In addition to work for Rossoe Energy System's contract customers we will repair or tune-up most residential oil or gas furnaces or hot water boilers. Rossoe charges a simple diagnostic fee to come out and determine what repairs are needed. Our technicians will then provide you with the total cost for the determined repairs (not including any unseen problems). If you decide to have the repairs made by Rossoe you will know the cost before we begin the work. We charge overtime for calls after regular hours and Saturdays, and we charge double-time for calls on Sundays and Holidays. Our technicians carry parts in their vehicles for all tune-ups and the most common repairs.