I would highly recommend Dmitri and Ian's services. I contacted Heatmaster originally by email and received a detailed response with a reasonable quote within a few hours. Dmitri was very helpful in clarifying what we needed and was able to schedule an appointment to install a new humidifier and address a long-standing issue with my damper within a few days. They worked very efficiently on the day of and mentioned some options to improve efficiency of my furnace but noted the system was still in good shape an didn't push any unnecessary options. Overall was quite happy and would recommend.