I purchased a new Lennox gas furnace and air conditioner in Oct. 2017 and had both installed at the same time. The pre-purchase assistance, consulting, and recommendations were exceptional. My previous systems were about 25 years old, so we needed some sizing and ductwork help. Mark was very capable and really had a deep knowledge of HVAC which built great confidence in our buying decision. The scheduling and installation were flawless. Because of the size of our project they estimated 3 full days for removal of old, new ductwork, and installation. The two techs worked hard and continuous and finished the job in two long days. They also took plenty of time to test the system and provide training and recommendations on the best use of our new WiFi enabled thermostat and iComfort control panel. We couldn't be more pleased. It was a large investment and their attention and customer service reflected their appreciation for our business.