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Avatar for Groundworks
Groundworks
4.0(
148
)

Serving Union, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Warranties offered

"Quicker than I thought, sturdy equipment. Seven jacks, seven concrete disks, a pallet load of gravel, 3 4x4 beams. I do believe is was done right. My floors are level, that's what I wanted. No more bounce."
Foundation
Foundation
Foundation
Foundation
Foundation

+13

205 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Waddell & Sons
Waddell & Sons
5.0(
9
)

Serving Union, SC and surrounding areas

In business since 1972

Free estimates

Emergency services offered

"They were very easy to communicate with and were always quick to respond to my questions. They were specific in letting me know the exact amount of concrete it would take to complete the job. Also, they negotiated the labor costs and service was very professional."
Additional Photos
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Additional Photos
Additional Photos

+14

Recommended by100%of homeowners
Avatar for Grigg & Sons.
Grigg & Sons.
4.2(
12
)

Serving Union, SC and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"They were fantastic. Did everything I asked them to do and did a professional job with every aspect of pouring the pad for my future garage. Installed the floor drain for me just as I asked. Quick response and Quick professional job. VERY HIGHLY RECOMMENDED FOR ANY CONCRETE JOB YOU MAY WANT ?. THANK YOU GENTLEMAN."
Circle Driveway
Carport Slab
Circle Driveway
Additional Photos
Additional Photos

+3

Recommended by81%of homeowners
Avatar for CNT Foundations, LLC
CNT Foundations, LLC
3.9(
67
)

Serving Union, SC and surrounding areas

In business since 2004

Free estimates

Warranties offered

"Todd, the estimator and Greg who led the team doing the repair work were very professional. Greg kept me well informed throughout the process and answered all of my questions. They successful at closing the gap in the brick wall which was a huge bonus!"
Chimney Repair
Response time1 day
Recommended by81%of homeowners
Avatar for All Dry Of The Carolinas Inc
All Dry Of The Carolinas Inc
4.3(
48
)

Serving Union, SC and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"

I thought they did a real good job. It does not smell or anything. If it was tall enough it looks like a room you could be in to live in, but it is our crawl space. They are really good. We get an annual checkup and their services are kind of expensive, but my husband checks every time it rains and now the water does not sit underneath the house or mess up our foundation. We got a military discount and they check the humidifier to make sure it is doing what it is supposed to do for about $99.  

"
Additional Photos
Extension
Multiple extensions
Underground extension with outlet
Before

+4

Recommended by90%of homeowners
Avatar for CNT Foundations
CNT Foundations
4.5(
37
)

Serving Union, SC and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"They didn't end up doing the work. They were really high on what they wanted to do. Other people who looked at the porch said that it was not causing an issue with any water intrusion and that there doesn't seem to be any signs on the posts that this could have been recent, it could have been long ago. So no work was done. It was a front porch that had just the level concrete on one side was dipping just a little bit. I think they were going to pump it up from underneath or something like that to level it out. I would say that their response time and their professionalism of getting the quote to us on a timely manner was good. The quote was high and yet the work was not necessary according to other quotes. They should be honest to say when repairs are necessary and when they are not. The guy who showed up was nice and professional and was on time. There was a decent response time."
Additional Photos
Additional Photos
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+270

Recommended by84%of homeowners
Avatar for Cantey Foundation Specialists
Cantey Foundation Specialists
4.0(
32
)

Serving Union, SC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We found Cantey Foundations to be the solution to our sagging floors and cracking walls - even after speaking with some of the other popular alternatives. Our team, consisting of Dallas, Corey, David, Dallas and Alex((2 Dallases),were professional, knowledgeable, polite and efficient. Not only did we see a definite change in the sloping floors, but the cracks closed up and doors stopped sticking. When the crew was done, they cleaned up everything. Although it is only a week since the work, we do not have any concerns because of Cantey's warranty, which guarantees the work for 25 years. We were able to put off other recommended work for a later date, and plan to take advantage of that when our pocketbook allows. I will have no problem calling them back."
Before PolyLevel LIft
New Gutter Shutter System
Concrete Before Columbia, SC
Driveway Level & Lifted
This is just one of the foundation cracks we found on this foundation. It's what we call a stair-step crack.

+137

Recommended by90%of homeowners
Showing 1-10 of 11
Concrete Leveling questions, answered by experts

Polyjacking can be a permanent solution to sunken concrete if you also address the underlying issue—like poor drainage—at the same time. The polyurethane material itself can last as long as or even outlast the concrete you’re lifting it with. Your sunken concrete issue will likely return if you don’t couple polyjacking with proper drainage to prevent future soil movement and sinking.

The method involves lifting settled concrete using pressurized cement slurry via drilled holes. This solves uneven surfaces and prevents further settling.

Concrete leveling can last anywhere from five to 10 years or more, and in some cases, it can be a permanent solution. The longevity depends on the method used and whether the underlying cause of the sinking is addressed. For example, mudjacking typically lasts five to 10 years, while polyjacking can last for 20 years or more. It's best to consult a professional for an accurate timeline based on your specific situation and any factors that could cause the issue to recur.

Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.

It’s best not to perform mudjacking in the winter unless the ground temperature remains above freezing. Freezing temperatures can cause the slurry to harden too quickly, compromising its strength and longevity. Concrete is also more susceptible to cracking and splitting in cold temperatures, so there’s a higher risk of damaging the slab during the drilling and lifting process in winter.

The Union, SC homeowners’ guide to concrete leveling services

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