Foundation waterproofing in St. Louis, MO
Stop leaks, prevent damage, and safeguard your home with professional foundation waterproofing.
Our waterproof basement crack injections include a transferable lifetime warranty.
Why foundation waterproofing matters in St. Louis
St. Louis homeowners know the struggle: heavy rainfall, clay-rich soil, and shifting ground create the perfect recipe for water intrusion. With over 40 inches of rain each year, our dense clay soil expands when wet and shrinks during dry spells, putting constant pressure on your foundation. The result? Cracks, leaks, basement flooding, and even mold growth.
At Jet Foundation Repair, we provide foundation waterproofing in St. Louis, MO that addresses the problem at its source—whether it’s poor drainage, hydrostatic pressure, or existing foundation cracks. Our solutions are tailored to your home’s unique needs and built for long-term protection.
Our waterproofing services include:
Interior drainage systems to redirect water away from your basement
Sump pump installations to keep water out year-round
Vapor barriers to reduce moisture and improve indoor air quality
With a free professional assessment, we’ll help you choose the best waterproofing system to protect your foundation and transform your basement into a dry, healthy, and valuable part of your home.
Vapor barrier installation
Jet Foundation Repair installs a basement vapor barrier in Festus, MO
Vapor barriers, typically made from durable polyethylene sheets, are applied to the interior walls of the basement. The installation process begins with cleaning and repairing the walls, followed by securely attaching the barrier using adhesives, fasteners, or seam tape to ensure a tight seal.
The barrier directs any water seepage into an interior drainage system, often integrated with sump pumps and dehumidifiers for comprehensive moisture control. Properly installed vapor barriers not only block water vapor, but also inhibit mold growth, reduce humidity, eliminate musty odors, and enhance the basement's overall durability and energy efficiency.
Interior drain tile installation
Jet Foundation Repair digs a perimeter for an interior drain install
Installing an interior drainage system is a highly effective method for waterproofing basements by addressing water intrusion at its source. The process typically involves digging a shallow trench along the interior perimeter of the basement floor, where a perforated drainage pipe is installed and surrounded by gravel. This pipe collects water seeping through walls or the floor-wall joint and channels it to a sump pit, where a sump pump expels the water away from the foundation.
Drain retrofitting process
Interior drainage systems are typically less disruptive and more cost-effective than exterior solutions, as they avoid excavation and are resistant to clogging.
In order to install an interior drain to the manufacturer specs, we follow a consistent process:
Break and remove concrete where the drain will be installed.
Dig a trench along the foundation wall down to the footing.
Install perforated drain pipe, sloped toward a sump pit or outlet.
Test the system to ensure proper drainage and flow.
Backfill with clean gravel to promote drainage
Re-pour concrete to restore the basement floor.
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Basement Crack Injection
Basement crack injection is one of the most effective and permanent solutions we offer for stopping water intrusion through foundation walls. Using high-quality polyurethane, we seal cracks from the inside to prevent leaks, reinforce the structural integrity of the wall, and keep your basement dry. This process is ideal for poured concrete foundations and is a fast, minimally invasive repair method that doesn't require exterior excavation. Whether you’re dealing with a hairline crack or a more visible opening, crack injection offers a reliable fix that can protect your home for decades.
Exterior drainage
Exterior drainage systems, such as French drains, play a crucial role in waterproofing basements by preventing water from accumulating around the foundation. These systems involve installing perforated pipes at the footing level of the foundation, surrounded by gravel and often wrapped in a filtration fabric. The pipes collect excess groundwater and channel it away from the home using gravity.
Our basement waterproofing service starts with a review of the home’s exterior drainage and frequently includes our recommendation or a proposal on fixing or improving it.
