Concrete sidewalk violations are on the rise in NYC for 2010. The budget deficit has taken a toll on City services and has to be addressed. The City will remove the violation by hiring City contracted concrete contractors. The cost will reflect on your next years property tax bill. The price normally is 20-30% higher than a private contractor hired by the Property Owner.
Also, concrete patios and curbs are a target for insurance companies. The insurance company will give you a better rate if you fix all potential accidents and safety issues.