We have never received better service than HASAN ATHER recently provided! For nearly a decade we had our furnace and air conditioner serviced by various authorized Trane dealers (since these are both Trane products) and various other organizations, only to be disappointed almost every time. Then we found Cosmopolitan Mechanical Services Inc. on Homestars. After reading several reviews specifically concerning maintenance, servicing, and repair work done by them, we decided to call about the annual maintenance work to be done on our furnace and air conditioner and about having problems we were experiencing with the air conditioner addressed. Already our first contact with Cosmopolitan was impressive: When we started to provide our street name (which consists of 3 words), the person we spoke to completed the name before we could finish the 2nd word. He even knew our street, although it is only a very short cul-de-sac and we had not yet provided the area of the GTA in which we live! Then at the appointed time Hasan Ather arrived. And he provided unprecedentedly superior service to anything we have ever experienced as well as a very inexpensive solution to our air conditioning problem. He took a most personal interest in our situation and did all of the required work with a pride and care we had never experienced before. For Hasan this was not simply “a job”: He went far beyond the call of duty, as if he were doing the very best for himself and his own family. Just one example: After he was finished, our furnace and air conditioner sparkled like brand new for the first time in nearly 10 years... There is much more that could be mentioned. In short, everything was perfect. No one we have dealt with has ever done such a greatly superior job! And if the Homestars rating system permitted it, we would give Hasan in particular a resounding 20+++ out of 10 rating!!