A family in Dunwoody, GA recently began the process of refinishing their basement. The contractor they hired quickly noticed that the corner of the house was sinking into unstable soil. He wisely recommended that they find a deep soil lifting contractor, and they ended up contacting GCS.
When major structural elements are sinking, the repair procedure is different from your standard slab lift process in which high-strength polyurethane foam is injected just beneath the sunken slab. The deep structure lifting procedure consists of injecting high-strength polyurethane foam deep into the soil beneath the structure, solidifying and lifting the substrate - and leveling the structure in the process.
In this case, the GCS crew drove four temporary injection pipes eight feet down into the supporting soil (two injection pipes on each side of the sunken corner). They injected Alchemy-Spetec's AP Lift 430 beneath the foundation and raised it back into place. The owners were glad to be back on track with their basement renovation project.