I have used Wojo's Heating & Air Conditioning in the past, and I called them up recently due to some furnace trouble. I called them in the morning before they opened up, and although I didn't need their services as an emergency, they still responded to me by midday. I felt their service tech was honest and didn't try to push a new unit on me, he just repaired the old unit at a reasonable cost. I would use them again.