From the moment I walked into their showroom/warehouse, Cosmopolitan Mechanical Services had gone above and beyond all of my expectations. I was replacing just about my entire unit in my furnace room including the humidifier, a/c/ furnace and air purification system in my home. The staff were very patient and fully explained all of the various options/price-points available, and walked me through every detail of the process. The staff created an atmosphere that was incredibly casual & comfortable, yet professional. Their video online had also displayed a create professional layout ensuring me that I have chose the right company. I can be very detailed oriented, so I ask a LOT of questions. Khurram was always happy to help – friendly, knowledgeable, and helpful. They never made me feel like any of my concerns were silly and bothersome. One of the many wonderful things about working with Cosmopolitan Mechanical was that they were able to save alot of my time by talking over the phone or via email. I was grateful that I did not need to come into their office to schedule appointments or discuss concerns. This was incredibly convenient & fit easily into my schedule. All of the installers needed for this project were polite and incredibly skilled. For the few instances where they needed to ask me questions during installations, I found their questions to be very thoughtful & they always allowed me to make an informed decision about what would work/look best. My new Lennox XC17 system is working out great and i couldn't be happier. I would definitely recommend such services.