Had a problem with my old furnace and found out it was the circuit board. The technician was at my place within 2 hours (this was on a Sunday) of my initial call and was able to diagnose the problem quickly. Gave me an estimate of the repair immediately and other options that were available. I decided to get a quote on a new furnace as the old one was 12 1/2 years old. The sales rep called and arrived about an hour later and gave me quote on a few makes of furnaces and the specs and the rebates available. I decided to buy a new furnace and the installation was booked for the next morning. The installers Tariq and Ahmed were excellent. Very quick and thorough installation. Covered the stairs and the space with a drop sheet, removed all the old components and left everything clean and tidy. Tariq was very good in explaining all the work they did, the warranty, how to install a new filter and answered all my questions. I would certainly recommend Aire One to anyone who is looking for a furnace.