Selective Air Systems removed our old oil furnace and installed a new gas furnace, air conditioner and new duct work for over half our home - including our new addition, they also assisted in organizing our conversion to natural gas from oil. The team was always friendly, very polite and made sure to use drop clothes at all times for the floors - even when we only had subfloor! They made sure to tape all the duct joints and took care to make sure our new floor vents were in spots that made sense, both for our system and our furniture. Our new system is working like a charm and we have been enjoying our comfortable house during the humid summer days.