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Top-Rated Concrete leveling pros in Knowlton - Updated Nov 2026

Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.2(
214
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Eric and his helper arrived on time and were professional greetings me. what I noticed the most, they enjoyed their work and wanted to ensure I was happy with the concrete leveling job. They were respectful of my landscaping and cleaned up. Also, Have to give a shout out to Angie and Kyle for working with my schedule. So glad I chose Quality1st to level the stamped concrete around my pool."
Driveway Restored With PolyLevel
NJ Basement Remodeled
Dark Basement Transformed
Basement Transformation
Unfinished Bedroom

+251

Recommended by84%of homeowners
Avatar for Raza & Sons Construction, Inc.
Raza & Sons Construction, Inc.
5.0(
2
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

Platinum Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 6 years of experience serving Brooklyn, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Response time1 day
Recommended by100%of homeowners
Avatar for Advanced Creations
Advanced Creations
4.7(
26
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

Free estimates

"it went amazing. Even though it was not a very large job, Ed came out three times to discuss project and my reservations. He was punctual, very informative and very congenial. I hired him and although we had some delays caused by wet weather, he finished the job earlier this month. His crew was outstanding in every way. Ed came by every day to make sure everything was going perfectly and it was. Everything was cleaned up meticulously and the crew even did a few extra things esthetically to make up for the slight delay caused by weather. The result was beyond my expectations and I have received so many compliments on it, from even my most critical family members. ABOVE AND BEYOND!!! Thank you Ed and company. I will highly recommend you and will have other projects for you when budget permits."
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+8

Recommended by100%of homeowners
Avatar for Essex & Morris Contracting Co Inc
Essex & Morris Contracting Co Inc
4.7(
172
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Wow! Anthony and his crew were great! Had to wait a few weeks to get the project started, but showed up as promised and delivered excellence! His crew worked sun up to sun down to get everything done on time. Bond posted and permit with town all went smoothly. The coordination of cement truck and even helping lower water & sewage pipe in driveway was no issue. Anthony demonstrates absolute professionalism and is a real pleasure to work with. I would recommend him over and over again to anyone in need of a new driveway/walkway/ or garage floor!"
Additional Photos
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+2

Recommended by98%of homeowners
Foundation Experts, LLC
4.5(
27
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"Larry came out for an estimate quickly.  I had to postpone work a bit because of some other issues with the house.  When I was ready to go, Larry came back out and we went through everything again.  This time a few other issues were brought to light.  I went with Foundation Experts because the recommendations seemed more logical than other ideas that had been proposed by other companies.  Once the contract was signed, work began quickly.  Quite a few workers were there for different aspects of the job.  Everyone was very friendly and professional.  Andy was involved in different aspects of the project than the others and was very thorough in explaining what he was doing and why.  The job didn't really take too much time and was spread out over 2 days.  Everything looks good.  The initial reason for my call to them was because of water pouring into my basement when it rains.  Hoping that what they did will do the trick.  Time will tell.
I have a few future projects in mind for them in the future.
"
Recommended by95%of homeowners
Avatar for Clark Chimney & Masonry
Clark Chimney & Masonry
4.5(
34
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"I recently hired Clark Chimney and Masonry for a chimney cap and liner replacement and I'm extremely satisfied with their service. The team was prompt, professional, and efficient. They took great care in ensuring a clean work environment and thoroughly explained the process. The pricing was fair, and I appreciated their friendly customer service. I highly recommend [Chimney Service Company] for anyone in need of reliable and top-notch chimney services!"
Week of 11/19
before
MARCH 2025
Week of 11/19
Philadelphia Stucco paint waterproof

+36

Recommended by92%of homeowners
Avatar for Al Arsh Construction Corp
Al Arsh Construction Corp
5.0(
10
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

In business since 2001

Free estimates

"Malik runs a very professional operation. From the time of initial phone contact with Malik (yes, he does answer his own phone) to the final post-job cleanup, this was a hassle-free project for me. Malik's crew showed up promptly each morning, and under the supervision of Malik or his equally capable foreman ("Mr. Z"), every detail of this work was performed in a skilled, highly competent and precise manner. Once begun (except for rain days), the job was continued through completion. Worth noting also is the fact that, although he was aware of my budget limitations, Malik was able to deliver a first-class job which the quality of the finished product reflects. I would enthusiastically recommend him to any Angie's List member (and will be contacting him myself for all future work on my house).
"
Recommended by100%of homeowners
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Concrete Leveling FAQs, answered by experts

Polyjacking and mudjacking can both be effective solutions for sinking concrete, but they have key differences. Polyjacking, which uses expanding polyurethane foam, is often considered a better option because the foam is significantly lighter than the cementitious material used for mudjacking. This reduced weight puts less pressure on the underlying soil and lowers the risk of future sinking. Polyjacking is suitable for any sinking concrete slab, while mudjacking is typically only recommended for non-structural concrete, such as sidewalks, patios, pool decks, and driveways. The primary drawback of polyjacking is its cost, which can be up to four times higher than mudjacking—as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.

Mudjacking is usually reserved for light-duty slabs, like patios, driveways, and sidewalks. However, it can be an effective way to lift garage slabs and concrete around the perimeter of the home, which could harm your foundation if it’s not done properly. The risk of damage is why having a professional mudjacking company carry out the work is important. This type of slab or foundation repair is relatively inexpensive, especially if you consider that a DIY job requires that you pay to rent the necessary equipment.

Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.

On average, a mudjacking repair lasts between five and 10 years, though it can sometimes last for well beyond a decade under ideal conditions. Its longevity depends heavily on several factors, including the condition of the underlying soil, environmental conditions like freeze/thaw cycles and erosion, and whether the root cause of the sinking, such as drainage issues, is resolved. Because it doesn't always fix the underlying problem of loose soil, mudjacking is often considered a temporary solution. Proper maintenance and evaluation can help extend its lifespan.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

The Knowlton, NJ homeowners’ guide to concrete leveling services

From average costs to expert advice, get all the answers you need to get your job done.