We have been using SOS Fuels for our yearly heat and A/C maintenance service for over 15 years. When discovering that we were due for a completely new A/C unit, we didn't give it a second thought of who to call and schedule an appointment with. The two SOS workmen arrived promptly, they were clean/neat, very professional and worked diligently for over 7 hrs. SOS cares very much about customer satisfaction. Their prices, honesty, quality of service and professionalism is by far the best we have ever seen!