We are a fully GC licensed Sinkhole Repair Company. APD Advanced Stabilization offers the #1 WARRANTY & PRICE for the following services in ALL OF FLORIDA: Pool Deck Leveling, Existing Interior/Exterior Concrete Slab Leveling, Waterproofing, Void-Filling, Deep Injection Chemical Grout, Stair-step cracks repair/Foundation stabilization. Free quote. Call today!