We recently completed a project in Arlington that included several interior piers. This particular house was vacant and the owner was planning to install new carpet so we were able to break out concrete from the slab to install the piers.
To install the piers, our crew members create small areas for digging. After the holes have been dug, we begin driving piers. For this particular house, concrete piers were chosen.
When we install interior piers under a slab foundation, there are two options. One, is to break out and replace parts of the slab. The second way is to dig tunnels by hand to install under your home.
There are advantages and disadvantages to each option.
Overall, we recommend tunneling if you are occupying your home. The breakout process is more invasive than tunneling and requires the room(s) to be cleared of all furniture and flooring. If your home is vacant, like this one which is being renovated for rental, or you are planning to replace your flooring, we are happy to break out the concrete. Your estimator will help you determine the best option for your needs.
It does not matter if you are installing concrete piers or steel piers as the process is identical for both methods.