The best concrete lifting method can depend on various factors such as the size of the area to be repaired, the extent of the damage, and the underlying cause of the problem. Two popular methods of concrete lifting are mudjacking and polyurethane foam injection. Mudjacking, also known as slabjacking, involves drilling holes in the concrete slab and pumping a slurry mixture underneath to lift it. Polyurethane foam injection, on the other hand, involves injecting expanding foam underneath the slab to lift it back into place. Both methods have their advantages and disadvantages, and the best method for a particular situation will depend on the specific circumstances. For example, polyurethane foam injection is often preferred for smaller repair jobs because it requires fewer and smaller holes and the foam is lightweight and durable. On the other hand, mudjacking may be better suited for larger, heavier slabs because it is more cost-effective and can lift heavier loads. It's recommended to consult with a professional concrete lifting contractor to evaluate the damage and recommend the best lifting method for your specific needs. They can evaluate the situation and provide an accurate estimate of the cost and time required to complete the repair.