What is the average cost to lift my concrete with polyurethane?
Raising concrete is an extremely affordable option when compared to replacement. Since every job is unique in terms of the amount of material needed and the size of the area being raised, giving an average cost is difficult. In general, raising concrete with polyurethane is typically 50%-80% less than replacement. The size of the area and the amount it has sunk are the biggest factors that determine the price. You can learn more about this by reading our average cost page.
Polyurethane foam vs mudjacking – which is better?
Both methods will certainly lift and level your concrete however there are many advantages to using polyurethane over mudjacking. Below are the main advantages and benefits to using polyurethane over mudjacking:
Longevity: Since polyurethane is extremely lighter than mudjacking material the chance of re-settling is greatly reduced.
Appearance: Polyurethane requires much smaller injection holes, making the work much less noticeable than mudjacking.
Process: A much cleaner process and the area is usable 15 minutes after installation vs 24 hours with mudjacking
Contractors who argue that mudjacking is the best method are either misinformed or are just reluctant to update their equipment and process. You can learn more about in greater detail by checking out are polyurethane vs mudjacking page.
How long will polyurethane last after the concrete is lifted?
This is a very common and important question. Our polyurethane since it’s a synthetic material, will not change shape or breakdown like other materials such as sand or cement. However, the ground can and will move overtime depending on soil conditions, especially with the frost cycles we experience here in the Midwest. Also, water intrusion from poor drainage can erode the soil, which can cause re-settling. Lastly, a long dry spell over the summer can cause the ground the shrink, which can impact your concrete. So typically if there is any re-settling it’s most likely due to soil conditions, poor drainage or extreme weather all of which would also affect new concrete.
What can be done to prevent my concrete from sinking?
The key to preventing concrete from sinking is by filling voids and keeping water away. Open voids below your concrete should be stabilized with polyurethane foam. All open gaps such as cracks and expansion joints should be caulked to stop water from getting below the slab and eroding the base. Also, all water should be directed away from your concrete such as downspout. The sides of your concrete should also be properly graded so that the base cant wash away.