Sem's Duct Cleaning

I was very impressed with Sem's Technician Michael and his associate.
Michael provided information on how I can make my system work better for the house, suggested how best to use specific furnace filters in different seasons and he laid out the work from start to finish. He put things back as they were and cleaned up after they were done. I am very happy with the service I received from Sem's and will most definitely call the company again. Thank you so much!