Every job starts with the same question: why did it move? Penetrometer testing answers it before we quote, so you buy the repair that holds.
High-density polyurethane is injected through small ports in the slab. It expands, fills the void, and raises the concrete back to grade. The material is lightweight and closed cell, and our estimate starts with measuring the soil beneath the slab.
When a footing settles, foam alone will not hold it. We correct settled and out-of-level structures with push and helical piers, adjustable jack systems, and deep injection, working with structural and geotechnical engineers when the job calls for it.
Cracks and control joints can let surface water reach the sub-base. We seal them as part of a plan to protect the concrete and the material supporting it. If the slab has already moved, we test first so sealing is paired with the right repair instead of hiding the cause.
Most settlement is a water story, a compaction problem, or both. We fill the washed out voids under driveways, patios, walkways, and garage floors, and stabilize the soil that stopped supporting them. Testing determines whether shallow foam, deep injection, or another approach fits the site. Poly Flow also performs geotechnical soil work on canals, cisterns, and other structures. Call if your project falls outside residential.