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Why does concrete crack?

All poured concrete foundations are inherently susceptible to cracking. Concrete consists of cement, sand, gravel and water, and as the water in the slurry evaporates, the remaining ingredients cure in to a hard slab. Over time, the concrete will shrink and/or settle slightly, resulting in cracked concrete.

In climates where there are extreme variances in moisture and/or temperature, the process of shrinking and settling concrete can be accelerated. When cracks develop in poured concrete walls, ground water could make its way through these cracks, causing damage to finished areas and personal property.

Leaking foundation cracks are one of the biggest problems facing homeowners. Cracks can occur in any home, at any time, regardless of its age. However, most wall cracks pose no structural threat to the integrity of the foundation, and can be permanently and affordably repaired by CrackWizard.

How to tell if you have a problem?

If you have a crack in your wall, whether the foundation crack is inside or outside the home, water will find its way to the crack and into your home. Waterproofing your basement is important for many reasons, and time is of the essence when you have cracking in your foundation walls.

Whether you’re in Illinois or in Missouri, we help with foundation cracks for homes and businesses all throughout the Greater St. Louis area.

If you are a Realtor in the St. Louis area and you need a quote on a foundation crack before selling a home, please contact us for a basement crack free quote.

Do you offer free quotes?

Yes, we do! If you are experiencing cracks in your foundation walls, we offer free quotes on foundation crack repairs. You can also get a free quote by giving us a call at 314-332-1300.

If you’re looking to speak with someone at Crack Wizard but are unable to talk over the phone, please send us a message through our Contact Us page.

Is CrackWizard’s Repair Process Disruptive To My Home?

CrackWizard works from inside the home, eliminating the need for messy, expensive outside work. Our exclusively formulated epoxy and urethane sealants and resins provide a permanent, cost-effective solution for foundation cracks. When CrackWizard repairs a crack, it’s fixed forever.

What is your warranty and what does it mean?

Our warranty is simple: As long as your house is standing, any crack we repair is guaranteed not to leak. If it does, we will repair it at no charge. Plus, our warranty is transferable at no charge, regardless of changes in ownership. Whether you are finishing your basement or selling your home, call CrackWizard for your foundation repair needs.

Before and after our basement leak repairs in St. Louis, MO

How much does it cost to repair a crack?

There are many factors that play into the cost to repair a crack, and CrackWizard can typically repair any crack provided the crack does not exceed 10 linear feet in length. Also, when you have multiple cracks in your basement walls, you may worry that the cost will be super expensive – with the CrackWizard, that’s not the case!

When you have foundation problems in St. Louis, call the CrackWizard today! Additional cracks become incrementally less in cost, depending on the number of cracks.

Foundation Wall Crack Injection
and Floor Crack Repair

Cracks in a home’s foundation are very common, especially in houses with a poured concrete foundation. These are usually small hairline cracks. These cracks are not always a cause for concern but over time they can begin to widen and that is when the problems can start allowing water to enter the home.

There are many solutions for repairing foundation cracks. Some that can be very costly and can involve excavation around the property. But there is another method that can permanently repair these cracks that does not involve digging. This method is known as low pressure crack injection. This technique is considered reliable, cost effective and in most cases permanent.

Crack injection process involves injecting, at low pressure, either an epoxy or polyurethane material into the basement crack. Whether epoxy or polyurethane is used will depend on the nature of the crack, the wall thickness and other factors. Once the injected material is cured the crack is sealed.

We also seal cracks in basement floors. By backfilling the crack with sand and using a self-leveling epoxy we can create a smooth surface.


Q: Can I remove the plastic tubes sticking out of the repaired crack, after work is complete?
A: Yes. The plastic tubes (“injection Ports”) can be removed from the wall 24 hours after the crack is injected. The ports can be removed by cutting them off at the base with any type of saw or blade. Removing injection ports will not jeopardize the integrity of the repair or affect the warranty in any negative way.

Q: Can I paint over the repaired crack?
A: Yes. Our work can be painted immediately after the repair is complete.

Street Creep and Driveway Repair

Street Creep occurs as a result of the unpredictable movement, shifting and expansion of concrete streets. There is no valid method to predict when this problem will happen. The extreme pressure caused from Street Creep can crack and destroy foundations and driveways.

The only way to monitor this movement and prevent damage to your home is to Install an expansion joint in the driveway to allow for expansion and contraction of the moving street without damaging the structure of your home.

Speaking of cracked driveways… We seal those too! By backfilling the crack with sand and using a self-leveling epoxy we can create a smooth surface.

Sump Pumps and Basement Drainage Systems

During heavy rains and extreme weather, water can accumulate around your foundation. If your foundation is not completely waterproofed, your basement could be at risk of flooding. To help reduce the risk of basement flooding, you may choose to install sump pumps in your basement and/or crawlspace.

When installing a sump pump, it is placed in a specialized hole known as a sump pit. We dig the Sump Pit lower than the rest of the basement, so that water will naturally flow to this area. The Sump Pump is placed at the base of the pit. Once the sump pit fills with water, the float switch on the Sump Pump is flipped on and then will begin pumping water out through the discharge line.

You may also need a basement drainage system. This drainage system works hand in hand with your Sump Pump. Basement drains are installed along the perimeter of your basement. The system is connected to all leaking walls and directs the water to your sump pump, which then directs the water outside and away from your foundation. The benefit to an interior drain system is that there is no need to damage your yard like there would be with an exterior drain system. Interior drain systems are also much less expensive and quicker to install.

Check Out the Video Here

Carbon Fiber and Stabilizing Wall Straightening Systems

Are your foundation walls bowing, shifting, buckling or cracking? Carbon fiber could be your solution. Carbon fiber is a lightweight, durable, stronger than steel fabric. It will never rust or deteriorate and is virtually unbreakable. It can be used to stop further inward movement of block foundations and poured concrete walls. Carbon fiber has been used for years repairing roadways, bridges, and even commercial airplanes, so carbon fiber is going to be your strongest asset and longest lasting solution when it comes to reinforcing, maintaining or restoring the structural integrity of a concrete foundation.  Unlike typical foundation wall anchors, Carbon Fiber Straps are maintenance-free and can be painted, making them virtually unnoticeable.

The only drawback to Carbon Fiber is that is can only be used on poured concrete walls that have shifted inward 2inches or less or on masonry walls with all its blocks, stones and bricks still in line.

In a situation that a wall is more severely damaged you would then want to use a stabilizing, wall straightening system. This is a pre-engineered, permanent solution that restores the structural integrity of the foundation wall by repairing bowed, sheared and tipped walls with the use of steal beams and tied-in to the structure of the house and footing.

Push Pier System

Push Piers are used to permanently stabilize your homes foundation by transferring the weight of the house to its surrounding, stable soils and/or bedrock. This is done by exposing and supporting the foundations footing. The soil surrounding the footing is excavated, then a proprietary heavy-gauge steel bracket is placed under the footing. Steel pier sections are then pile driven through the bracket until they reach stable soil and/or bedrock. Once all the piers are installed, a lift can be attempted to return the home to its original position. When the installation is completed, the excavated soil is put back, covering the footing and brackets.


Most concrete raising jobs will take a few hours —start to finish—and your concrete will be ready for use immediately upon completion! Polyurethane concrete raising uses a foam material that is injected under the slab. When the components of this material are mixed, a reaction causes the material to expand. This expanded foam fills any voids beneath the slab and raises the concrete. This material will never lose density, is permanent and weighs only about 2 lbs. Per cubic foot.

Benefits of Polyurethane Concrete Raising

Cost Effective: concrete raising is typically about half the cost of replacing the same concrete. Ultimately, the cost of raising or stabilizing concrete is a direct reflection of how much leveling material the project will require.

Time: Ready to use immediately! You can drive on, walk on, and play on it the same day!

Clean Work Environment: No concrete or grout splatter and no wash down needed. No heavy equipment will drive through your lawn and disrupt your landscape.

Smaller Holes: Polyurethane concrete raising drills a nearly invisible 5/8-inch hole and the process calls for considerably fewer holes than traditional mudjacking; Minimal patchwork needed.

Lightweight: This material will never lose its density, is permanent and weighs only 2lbs. per cubic foot. Compared to traditional Mudjacking material, which weighs on average of 100lbs per cubic foot.

Green: HMI foam is the top-of-the-line ecofriendly material, every time concrete is raised, we are saving concrete slabs from landfills by raising versus replacing concrete!