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Avatar for Groundworks
Groundworks
4.6(
308
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knowlton, NJ and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Emergency services offered

"am writing to express my sincere appreciation for the outstanding service provided by Corey throughout my recent basement sealing project. From the very first interaction, Corey demonstrated professionalism, courtesy, and an impressive depth of knowledge. His ability to clearly explain the scope of work and answer all of my questions put me at ease regarding this significant and costly undertaking. What truly set Corey apart was his patience and dedication, even after the project was completed. He remained available to address my concerns and ensure that I was fully satisfied with the outcome. His thorough approach and commitment to customer satisfaction were instrumental in my decision to move forward with your company, even at a higher cost. It’s rare to encounter such a level of integrity and care, and Corey’s efforts have made a lasting impression on me. It’s thanks to professionals like Corey that I have full confidence in the quality and value of your services, and I would gladly recommend ground works to others based on this experience."
Basement
Basement
Basement
Basement
Foundation

+15

Response time1 day
344 neighbors recently requested a quote
Recommended by92%of homeowners
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."
Additional Photos
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Additional Photos
Additional Photos

+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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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 and did an analysis of our exterior drainage system, as we were having some puddling issues in the front and rear of our yard. We had just moved into the home a few months prior and Larry also did an analysis of our basement as we were having some concerns about the slightly bowed wall in our basement. Larry was very thorough and took a lot of time to go through the details of the exterior french drainage system he would install. He responded back to us in a timely manner and was extremely reasonable with their quote compared to other bids we had received from other contractors.
Larry and his team came out to the house and made quick work of a tedious job.  They took good care to keep the job-site as tidy as possible. Although Larry changed from the original plan, we felt comfortable with this as he was very thorough when explaining the reasons behind the change and we felt he had our best interest at heart. If we had any questions Larry was always available to answer them for us even when we called at 9pm.
We had a walkway that they had to cut through in order to run the piping for the drainage and Larry even added concrete to fix the walkway even though it wasn't in our original proposal.
We feel like with the work that was completed we got an excellent price and we have the peace of mind knowing that the job was done properly.
"
Recommended by95%of homeowners
Avatar for Clark Chimney & Masonry
Clark Chimney & Masonry
4.8(
32
)
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 by96%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 questions, answered by experts

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

Mudjacking restores level surfaces, prevents further damage, and is more cost-effective than a full replacement.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

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.

A sinking foundation can be lifted, most often by installing piers to re-level and support the weight of the house. Depending on the cause and extent of the sinking, other methods to lift a foundation include underpinning and mudjacking. Consult a foundation repair pro to determine the best way to lift your sinking foundation. 

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.