Boost your outdoor living space to the next level with Quattro Concrete. When patios settle, they typically sink towards the house. The settling can be so severe, the out edge can be forced upward resulting in a teetering effect. The will cause poor drainage, instability and potentially cracking the foundation. Our residential foundation repair experts can fix your sinking patio in no time! We have the most experience in concrete patio levelling and a 100% satisfaction guarantee.