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Protect Your Basement With The Best Waterproofing in St. Louis!

Basement water and moisture issues are serious matters that must not be taken lightly. These problems could signify that there are cracks and gaps in the structure of your home, and water has found its way in. If left unattended, this may lead to even more damage and potentially cause major foundation issues. Therefore, it is crucial to address the problem promptly to prevent any further harm to your property.

If you’re searching for reliable waterproofing services in St. Louis, look no further than STL Polyjack. With our extensive experience and unmatched expertise, we can accurately identify the root cause of your waterproofing issue, and provide a customized solution that perfectly fits your home. Whether your basement has minor or severe damage, our team of experts is fully equipped to tackle any challenge and deliver top-notch results. Reach out to us and we can come up with a solution.

Common Causes Of Basement Water Problems

Basement waterproofing issues can be a homeowner’s worst nightmare, leading to several problems such as mold growth, structural damage, and decreased property value. It is crucial to understand the common causes of these problems to address and prevent them effectively. Here are some of the most prevalent causes:

Age Of Your Structure

Water seepage in your basement may be caused by the aging of your structure. Despite the strength of the materials used, they may weaken over time. Additionally, the soil composition around your home may have changed since the initial construction. This can create weak spots that give way to water due to hydrostatic pressure.

Poor Drainage System

Inadequate or malfunctioning drainage systems around the foundation of a house can lead to water seepage into the basement. This includes issues such as clogged or damaged gutters, improper grading that directs water toward the foundation, or poorly installed/maintained french drains.

Sump Pump Damage

Sump pumps are an essential part of any home’s drainage system. They are designed to remove excess water from the basement and prevent it from causing damage. However, if your sump pump fails to function properly, it can lead to a basement leak.

Improper Grading

The reason for your basement leaks could be the land grading. Ideally, the land should be graded in a way that allows water to flow away from your home. However, over time the grading may become flat, causing water to stagnate near your foundation. This could also be the cause of your basement leaks.

Basement Problem Signs

It is important to keep in mind that concrete damage and basement leakage do not occur suddenly. There are usually warning signs that should not be ignored. Before you assume the worst, it is recommended that you hire the best waterproofing contractors in St. Louis. They can help you identify the signs and provide the best solution for your problem. Here are some of the most common signs:

Water Stains and Dampness

One of the most noticeable indications of basement problems is the occurrence of water stains on walls or floors. Moisture in the basement can suggest inadequate drainage around the foundation or even cracks in the walls or floors, which allow water to infiltrate. If left unaddressed, this dampness can result in the growth of mold and mildew.

Musty Odors

Have you ever noticed a strange odor in your basement? Even if you cannot see any visible signs of mold, a persistent musty smell indicates that moisture is present and could lead to mold growth. To prevent further damage and improve the quality of air inside your home, it is essential to address the source of the moisture.

Cracks in Basement Walls or Floors

Cracks in the basement walls or floors are obvious signs of structural issues. While hairline cracks may be superficial, larger cracks or those that are widening over time could be a sign of foundation settlement or hydrostatic pressure from the surrounding soil.


Efflorescence appears as white, powdery deposits on basement walls and is caused by water seeping through porous masonry materials and leaving behind mineral deposits. While efflorescence itself is not harmful, it indicates water intrusion and can signal potential moisture-related issues in the basement.

Sagging Floors or Ceilings

If you notice that the floors above the basement are sagging or uneven, it could be a sign of structural damage, such as rotting support beams or joists. Similarly, if the basement ceiling shows signs of sagging or cracking, it may indicate water damage or poor structural integrity.

Foundation Shield: The Best Waterproofing In St. Louis

Our mission is to provide every resident and business in St. Louis with a clean and dry basement. Our foundation shield is a unique waterproofing method that protects your basement from the outside. It is a cost-effective solution that acts as a second wall, preventing water from entering your basement. With our foundation shield, you can save money while keeping your basement clean and dry.

Our foundation shield is a special polyurethane foam that we inject into the soil directly outside the foundation. The foam fills any cracks or crevices in the foundation wall, sealing off the foundation and preventing water from seeping into the basement. As the polyurethane expands, it flows into the void spaces of the soil, fully encapsulating it and forming a secondary barrier on the exterior of the foundation. This effectively creates a second wall that provides the protection your home needs.

Benefits Of Waterproofing Your Basement

Water finds its way through your home. Likewise, waterproofing experts in St. Louis, know the right solution for it. Hire STL Polyjack today, and we’ll give you a clean and dry basement in return. Here are some benefits of waterproofing your basement

An Extra Room For You!

A clean and neat basement can be an extra room for you. By opting for basement waterproofing, you can ensure that the area remains dry and free of moisture, making it perfect for converting into a home gym, office, or even a cozy guest room.

Prevent Structural Damage

If you have broken plumbing or leaky basement windows, it might seem like a minor issue at the moment, but it can cause serious structural damage in the long run. To prevent such damage, it’s important to waterproof and repair them as soon as possible.

Prevention of Water Damage

Water infiltration can cause extensive damage to buildings over time, including rot, mold growth, corrosion, and structural deterioration. Waterproofing creates a barrier that prevents water from seeping into vulnerable areas, thereby safeguarding the integrity of the structure.

Extended Lifespan of Structures

By effectively sealing off surfaces from moisture, waterproofing helps to prolong the lifespan of buildings and infrastructure. It prevents water-related deterioration, which can weaken materials and lead to costly repairs or replacements.

Protection Against Mold and Mildew

Moisture accumulation provides an ideal environment for mold and mildew to thrive. Waterproofing measures inhibit the growth of these harmful microorganisms, promoting healthier indoor air quality and reducing the risk of respiratory problems for occupants.

Energy Efficiency

Waterproofing can enhance the energy efficiency of buildings by reducing the infiltration of outside air and moisture. This helps to maintain more consistent indoor temperatures, leading to lower heating and cooling costs over time.

Choose Us For All Your Concrete Needs In St. Louis!

We are a contractor with over 20 years of experience serving the St. Louis area. As a local company, we understand the unique needs of the region. Our team of field experts specializes in basement waterproofing in St. Louis and is among the top professionals in St. Louis. We have earned an A+ rating from the Better Business Bureau and an A+ rating in customer satisfaction, making us a reliable and trusted choice for your concrete needs. Contact us today to get the best waterproofing for your home!

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STL PolyJack

ST. LOUIS, MO 63130


SUITE 101-104,
FENTON, MO 63026

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