Sidewalk concrete repair
We had our sidewalk poured 2 years ago and the top has all crumbled. They poured it in the rain and we have had problems every year since. Contractor who did it will not fix it. Said it was our fault???? The top layer has come off so when you walk on it your walking on stones. Can we put a top coat on it or does it have to be dug up and replaced by someone else?