Proudly serving Minnesota and Wisconsin - including Duluth, Minneapolis, Eau Claire and nearby areas

Interior Slab Leveling

Uneven floors, cracks at doorways, and gaps along walls point to a settling interior slab. DBS restores sunken garage and interior slab floors with PolyLevel®, a non-invasive injection technique that raises the floor back to its original position without major upheaval in your home.

Raise Sunken Interior Slabs Without Tearing Up Your Home

Interior slabs are often poured on wet, weak, or poorly compacted soil. Over time the slab settles, floors slope, and gaps open at doorways and along walls. Left unrepaired, a settling slab can cause serious damage and makes a home very difficult to sell.

Traditional fixes, like self-leveling compounds, mudjacking, or pier installation, are invasive and often do not fix the failing soil underneath. PolyLevel® injection raises the slab through penny-sized ports, reaches 90 percent rigidity within 30 minutes, and addresses the source of the problem.

Levels garage floors, basement slabs, and slab-on-grade rooms
Closes gaps at doorways, walls, and baseboards
Only small sections of finished flooring removed for access
Foam expands to fill voids and stabilize the soil
Floor returned to original position, flooring restored
No significant upheaval inside the home

Interior Slab Leveling Methods Compared

There are several traditional ways to deal with a sunken interior slab. Most are disruptive, and most treat the symptom rather than the soil.

Traditional methods

Compounds, Mudjacking, Piers

Self-leveling compounds resurface without lifting and add weight. Mudjacking requires large holes and messy slurry indoors. Pier installation is highly invasive. None of these reliably fixes the weak soil that caused the settlement.

Recommended Solutions

PolyLevel® Interior Leveling

Penny-sized ports bored only in affected rooms. Polyurethane foam expands beneath the slab, raising it until the floor is level, reaching 90 percent rigidity within 30 minutes. Small flooring sections are removed and restored over the ports. Minimal disruption, lasting result.

Schedule your free
Concrete Repair Inspection

Schedule your free
Concrete Repair Inspection

Interior Slab Leveling: What to Expect

1.

Free on-site inspection and estimate

A DBS specialist evaluates the slab, identifies affected rooms, and presents a written proposal.

2.

Flooring access

Very small sections of existing finished flooring are removed to access the slab.

3.

Ports bored

Penny-sized holes are bored into the slab in each affected room.

4.

Foam injection to level

Polyurethane foam is injected through the ports, expanding and raising the slab until the floor is level. The foam reaches 90 percent rigidity within 30 minutes.

5.

Flooring restored

Finished flooring is restored over the injection holes, leaving the room ready to use.

Why Level Interior Slabs with PolyLevel®

Non-Invasive

Penny-sized ports and small flooring access cuts replace the demolition required by traditional slab repairs.

Fast Rigidity

Injected foam reaches 90 percent rigidity within 30 minutes, so rooms return to service quickly.

Fixes the Source

Expanding foam fills the voids in weak, poorly compacted soil, addressing the cause of settlement, not just the symptom.

Protects Resale Value

Slab settlement scares buyers. A documented, professional repair removes a major obstacle when selling.

Whole-Home Capability

Garage floors, basement slabs, and slab-on-grade living areas can all be leveled with the same system.

Long-Lasting

PolyLevel® is waterproof, inert, and does not degrade, providing a durable, permanent lift.

Restore Level Floors Without the Demolition. Get a Free Inspection

DBS provides interior slab leveling throughout Minnesota and Wisconsin including Duluth, Eau Claire, Menomonie, Hibbing, and Mountain Iron. Every estimate includes an on-site inspection and a written proposal with no obligation.

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Concrete Repair
Homeowner Reviews

your neighbors are talking about us…

DBS Repair has been lifting, leveling, and protecting
concrete in and around homes across Minnesota and Wisconsin,
from Duluth to Eau Claire, for nearly 15 years!

See what your neighbors have been saying about DBS Repair’s
concrete living, leveling, and void filling services.

Jodi Henke
1 week ago
The team showed up and were very conscientious about protecting our property while completing their work. The communication was great, they kept us informed all the way through the process. The employees that did the concrete leveling did a great job and were very professional. We would use your services again!
The communication with this company was excellent. They contacted me promptly, followed through with the appointment and were on time and super efficient. The presentation was professional and the cost was what we expected. But best of all, we can afford the solution to our concrete problem! A win for us! 7/20/26 Update: Well, the concrete driveway project is complete! And It turned out great. Joe was the foreman on the job and he was so professional and nice. He called before they came, updated me several times during the day, and sent me a series of pictures of the finished job. The entire experience deserves an A+. This company is top notch!
Megan Rosenbrook
3 weeks ago
Myke came by to give me a quote for a garage concrete lift and leveling project. I appreciated the extra time he spent answering my questions and making sure I understood the work that would be completed. I’ve had a few quotes from other companies in the area and he was very helpful in understanding my options and what would make sense for me (both in terms of cost and long term impact).
Ang A
3 weeks ago
The person we met with was very helpful and knowledgeable. He can up with a good plan for our concrete issues.
Ryan Blake
4 weeks ago
Had concrete leveling done. Scheduling was easy; getting a quote was straight forward with no pressure. Crew showed up on time and completed the job on schedule. No complaints, job well done.
Rick Chapek
2 months ago
I had some concrete lifted in a portion of my 22 year old pool deck. The area in question had washed out some under 35x11 section. The guys were very prompt on the day they were to arrive and the communication from them was excellent. Unfortunately I am delinquent in writing this review so I forgot their names. BUT... what I can tell you is that they were both some of the kindest and polite individuals I have ever had do work on my home. Very interested in exactly how i wanted things to end up and very thorough in the execution of their process. During the process they checked in with me on a couple of occasions to make sure they were accomplishing my objectives. It was important to raise the concrete an exact amount for the 2nd step of the project (which has not commenced yet). The DBS techs checked in with me to make sure things were as they should be before buttoning everything up. Overall I was pleased with the work that was performed and VERY impressed with the techs that performed it. I will definitely use DBS again when the need arises.
Marisa McAndrew
2 months ago
I haven't had any repairs done yet, but Myke came to give me an estimate on my concrete driveway and sidewalk. Everything that he explained was clear and thorough. He's very knowledgeable about the products they use, how the process works, and what to expect. Myke was very patient with all of the questions I had. He didn't make me feel like I was being undermined at all and it was sincerely appreciated.
Mark Ditter
2 months ago
We were very impressed with the concrete repair done on our large front steps. We have experienced significant settling in the past thirty years and we finally are addressing the issue. Shane Ng, the foreman, explained the process at the beginning and kept us informed throughout. They were very efficient and did a great job cleaning up. The results are excellent.
Brett Brusse
3 months ago
Had DBS come out and give me a quote on repairing a basement wall made of concrete blocks. The wall had big stair stepping cracks, horizontal cracks, and the wall was bowing in. I had multiple company’s out for quotes. The Guy from DBS, Henrik was the first quote I received. He didn’t try to scare me or push me into a sale. He told me what was wrong and what I needed to do to repair it. I didn’t have the same experience with other contractors, I was quoted thousands of dollars of repairs that weren’t necessary and was quoted obnoxious amounts of money to fix it. DBS was always upfront annd honest. Obviously I went with DBS. They installed brackets to secure the wall and straighten it. They were great to work with, their goal was my goal, ensuring the integrity of the wall. The whole process was very easy from my side. I can’t believe the amount of work Shane, the installer was able to get done in one day. Great, honest company. I’d recommend them to anyone.
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Concrete Repair Inspection

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Concrete Repair Inspection

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