed us to create the best solutions possible. Thousands of our satisfied clients have indicated that they are thrilled with their exterior and interior stormwater management. Read our client reviews.
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Locally Owned & Operated
Serving the greater St. Louis Metropolitan area! We live in the St. Louis Missouri community and we support the community. We have first-hand knowledge of the local area with coverage about construction practices in the area, wild weather, soil information and so much more.
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BBB Accredited Company
Our slogan is “Research our Reputation, we are the Solution.” Our reputation and client satisfaction are number one. We are accredited with the Better Business Bureau, maintaining an A+ Rating. Visit our Why Choose Drainage Team to learn more about us.
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Free Inspection & Proposals
We offer FREE inspections and free estimates to property owners in our service area. Our quotes are professionally developed straight from our price book, and are emailed within 1-3 business days with no obligation for you to sign up with our company. Still wondering if we’re a good fit for your project? Read about Frequently Asked Questions here.
