From Cracks to Curbs: Choosing the Right Concrete Contractor in Queens, NY While walking in Queens, you will find sidewalks with cracks due to tree roots and also find a curb crumbling at the edges after another rough winter. Harsh weather, dense traffic, and aggressive growth of street roots cause cracks and curbs, but according to the strict rules in Queens, a property owner is legally responsible for the maintenance of sidewalk cracks and the curbs on their...