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What issue are you experiencing?
Cracks, water intrusion, crawl space moisture, settlement, etc.
Cracks, water intrusion, crawl space moisture, settlement, etc.
We Treat Your Home Like Our Own
Acculevel was founded in 1996, and is well known in the industry for repairing foundations, basements, and crawl spaces. We raise and repair concrete structures for thousands of customers per year.
A concrete slab sinks as the soil underneath it shifts. Often, the cause for this is erosion. Rain comes down and saturates the ground, mixing the water into the soil. Then, when the water drains away, it takes part of the soil with it. This erosion can happen gradually as a natural process, or suddenly if it’s caused by a broken pipe or ruptured drain. If the ground under a slab is eroding quickly or seems loose, you should evaluate your home’s guttering and plumbing systems. It’s possible the downspouts or plumbing are draining under the slab and washing out the soil.
In other circumstances, the slab moves because of the ground itself. It’s possible that it wasn’t properly compacted before the concrete was poured. The extreme weather cycles in the Midwest contribute another factor. The ground floods in the spring, then dries out during a summer drought, which prompts erosion Then there’s the winter freeze-and-thaw pattern. The ground expands when it freezes, and contracts as it thaws. This fluctuation also contributes to shifts in the soil, which accelerates the settling process.
Concrete rarely settles evenly; usually one end will sink more significantly than the other. When this happens, the stress of the uneven support will sometimes crack the slab. At that point, you have high and low points on the concrete, and a crack or joint between slabs that will catch a pedestrian’s toe. These are trip hazards and a liability issue.
Sometimes, an uneven slab can also cause damage to your home. It may redirect rainwater towards your house, instead of away from it. This leads to water damage to your foundation, and possibly to leaks in your basement or crawl space. Over time this extra moisture can cause serious damage. Water permeating into your home can cause rotting in the structural wood flooring system (sill plate, floor joists, etc) and allow mold to flourish and grow.
Slab lifting is done by injection. Small holes are drilled through the concrete slab, and material is injected below it. This material fills the void underneath the concrete, and gradually the pressure of this filler being forced under the slab creates lift. The type of fill material varies; many companies use a concrete or limestone slurry referred to as “mud” and this process is generally called mudjacking. As the slurry hardens, it creates lift below the slab.
At Acculevel, we use a polyurethane foam. In our experience, slabjacking provides a better and more reliable repair; once the foam is injected, the chemical reaction promptly begins to expand, and it’s this foam that does the lifting. Since it’s more immediate than mudjacking, it allows for better control.
In this video, one of our knowledgeable experts explains why we choose to perform slabjacking:
Slabjacking uses specialized equipment, but it’s usually installed in a standard-sized service truck that can park in the driveway or street without issue. Slabjacking repair work rarely requires an Acculevel crew driving across your lawn, or disturbing your landscape; the slabjacking equipment has a 250 foot injection hose to maximize our reach to the repair section.
In fact, there is very little mess generated at a slabjacking job site. Generally, crews only need to clean up some dust generated from drilling through the concrete, and maybe trace amounts of foam from the injection site.
This is preferable to the messy process of replacing a slab. Concrete demolition often involves the use of a jack hammer, which is noisy and creates debris that adds to landfills. Re-pouring concrete requires building forms, a concrete truck, and the use of this equipment in close proximity to the work site. This results in a significant amount of trash and upheaval on your property. The new slab can also be visually jarring, as it won’t match the other existing sections in color or texture.
Slabjacking works with the existing concrete slab, so the costs are limited. They depend more on the size of the slab being lifted, and the amount of void under the slab. (The larger the gap, the more material is required.) The costs to replace concrete can be double the price of slabjacking. For more details on costs, please review our article on costs comparisons.
Addressed waterproofing and sagging floor issues for Robert in the 48103 area. A noticeable leak was handled with an interior drainage system to ensure dryness and stability. In addition, the perimeter floor was stabilized to prevent future problems, costing around $3,000.
Near Ann Arbor, MI
Worked on addressing moisture issues in Jared’s basement located in the 48105 area. The basement faced challenges with water entry, particularly at one side having a noticeable problem. Our team installed a robust waterproofing system to protect against further intrusion, especially around the pump structure. The foundation, a mix of cinderblock and stone, now benefits from enhanced moisture control. This project was completed for approximately $4,200.
Near Ann Arbor, MI
Addressed water intrusion at the foundation's base for Uday in the 48104 area. With a focus on waterproofing, our team ensured a dry and secure basement to prevent mold development. Approximate cost for this project was $11,184.
Near Ann Arbor, MI
Victor's sidewalk had a noticeable void causing it to sink, raising concerns about potential safety hazards. Although there were initial concerns about using slabjacking for this issue, the job proceeded to restore the walkway's level. The process helped stabilize the sidewalk, ensuring a secure path. The approximate cost of this repair was about $2,000, addressing the situation effectively in the 48104 area.
Near Ann Arbor, MI
We recently completed a structural foundation repair for Duane in the 48103 area. This job involved addressing cracking issues and stabilizing support walls with new materials. Previously repaired sections needed attention as the original company went out of business. Our team ensured to check for any bowing in the walls, providing a lasting solution for approximately $5500.
Near Ann Arbor, MI
We completed a foundation repair and waterproofing project around a window well in the 48104 area. This job involved excavating the area to address drainage and potential water intrusion issues. Our team applied a waterproof membrane to ensure the foundation's durability and prevent future leaks. This project for Rick was accomplished with approximately $4250 dedicated to securing the property against moisture.
Near Ann Arbor, MI
We tackled a persistent leak in a townhouse basement that had troubled Diane for years, even after previous fixes. Our team traced the water intrusion to the basement stoop area, reinforced the caulking, and applied a waterproofing membrane for enhanced protection. This approach aims to secure the property before Diane moves to ensure a dry environment for future occupants. The approximate job price was around $3,000 in the 48103 area.
Near Ann Arbor, MI
Completed a slabjacking job to address the sinking front steps of Emanuel's home in the 48104 area. The stairs were showing significant signs of settling, and our team efficiently leveled them to restore safety and usability. The project involved lifting and stabilizing the concrete slabs to prevent further sinking. Approximate cost of the job was around $800.
Near Ann Arbor, MI
Completed a slabjacking job for Trivellore to address sinking sidewalks connecting to a porch in zip code 48108. The project involved raising the walkway to create a level surface, efficiently enhancing pedestrian safety and aesthetics. This necessary repair was carried out for approximately $2,600.
Near Ann Arbor, MI
