Concrete Chiropractor was established in 2000 as a garage floor repair service. We specialize in providing garage floor repair services affordably at a third or half of the cost to replace on both residential and commercial applications.

Problematic concrete can cause create problems ranging from town safety violations, insurance cancellations, devaluation of property value, delays in Real Estate sales and more. It’s important to maintain your concrete and fix any problems ASAP.

E-mail from the customer concerning a Concrete Floor Repair in NJ

Hi Chris,

I found your company on the web. I called into the office to get your email address. Is this a slab jacking project that you might have an interest in??

This is the building.

Garage Floor Repair, Concrete Chiropractor

It measures 24′ x 30′ and has a slab that was poured in 2 sections of 12′ x 30′. The problem with the slab is that the back end has cracked and sunk down almost 5″ toward the rear.

Garage Floor Repair, Concrete Chiropractor

We rented a backhoe and dug out under the slab to install a support.

Garage Floor Repair, Concrete Chiropractor

We created a hollow for the insertion of a support column. We dug in about 6 feet. The cause of the sinking turned out to be settling earth beneath it.

Garage Floor Repair, Concrete Chiropractor

There is a 4″ to 6″ gap between the floor and the earth. The entire slab seemed to be held up by the rebar.

Garage Floor Repair, Concrete Chiropractor

We created a column using concrete block. The jacks were used to push the bricks down under the weight of the slab. The idea was that eventually we would hit solid ground to establish a foundation point. We went down about 6 feet before that happened. There are 18 blocks piled up on the load bearing column.

Garage Floor Repair, Concrete Chiropractor

We were able to lift the slb up 4inches. However we lost some of that when we transferred that last block onto the column. ( I know there were better ways of doing this, but we were on a limited time schedule and this seemed to work at the time.) The net result was that we gained 2 1/2″ on the low point of the slab.

Here you can see where it rests now.

Garage Floor Repair, Concrete Chiropractor

The good news is that the floor will be stablilized for a while. The bad news is that we still have a 4-6″ gap under a good part of the floor and it may sink again.

My questions are as follows:

  • Is slab jacking a cost effective means to fix this problem ??. My fear is that it just might be too much money for this size and value of the building.
  • Is there another solution that might be better ?. I have considered just knocking some holes in 2 or 3 sections of the slab and pouring a low slump concrete to fill in as much as possible.
  • Or perhaps can I get away with using flowable fill. Will flowable fill support this load?.

Our Vitelli Case Study will show how we were able to save the project where others had failed. Click here to open the PDF and read the complete case study summary.

Your comments and quote is welcome.

Please feel free to contact me. Call anytime during the day. I work at home.

R. Victor
Sussex, NJ