Solid Ground offers the most professional, state-of-the-art concrete lifting and leveling for less then half the cost of replacement. Solid Ground levels and lifts your concrete cracks with polyurethane. Here are just four, of the many reasons why Solid Ground only uses Polyurethane? 1. Polyurethane is hydrophobic, in other words polyurethane is 100% water proof. Yes not merely water resistant, but truly water proof. The pressurized hot injected liquified polyurethane, will displace moisture and while at the same time, seek out voids and stabilize your concrete. 2. Polyurethane has a rapid cure rate. This allows Solid Ground to have your concrete cracks job completed quickly. With in minutes, after completion, your patio, garage, driveway or factory floor is ready to use. 3. Polyurethane is injected through 5/8 inch hole. We will drill dime sizes holes that are easily patched and blend in perfectly. 4. Polyurethane is 100% green. Solid Ground and you are part of the renewable recycling answer. We guarantee that when we have lifted a slab of concrete with concrete cracks it will not sink or settle for at least three years or much longer. The liquified hot polyurethane finds the problem area and fills it. If for some reason, it does subside, we will come back and lift it again.