If the support from the soil is uneven, some areas of your concrete are going to sink and crack, resulting in an unstable slab. While anything but pretty to look at, uneven concrete can also be a hazard for kids, employees, and anyone walking around the area.
Once you’ve had your concrete slab leveling completed, having your expansion joints sealed with silicone will help protect the slabs from further damage. By not allowing water to penetrate beneath, you can avoid future settling and washout problems.