Bill and his team are our go-to for all HVAC/Gas related issues. Ever since we've moved into Durham Region several years ago they consistently went far above the call of duty to provide flawless service through multiple visits. First they helped to fix and extend the life of pre-existing units (furnace, ac, 2 gas fire places) and then later worked to provide replacements which are working far better than what we had before.
On several occasions unexpected issues showed up during work which resulted in the whole job being more involved and/or taking longer than originally scheduled - Bill never shied away from making sure he left everything in a perfect state. His attitude to the work reminds of me the Steve Jobs attitude of "it's never too late to do it right."