I have used Wojo's Heating & Air Conditioning for nearly four years. They do awesome service work. Their employees are friendly, polite, and they show up on time. The last two times they came out both related to a furnace. Once to look at a furnace issue, and then to install a new system for me. Overall, I am impressed by Wojo's Heating & Air Conditioning's reliability - that is why I keep on using them!