I first hired Tom during a renovation back in 2006 to upgrade the ductwork in our 100 year old house. We ended up having him install a new gas furnace and AC system on top of it. Fantastic work - my review is also on his shop's website.
We were so impressed and happy with Tom's work that when we bought a new house that needed work on the HVAC system - Tom was the ONLY contractor I called.
He has since completely replaced the ductwork in our new house, replaced the AC, and did an oil-to-gas boiler conversion. We also have Tom coming back to add heat to our basement and garage workshop when it's finished.
I have referred Tom to friends and coworkers, who have also chosen him to do their work.
I could go on and on, but the most convincing part of my review is this - you don't do this much repeat business with a contractor unless you really like their work and the way they treat you and your house. I gave Tom the keys to the house for the duration of the project, and trusted him to come/go any time.
Look at the pictures of his work, they practically speak for themselves.
Without question, Tom is my HVAC guy for as long as he's in the business, without question.