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STL Polyjack: Providing Foundation Repair Services In St. Louis Like No One Else!

The foundation of a home is a crucial element that supports the entire structure. Any damage to it should be addressed immediately as leaving it unattended can lead to more severe problems. There are various signs of foundation damage, such as cracks and gaps on the exterior and interior, moisture in the walls, and sloping floors. Checking for these problems in the foundation is not just a routine maintenance practice; it’s essential for ensuring the safety and longevity of our buildings.
We are a leading foundation repair expert in St. Louis. As a leader in the industry, we bring a comprehensive portfolio of services designed to address and remediate foundation issues of any scale or complexity. With a proven track record of excellence and a commitment to pioneering solutions, STL Polyjack stands ready to tackle the critical task of preserving the structural integrity of our built environment. Now, more than ever, it is imperative to recognize the importance of foundation maintenance and entrust your needs to the experts at STL Polyjack.

Our Foundation & Concrete Repair Services In St. Louis

We have been serving the St. Louis community for more than 20 years and have established a reputation for delivering top-notch service. Our specialization in foundation and concrete enables us to identify the required repairs for your foundation quickly and guarantee that they are carried out accurately.
Inspections & Engineering
Slab Jacking/Concrete Lifting
Soil Stabilization/Densification
Foundation Lifting/Stabilization with Poly
Deep Soil Densification
Sinkhole Remediation
Foundation Wall Reinforcement
Gutter Drain Systems
Gushing Leak Stop
Deep Soil Densification
Seawall/Bulkhead Stabilization
DOT Road Stabilization
Airport Runway Stabilization

Our Foundation Repair Solutions For Your Home

If you are experiencing foundation issues in your home, it can be a daunting task to figure out the underlying cause. However, once our team of experts has identified the root cause of the problem, we will take the necessary measures to fix your home’s foundation and ensure that it is safe and stable.

Foundation Stabilization

Foundation problems occur when the foundation loses its balance. Various factors, such as soil erosion and water infiltration, can contribute to this issue. If your foundation is unstable, we can stabilize it by injecting polyurethane foam. This foam expands and improves the foundation’s stability, making it stronger and more secure.

Basement Waterproofing

Waterproofing your basement is crucial to protect your foundation from groundwater intrusion and unwanted moisture. Preventing water from seeping into your home is very important to maintain its structural integrity. At STL Polyjack, we offer the best waterproofing services in St. Louis to provide your home with the essential protection it needs.

Crack Injection & Sealing

Cracks in a foundation indicate damage that needs to be addressed. Sealing these cracks can prevent the damage from getting worse and provide the foundation with the support it needs. Our solution involves using polyurethane foam to seal the cracks and gaps in your foundation, which not only prevents further damage but also strengthens the foundation overall.

Foundation Reinforcement

Foundation reinforcement is often necessary when the existing foundation of a building is not strong enough to support the structure or is showing signs of deterioration. Reinforcement techniques typically involve adding additional support structures or materials to the existing foundation to enhance its load-bearing capacity.

Gutter Drain Systems

Gutter drain systems are essential for managing rainwater runoff and preventing water from pooling around the foundation of a building. We offer assistance in analyzing your drain system and ensuring that it is properly installed so that the water is directed away from the foundation, preventing any water damage.

Common Foundation Problems You May Face In St. Louis

The foundation doesn’t start to crumble in one day. It shows several problems before giving in. These problems may include cracks, settlement, sinking, sagging floors, bowing walls, and much more. Keeping an eye on these indications may help you understand the problem and get help from experts.

Structural Cracks

Structural cracks can indicate a serious problem in a building’s foundation or structure. They are often wider than 1/4 inch and can be found in various areas such as foundation walls, floors, and columns. These cracks may grow wider or longer over time and can cause structural instability if left unaddressed.

Non-Structural Cracks

Non-structural cracks are typically less than 1/4 inch wide and may appear in patterns or isolated areas on interior walls, ceilings, and foundation wall surfaces. Although they are unsightly, non-structural cracks generally do not affect the structural integrity of the building.


Foundation settlement is a phenomenon where the soil beneath the foundation compresses or shifts, causing the foundation to sink unevenly. This can result in sloping floors, tilting chimneys, and visible cracks in the walls and floors. Settlement may be caused by poor soil compaction during construction, changes in soil moisture content, or the deterioration of organic materials in the soil.

Sinking or Sagging Floors

If you notice that your floors are uneven or sloping, it could indicate a problem with the foundation. Sinking or sagging floors may occur due to foundation settlement, inadequate support beams or joists, or rotting wood beneath the floorboards.

Bowing or Leaning Walls

Bowing or leaning walls are a common indicator of excessive lateral pressure being applied to the foundation walls. This pressure may be due to several factors like expansive soil, inadequate drainage, or hydrostatic pressure caused by water-saturated soil pushing against the walls.

Foundation Heaving

Foundation heaving occurs when the soil beneath the foundation expands, usually due to the freezing and thawing of moisture in the ground. This expansion can lift and distort the foundation, leading to cracks, uneven floors, and other structural problems.

Water Damage

Excessive moisture around the foundation can lead to various problems, such as soil erosion, concrete deterioration, and weakened foundation walls. Water damage can be caused by poor drainage, plumbing leaks, and insufficient waterproofing, which can worsen existing foundation issues.

Foundation Repair Gallery

Benefits Of Repairing From Foundation

Prevents From Further Damage

Foundation issues should be addressed promptly to prevent them from becoming more serious. Cracks, shifts, or settling in the foundation can worsen over time, and lead to structural instability and costly repairs. Early foundation repair can help mitigate these risks and save money in the long run.

Preserves the Value Of Your Property

A solid foundation is crucial for maintaining the value of your property. Foundation problems, if left unattended, can decrease the resale value of your home. Investing in foundation repair ensures that your property remains structurally sound, which is attractive to potential buyers if you decide to sell in the future.

Improves Structural Integrity

Foundation repair restores structural integrity, providing a stable base for your house. A compromised foundation compromises the overall stability of your home. This stability is essential for ensuring the safety of occupants and protecting the property against damage from natural disasters such as earthquakes, floods, or high winds.

Prevents From Water Damage

Foundation issues often lead to water infiltration into basements or crawl spaces, which can cause moisture-related problems like mold, mildew, and rot. Repairing the foundation can prevent water from seeping into your home, reducing the risk of water damage and associated health hazards.

Enhances Energy Efficiency

A damaged foundation can result in uneven settling of the structure, leading to gaps and cracks that allow air leakage. This can compromise the efficiency of your heating and cooling systems, as they must work harder to maintain a comfortable indoor temperature. Foundation repair helps seal these gaps, improving energy efficiency and reducing utility costs.

Contains Structure Uniformity

Minor foundation problems can cause uneven settling, resulting in sloping floors, sticking doors or windows, and other aesthetic issues. Repairing the foundation restores uniformity to the structure, eliminating these cosmetic imperfections and improving the overall appearance.

Choose STL Polyjack 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 foundation repair 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 for tailored concrete solutions according to your home needs!

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STL PolyJack

ST. LOUIS, MO 63130


SUITE 101-104,
FENTON, MO 63026

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