Discover how A-1 Concrete Leveling's proprietary ControlLevel system is designed to deliver more accurate, longer-lasting repairs for sunken concrete – from driveways and sidewalks to patios, garage floors, and beyond.
Quick Summary
ControlLevel is A-1 Concrete Leveling's proprietary system designed to restore sunken concrete to a safe, level surface with precision. It combines expert-trained technicians, specialized equipment, and a limestone-based stone slurry grout that allows for real-time adjustments during the lift. Built on more than 40 years of refinement, ControlLevel is the precision standard that sets A-1 apart. It is available exclusively through A-1's nationwide network – no other company offers it.
In This Article
What Is ControlLevel?
ControlLevel is designed to restore sunken concrete to a safe, level surface with precision built to last.
It is A-1 Concrete Leveling's proprietary system for lifting settled slabs – driveways, sidewalks, patios, garage floors, pool decks, interior floors, and more – accurately and efficiently. This unique system combines trained technicians, specialized equipment, and a carefully calibrated stone slurry grout to lift concrete with maximum control.
From the moment you request an estimate to the final lift, ControlLevel is the complete experience behind every concrete leveling job and is exclusively provided by A-1 Concrete Leveling.
ControlLevel History
Stone slurry grout leveling has been A-1's foundation since 1982, when co-founder Grover Miller developed an efficient pumping system – including an adjustable piston and screener on a mid-size truck – in Akron, Ohio. This innovation made precision concrete leveling practical and affordable for everyday homeowners during a period when concrete leveling was only used in large-scale commercial projects.
ControlLevel is what more than 40 years of refinement looks like today.
Why Concrete Repairs Fail
When your concrete settles, the problem is rarely just cosmetic.
A sunken driveway creates trip hazards. An uneven patio directs water toward your foundation. A settled garage floor becomes a drainage problem.
If left unaddressed, these issues lead to bigger, more expensive repairs… including tear-out and replacement.
The solution sounds simple: lift the slab back into place. But how that lift happens determines whether the repair lasts two years, twenty, or more.
Concrete leveling problems often trace back to a lack of control during the repair itself:
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Partially filled voids leave the slab unsupported and lead to cracking
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Over-lifting shifts the problem from one panel to the next and cannot be reversed
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Poor soil contact allows water to erode the base, and the slab can sink again within a few years
ControlLevel exists because precision is the difference between a repair that holds and one that does not. From the estimate to the final cleanup, it gives A-1 technicians the tools and training for a consistent experience and better results.
How ControlLevel Works
The process:
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Small holes – typically between ⅝ and 1 inch in diameter – are drilled into the affected slab at precise, strategic locations.
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A limestone-based slurry – made from pulverized limestone and water, both locally sourced and environmentally-friendly – is pumped beneath the slab at a low, controlled speed.
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The technician adjusts the consistency of the mix in real time based on what they are encountering beneath your slab and the maximum void-fill. For example: thinner for filling deep voids vs. thicker for heavy lifting and final leveling.
That real-time adjustment and adaptability is not possible with polyjacking, where foam expands at a fixed rate once injected, and is not standard with mudjacking either.
The entire job is performed from a self-contained, mid-size truck designed for minimal disruption, quick repairs, and to protect your lawn, landscaping, and surrounding structures.
Most jobs are completed in a single day with surfaces typically ready for foot traffic immediately and vehicle traffic within 24 hours.
Want to see the complete A-1 concrete leveling process in action? Learn more about how A-1's concrete leveling process works from start to finish.
What to Expect from ControlLevel
| What You Care About | What ControlLevel™ Provides |
| Level concrete surfaces | Lift precision tailored to your specific slab, soil, and surroundings |
| Long-term durability | Maximum void fill and soil contact |
| Minimal disruption | Mid-size trucks, careful setup, and fast repairs |
| Fewer future repairs | Real-time adjustments that reduce the risk of over-lifting and re-settling |
| Confidence in your investment | Save up to 70% off the cost of replacement, thanks to over 40 years of refinement and consistent results nationwide |
What Sets ControlLevel Apart
Plenty of companies can lift concrete. ControlLevel is the only system built around complete control at every step.
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Adaptable Material Consistency
The thickness of the slurry can be changed on the fly by the technician based on what they see and feel beneath your slab. This helps prevent over-pumping and eliminates guesswork to better ensure voids are fully filled rather than partially addressed.
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Controlled, Gradual Lifting
ControlLevel raises the slab gradually and evenly by filling the empty space beneath the slab. This level of control helps avoid any sudden shifts, uncontrolled expansion, and the towering (or pancaking) stacks of foam or dried mud beneath the concrete that can result from other methods.
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Technicians Trained in the System
Every A-1 location uses ControlLevel and follows the same internal training standards, which means you get consistent results whether the job is in Buffalo, New York, Denver, Colorado, or Atlanta, Georgia. Nationwide experience. Local expertise.
When the lift is done right, it lasts longer.
ControlLevel vs. Other Concrete Leveling Methods
There is no shortage of ways to lift concrete. What separates them is not just what goes under the slab – it is how much control exists over the process once it starts.
| ControlLevel™ | Polyjacking | Mudjacking | |
| Material | Limestone slurry | Expanding polyurethane foam | Mud, sand, and/or soil-cement slurry |
| Material adjustment | Real-time, by the technician | Fixed expansion rate | Limited |
| Risk of over-lifting | Low | High | Moderate |
| Void fill quality | Maximum | Variable | Variable |
| Environmental impact | Eco-friendly, locally sourced | Synthetic materials | Variable |
| Availability | Exclusively through A-1 | Many providers | Many providers |
Polyjacking
Polyjacking became popular because foam acts and sets fast, and the marketing around it was effective. But fast and precise are not the same thing. Foam expands on its own schedule once injected, which makes fine-tuned control difficult, but not impossible.
Check with your local A-1 location if you are interested in polyjacking services.
Mudjacking
Mudjacking has been around even longer than stone slurry grout leveling, and in capable hands, it can be a serviceable repair. But the material is heavier, the mix is less consistent, and the level of real-time adjustability that defines ControlLevel is not part of the process.
Each method has its place. For homeowners, real estate agents, or facility managers who want the repair done right the first time, ControlLevel is designed to deliver the control and durability that matter most at a cost that is consistently more affordable than replacement.
The Bottom Line
Your existing concrete may not need to be replaced. It may just need to be repaired the right way.
ControlLevel is why homeowners, businesses, and communities nationwide have trusted A-1 for more than 30 years.
When you’re ready, your local A-1 Concrete Leveling team is ready to assess your concrete, answer your questions, and deliver safer, more level, and longer-lasting concrete.
Request your free estimate today!
Frequently Asked Questions About ControlLevel
What is ControlLevel exactly?
ControlLevel is A-1 Concrete Leveling's proprietary system for lifting and leveling settled concrete slabs. It combines expert technician training, specialized equipment, and a limestone-based stone slurry grout that allows for real-time adjustments during the lift. No other company offers ControlLevel.
Is ControlLevel the same as mudjacking or polyjacking?
No. When it comes to material, ControlLevel uses a stone slurry grout made from pulverized limestone and water, which is different from the expanding polyurethane foam used in polyjacking and the soil-based mix used in traditional mudjacking.
Beyond the material, and more importantly, ControlLevel allows technicians to adjust the mix consistency in real time during the lift to adapt to changing conditions beneath the surface. That level of control is not available with other concrete leveling methods.
How is ControlLevel different from regular stone slurry grout leveling?
Stone slurry grout leveling is the method. ControlLevel is the precision system A-1 has built around delivering that method at the highest possible standard. The difference in your experience and results is in the training, the equipment, the real-time adjustability, and the consistency across every job and every location nationwide.
Is ControlLevel more expensive than other methods?
ControlLevel is consistently more cost-effective than concrete replacement, saving customers up to 70 percent compared to tearing out and replacing. Its precision also reduces the likelihood of repeat repairs, which adds up significantly over time.
How long does a ControlLevel job take?
Most jobs are completed in a single day. Surfaces are typically ready for foot traffic immediately and vehicle traffic within 24 hours.
Is ControlLevel safe for my yard, plants, and pets?
Yes. The limestone slurry used in ControlLevel is made from pulverized limestone and water, both locally sourced and environmentally safe. It will not harm your landscaping, plants, or pets.
Is ControlLevel available in my area?
ControlLevel is available exclusively through A-1 Concrete Leveling's nationwide network. No other company provides it. Find your nearest A-1 location and request a free estimate.
Request a Free Estimate
Find out how much safe, beautiful concrete will cost you with a free onsite estimate from an A-1 franchise near you.
