Our crews go out approximately 2 to 3 hours before the snowstorm has finished, over the years our crews have had the most success with this method. It means most of the major accumulating snow has finished and we can safely and effectively remove it with the least inconvenience and expense to you. If you are at the beginning of a route and more than 1” of snow falls after we come your crew does go back and remove significant accumulation free of charge.