Category Archives: Concrete Floor Repair

Concrete Slab Problems

Concrete Slab Problems and Troubleshooting Tips

Concrete Slab Problems, concrete repair Kansas City, concrete repair St. LouisConcrete slab problems are a common occurrence in basement floors, garage floors, and other concrete surfaces. They go ignored for years until the surface gets worse. Without necessary repairs, cracks may spread and get larger allowing water to seep through the surface. If you know what to look for, most concrete slab problems can be easily identified. Some common slab problems include the following:

Shrinkage Cracking

  • Cause: Plastic shrinkage cracks are very thin cracks that do not affect the condition of the slab. They are usually a cosmetic issue caused by the drying and shrinking of the concrete surface. They develop in the first few hours after concrete the concrete is poured and before the job is complete. This usually occurs when the concrete is still plastic and shrinks due to rapid moisture loss.
  • Solution: There is no easy fix, but plastic shrinkage cracks can be prevented. Make sure the surface does not dry too quickly. Also, use lower water content mixes to prevent too much shrinking.


  • grinding concrete for repairs in Kansas City and St. LouisCause: Dusting is chalking at the surface of the concrete slab and can be rubbed off with your finger. It can be easily damaged by traffic use or with a stiff bristle broom. Dusting can be caused by finishing, floating, or troweling of condensation moisture from the humid air on the cold concrete surface.
  • Solution: Grind or seal the concrete floor surface to remove the top few millimeters of the surface. Grinding and sealing the surface will also remove rough spots and any surface indentations from the concrete slab.


  • Cause: When looking for scaling, look for loss of mortar. Scaling is caused by deicing salts, freezing and thawing cycles, hard troweling, improper curing, or low air content in the concrete mix.
  • Solution: It can be prevented by providing a good air void system and making sure salts do not get on the surface until the concrete has dried for at least 30 days. Scaling can also be fixed with concrete grinding. This method removes the top layer of the surface and levels uneven concrete.

Serious Cracking

  • small concrete crack repair in the Missouri areaCause: Serious cracking in a concrete slab is an indication of excess water and soil settlement beneath the concrete slab. These cracks are far more serious than surface shrinkage cracks and could lead to the foundation slipping or becoming uneven.
  • Solution: These can be fixed temporarily with polyurethane injected directly into the crack. For permanent repair, it is better to inject a polyurethane foam beneath the entire surface to not only fill in cracks but stabilize the soil and fill in voids.

Sinking or Settling

  • Cause: By the time your concrete slab has started sinking, settling, or becoming uneven, it is a certain sign that the soil beneath the concrete has settled or developed voids in it.
  • Solution: The best long-term solution is polyjacking, which lifts and levels the concrete and has other benefits.

Why Choose Polyjacking for Concrete Slab Repairs?

If your concrete slab has severe cracks or is sinking, settling, or shifting, can provide the best long-term solution for concrete repair, polyjacking. We’ve perfected the polyjacking method and actually developed the term. Polyjacking is a process of injecting polyurethane foam beneath a concrete surface to lift, level, and stabilize the concrete slab. In addition to leveling it, the process also seals cracks, fills voids, and reinforces the soil beneath the concrete. It takes only minutes to complete and prevents any further problems for years to come. We’ve won Angie’s List Super Service Award and other awards for our outstanding customer service. Contact us today for a free estimate!

Commercial Floor Repair

Commercial Floor Repair and Concrete Leveling

Commercial Floor Repair in St. Louis and Kansas CityCommercial floor repair can be done by the professionals at, a division of Pro Foundation Technology. Our team of professionals wants to assure our clients that the job will be done right the first time and that your floors will be ready for flooring installation. We have been serving our clients since 1978 and we’re a member of the Home Builders Association. We continue to offer our services in Colorado, Iowa, Texas, Kansas, Kentucky, Missouri, Mississippi, Oklahoma, and Tennessee.

We fix settling concrete beneath pavement for apartment buildings, shopping malls, parking lots, skyscrapers, sports arena, concert halls, libraries, and more. Repairing these damages will increase the value of your property and save you money in the long run. Our team of professionals will assess your concrete problems and provide a free price quote.

At, we use high-density polyurethane concrete leveling, also known as polyjacking or foam jacking. It is the best concrete leveling solution in today’s market. Polyurethane offers many benefits. It is cost-effective, environmentally friendly, and energy-efficient. This technique has been used for over 30 years on highways, providing excellent results. Not only does the foam repel water, but it also sub-seals floors. If you have uneven concrete, let inspect your concrete to determine if you need polyurethane concrete leveling in Kansas City and the surrounding area.

Concrete Repair with Polyurethane Injection

Commercial Floor Concrete Repair in Kansas City and St. LouisWhen using polyurethane injection to repair your concrete, we use the right poly equipment and materials. The process is quite simple but effective.

  1. We drill a small hole in the damaged concrete slab.
  2. We inject polyurethane foam into the void underneath the slab. The concrete is raised as the foam expands and the slab is permanently stabilized.
  3. We fill the holes and clean up the worksite.
  4. The polyurethane foam hardens very quickly allowing the concrete surface to be ready for use in about 15 minutes.

Polyurethane foam eliminates any erosion issues because it is water-resistant. It offers the following advantages:

  • By creating its own hydraulic lift, we can control the lifting process.
  • It contours to the size and shape of the area providing 100% coverage.
  • It is more economical than other concrete leveling methods.
  • Polyurethane is a seal barrier that guards against water and moisture.
  • It improves the structure of the concrete pavement.

For Concrete Leveling, Contact was one of the first companies to use this new polyjacking technology to replace the now outdated mudjacking technology in concrete repair. As a matter of fact, we created the term for the process of polyurethane injections. Contact us today for more information.

Extreme Weather and the Effect On Your Concrete

Extreme Weather 

Extreme weather and concrete repair in the St. Louis and Kansas City areaResidents in Kansas City and the surrounding area are used to snowy and icy winters. But what is different in the past few years is the extent and number of icy, snowy storms that this area has endured. These long, extended periods of ice and snow will affect your concrete and in the spring, you may see the damage that the harsh winter has caused.

When water freezes, it expands, and, adding the constant freeze-thaw cycles with a lot of moisture, the potential for concrete damage increases. One of the effects that cause extreme weather conditions is D-cracking. D-cracks are closely spaced cracks along the joints of the concrete.

If you find concrete damage in the spring after the extreme weather of the winter months, contact We have the products and experience to get your concrete repaired in Kansas City, MO.

Concrete Repair Solutions

concrete repair for Kansas City and St. LousiAfter the snow clears and you find that the extreme weather has caused concrete damage, can help get it back to its original level and looking like new again. The cost-effective method that we use for foundation repair is injecting polyurethane foam into the concrete to fill the voids and lift the concrete. Polyjacking is simple and less disruptive than replacing concrete. Polyurethane trucks and the right equipment are used for the installation process.

  1. A small hole is drilled into the affected concrete.
  2. Polyurethane foam is injected into the hole and it expands to 20 times its liquid volume to fill the voids beneath the concrete entirely.
  3. The fast curing time allows the concrete to be used about 15 minutes after the repair is done.
  4. The hole is filled and the site is cleaned up. has been in business since 1978 and is a member of the Home Builders Association. Contact us for a free quote on any of your concrete repair needs in Kansas City, MO or the surrounding areas today!

How Does Winter Affect Concrete?

Winter in Kansas City

winter concrete repair in the St. Louis and Kansas City areaCold weather can cause many issues for the concrete surrounding your home or business in Kansas City and St. Louis. When water freezes it expands and produces pressure in the pores of the concrete. If this pressure exceeds the tensile strength of the concrete, the concrete will rupture. The effects of the freeze-thaw cycles will cause scaling, cracking, and crumbling of the concrete.

The deicing chemicals used on concrete throughout the winter causes concrete scaling. This is the loss of surface mortar on the concrete. The signs of concrete scaling are easy to see. The concrete becomes rough and flaky and may also pit. In some cases, the concrete becomes loose and breaks off in chunks.

Concrete cracking is the result of freeze-thaw deterioration of the aggregate within the concrete. Water gets into the cracks and accumulates. Then with the freeze-thaw cycles, the cracks will form at the bottom of the concrete and progress upward.

Crumbling concrete is also the result of the freeze-thaw cycles of winter and the deicing products used. It is unsightly and can become a tripping hazard.

Concrete Repair

winter concrete repair and leveling Kansas City, concrete leveling St. Louis, concrete repair in Missouri and KansasIf the winter weather takes a toll on your concrete, the experts at has the right poly equipment to get your concrete looking like new again. We use a high-density polyurethane foam that is injected into the concrete.

Polyjacking is a relatively simple method

  1. A small 5/8″ hole is drilled into the affected concrete.
  2. Polyurethane foam is injected into the hole. As the foam expands to fill the entire void beneath the concrete, it raises the concrete.
  3. The hole is filled and the site is cleaned up.
  4. Due to the fast curing time of polyurethane foam, the concrete can be used about 15 minutes after application.
  5. Polyjacking also fills in cracks and gaps and stabilizes the soil beneath the concrete slab. can inspect your concrete and offer you solutions for preventing concrete damage before winter sets in or repair your concrete that has been damaged by the harsh winter months. Don’t hesitate to contact us for a free estimate and inspection!

What Causes Voids in Kansas City and St. Louis?

Void & Concrete Repair

cause of voids in St. Louis and Kansas CityMost people think concrete repair is needed for mature, existing concrete structures caused by outside elements. However, concrete repair can also be needed for newer construction. If concrete is so widely used in the construction industry, why does it sometimes form voids under the surface and deteriorate so quickly? Unfortunately, this may be due to environmental causes or human error. Some environmental causes are problems created by:

  • Freezing and thawing conditions
  • Drought-like weather conditions
  • Chemical agents such as salts and moisture
  • Decaying organic materials
  • Shrink and swell cycles (excessive water)
  • Soil erosion
  • Hydrostatic pressure

Voids can also be caused by human error due to poorly compacted fill material, too much water added to concrete, inadequate concrete cover or structural overload. These conditions can weaken the concrete surface causing settlement, sinking, and shifting over time. The concrete may start to crumble, crack, flake, or chip.

Concrete Repair & Lifting

If you have cracking or uneven concrete, let our professionals inspect your concrete surface. Our company offers a variety of concrete repair solutions that will permanently lift and stabilize the slab by using polyurethane foam. We can repair settling concrete for any residential, industrial, and commercial project.

Residential Concrete Repair

filling voids with polyurethane foam in Kansas City and St. LouisFor residential projects, we can repair the following:

  • Garages
  • Driveways
  • Basement floors
  • Patios
  • Sidewalks

Commercial Concrete Repair

We offer commercial concrete repair for the following:

  • Public parking lots
  • Theatres
  • Sports arena
  • Apartment buildings
  • Shopping malls
  • Skyscrapers

commercial polyjackingIndustrial Concrete Repair

For industrial projects, we offer concrete repair for the following applications:

  • Heavy machinery stabilization
  • Bridge approach void filling
  • Highway leveling
  • Infrastructure
  • Sewer line
  • Road leveling

What Type of Concrete Repair Method is Used?

With polyjacking, we use high-density polyurethane foam to lift and stabilize the slab back to its original level without replacing the concrete. This process saves you time and money without excavating the work area. Polyurethane trucks and the right equipment are used for the installation process, which is relatively simple.

Polyurethane provides numerous advantages, that’s why it is highly used in the concrete repair industry. It is highly durable, accurate, efficient, and cost-effective. It prevents resettlement from occurring because it is lightweight and moisture resistant.

If you have voids under your concrete surface, give a call today. We are proud members of the community because we focus on integrity and putting our customer’s needs first.

What Can Be Polyjacked?

Polyjacking Concrete Repair in St. Louis and Kansas CityWhat is Polyjacking and Why is it Beneficial?

At, we use poly equipment and trucks to lift the concrete slab. Polyjacking is a process that requires raising the concrete slab by drilling holes through the top surface of the affected slab, then injecting high-density polyurethane foam into the holes to fill in voids and cracks.

There are many reasons why polyurethane is used as an alternative concrete repair method, but here are the most common reasons:

  • Smaller holes: With polyurethane foam, we can drill smaller holes (5/8″) into the concrete than other methods. Mudjacking requires larger holes (2-3″).
  • Lightweight material: Since polyurethane foam is lightweight compared to the mudjacking slurry, it doesn’t create pressure to underlying soils. The slurry used for mudjacking is heavy, causing resettlement over time.
  • Fewer holes: Polyurethane foam requires fewer holes which makes your concrete surface look cleaner afterward compared to traditional mudjacking.
  • Permanent repair: Polyjacking is a long-lasting repair method, not a temporary fix. It won’t lose density or erode like mudjacking. It cures within minutes, allowing you to use the concrete surface shortly after installation.

What Causes Concrete Settlement?

Polyjacking can be applied to sunken or settling concrete that needs to be realigned to its original position. The most common causes of settling concrete are due to the following soil-related issues:

  • Poor drainage
  • Soil erosion
  • Soil compaction
  • Plumbing leaks
  • Soil shrinkage

What Kind of Concrete Surfaces may Require Polyjacking?

Polyjacking can be applied to sidewalks, driveways, walkways, parking lots, patios, steps, garage floors, and basement floors.

Not only do we offer residential repair service, but we also provide commercial and industrial service to repair office floors, warehouses, sports arenas, libraries, and much more.

Why Choose Polyjacking Over Other Concrete Repair Methods?

Polyjacking offers the following benefits:

  • Durability
  • Maintains structural integrity
  • Moisture seal barrier
  • Fast curing time
  • No demolition or excavation
  • Drills smaller holes
  • Less noticeable
  • Contours to the shape and size of the voids
  • Minimal disruption
  • Maintains compressive strength
  • Eco-friendly
  • Extreme lifting capability
  • Prevents heaving
  • Seals joints and cracks
  • Erosion free

Why Should You Choose for Polyjacking Concrete Repair?

We offer free online quotes for every project in our service area. Our service area includes Arkansas, Colorado, Illinois, Iowa, Kansas, Kentucky, Minnesota, Mississippi, Missouri, Nebraska, Oklahoma, Tennessee, and Texas. We provide residential service for Kansas and Missouri only.

Is Polyjacking Seasonal?

Seasonal Polyjacking Issues in Kansas City, Missouri

seasonal polyjacking and concrete leveling in Kansas City and St. LouisPolyjacking is an important concrete repair service for many residents of Kansas City and St. Louis, MO. This service is used to lift and stabilize sinking concrete slabs. Sinking slabs are usually due to variations in temperatures and moisture content in the soil around the slab. Polyjacking is the most effective way to fix this issue, as it supports the foundation from underneath while compacting and stabilizing the soil. This results in a more stable foundation or slab and also helps to seal cracks in the concrete., the Polyjacking branch of Pro Foundation Technology (PFT), can help restore your settling concrete slab immediately.

Settling concrete slabs are usually the result of voids and spaces forming beneath the slab. This can happen when the soil shrinks due to extremely dry, hot weather, or when frost in the ground freezes and thaws. Hydrostatic pressure is caused by excessive moisture absorbed by the soil. It pushes against the slab, causing it to shift and crack. Varying moisture content in the soil also leads to the formation of gaps and spaces in the soil under the foundation. These gaps cannot provide adequate support for the concrete, causing the slab to sink and settle into these voids as a result. By using polyjacking to fill these voids, we can raise the slab to the proper position.

Cold temperatures can cause the foundation to heave and settle, requiring support from slab jacking underneath. Dry conditions can lead to soil shrinkage, forming voids that must be filled by polyjacking services. Whatever the seasonal issue is in your home, we can help give you the necessary repairs to ensure that your slab is well stabilized and protected from seasonal damage.

Polyjacking Services for Seasonal Repair in Kansas City

seasonal polyjacking repair for the St. Louis and Kansas City areaThe polyjacking process consists of several essential steps. Poly equipment and trucks are used for the installation process. These steps in the process include:

  1. First, holes are drilled through the slab in a strategic pattern to maximize lift and minimize loss of structural integrity.
  2. Next, the high-density polyurethane foam is injected through the slabs to fill voids under the concrete.
  3. This polyurethane material expands to fill voids and compact the soil around the voids, creating a more stable foundation for the concrete slab.
  4. Once the slab is raised, any remaining cracks can be filled, as well as the holes that were drilled previously.
  5. The equipment is removed from the job site and the slab is back to normal and ready for regular use.

This polyjacking procedure can prevent seasonal foundation problems in your home or commercial structure. Polyjacking is a versatile service that can be used in nearly any type of weather to prevent all sorts of seasonal issues. Contact us today for more information.

Industrial Uses for Polyjacking

Industrial Polyjacking in St. Louis, Kansas City, & More

Industrial floor repair and concrete leveling in Kansas City and St. LouisPolyjacking is a permanent solution for settling industrial concrete floors. This method of concrete repair in the industrial setting injects polyurethane foam into a 5/8″ hole that is drilled through the damaged concrete. This polyurethane foam fills the voids beneath the concrete and lifts it back to its original level. Because of the quick drying time, the concrete is ready for use in about 15 minutes.

Concrete can move and shift due to the changing soil moisture beneath it. When the soil gets too wet, it tends to heave and when it is too dry, it shrinks. This shifting and shrinking of the soil cause voids beneath the concrete. This causes the concrete to settle into these voids. Polyurethane foam injected into these voids lifts and stabilizes the concrete back to its original level.

When an industry relies on production for their profit, you don’t want to have any downtime. That is why when there is a need for concrete repair, the best choice is polyjacking. There won’t be a long stretch of downtime and your concrete will be ready for use right after repairs are made. The curing time of the polyurethane foam is around 15 minutes.

Polyjacking is less expensive and much faster than concrete replacement. It has a lifting capability of 900 tons so the process can be completed without having to move machinery or shelving before the repairs begin.

Why Polyjacking for Industrial Concrete Repair?

Polyurethane foam has a compressive strength of 500 psi so it can hold up to the weight of industrial machinery, forklifts, warehouse shelving, and inventory. The other advantages of polyjacking and polyurethane foam are:

  • Cleaner, mess-free application
  • Less disruptive, fast process
  • Ready for immediate traffic
  • Lightweight material
  • Moisture-resistant

The process of polyjacking allows for precise control of the lifting process to within 1/10th of an inch. There is no shrinkage of the material over time. Once the machinery, work tables, and shelving are leveled, they will stay that way for years to come. Some of the structures that benefit from polyjacking in the St. Louis and Kansas City area are apartment buildings, shopping mallssports arenas, concert halls, skyscrapers, theatres, airports, factories, and amphitheaters.

If your industrial facility requires concrete repair, let the experts at give you a free inspection.

Concrete Floor Repair for Theatres


theatres and concrete floor repair in St. Louis and Kansas CityThe theatres in Kansas City and St. Louis are some of the largest and beautiful in the entire country. Keeping them well maintained is important. Part of the maintenance and upkeep of these theatres is concrete repair. Theatres are heavily used by the public and need to be in good repair to keep them safe and to protect equipment and furniture from being damaged.

Concrete floors can sink and crack due to the soil beneath them. When the soil constantly shifts and moves due to the changing moisture content, this creates voids beneath the concrete making the concrete sink into the voids. Repairing concrete before it fails is important. If you see sinking concrete theatre floors in Kansas City, we offer polyjacking to level concrete back to its original level.

Polyjacking Used for Theatre Concrete Floors

Polyjacking is relatively quick and efficient with the right poly equipment and products. The installation process includes drilling a 5/8″ hole through the affected concrete then injecting the polyurethane foam into the hole. The foam will expand to fill the voids beneath the concrete. As the voids are filled, the concrete is lifted back to its original level. The foam hardens within 15 minutes and then the concrete is ready for use. After the foam injection is completed, the holes are filled and the site is cleaned up. All polyurethane trucks and equipment are removed.

There are many advantages to using the polyjacking process for theatre projects. Some of these include:

  • Economical – Much less costly than removing and replacing concrete
  • Moisture resistant – Polyurethane foam guards against moisture
  • Less disruption – Polyurethane foam dries quickly so the theater can be used immediately
  • Accurate – The foam creates a precise hydraulic lift
  • Durability – Polyurethane foam is strong yet dense and can support a large amount of weight
  • Conformability – Polyurethane foam contours to the size and shape of the voids to provide total coverage

To accurately locate the voids beneath the concrete, we use ground-penetrating radar (GPR). Using a GPR is a fraction of the cost of the X-ray method and there is no exposure to radiation. The GPR units are portable and provide an instant location. This reduces the time spent on-site and gets the theatre concrete repair done more quickly.

Don’t let damaged concrete in your St. Louis or Kansas City theatre cause you to close the venue for an extended period. We can be in and out in hours, not days. has the experience to ensure that your concrete repair is done right the first time and will last for years to come. Don’t hesitate to contact us if you require theatre concrete repair in St. Louis and Kansas City.

Library Concrete Floor Repair

Libraries in Kansas City and St. Louis

Kansas City libraries, St. Louis library concrete floor repairKansas City and St. Louis have some of the largest libraries in the country. Keeping them in good repair is important, this includes concrete floor repair when needed. Repairing the concrete at the first signs that it is cracking or sinking will help avoid costlier repairs in the future. Since libraries are heavily used by the public, you want to make sure that a sinking concrete floor is not causing tripping hazards or causing damage to equipment or furniture.

The soil beneath the concrete can constantly shift and move due to the variation of moisture content. This constant shifting also causes concrete to settle into the voids. uses high-density polyurethane foam to level and stabilize uneven concrete by filling in these voids.

Polyjacking Used for Libraries

Library concrete floor repair and leveling in St. Louis and Kansas provides a cost-effective, long-term solution for commercial concrete repair in Kansas City and St. Louis. We use polyjacking to lift and stabilize concrete. This method is much more cost-effective than concrete replacement. It decreases downtime as this process allows you to use the concrete immediately after the repair is complete. has the experience and uses the best poly equipment for concrete leveling in Kansas City and St. Louis. This simple process of polyjacking includes:

  1. Drilling a hole through the affected concrete
  2. Injecting the polyurethane foam through the hole
  3. The voids beneath the concrete are entirely filled with the polyurethane foam
  4. Concrete is lifted back to its original level
  5. The foam hardens and concrete is ready for use
  6. The holes are filled and the site cleaned up

There are many advantages to using the polyjacking process for commercial projects. Polyurethane guards against moisture and dries quickly so the library can be used immediately. The foam creates a precise hydraulic lift that is strong enough to support a large amount of weight.

We use a ground penetrating radar (GPR) to accurately locate these voids and to know where to inject the polyurethane foam. Because the GPR units are portable and provide an instant location, this system is a fraction of the cost of the X-ray method.

For any of your library concrete repair needs in Kansas City and St. Louis, has the experience to get the repairs done effectively. We have completed concrete repair work for

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