Polyflow is a family-owned concrete lifting and geotechnical contractor based in Nampa, Idaho, serving the entire Treasure Valley including Boise, Meridian, Caldwell, Eagle, Kuna, and Star. We raise sunken and uneven concrete: driveways, sidewalks, patios, garage floors, and shop floors. We us high-density polyurethane foam, with most residential jobs finished in a single visit. We also repair foundations, stabilize weak and poorly compacted soil to increase load-bearing capacity, and seal cracks, joints, and surfaces to protect the sub-base... read full review »