Since the air ducts and furnace were just cleaned a few hours ago I have no way of judging how it will effect my heating and cooling systems, but based on the photos Jason showed me, there should be great improvement. Jason and Eric arrived on time, they were very pleasant to deal with and they took great care to not have the equipment mark up the floors and walls. They explained everything to me and did not pressure me to add other services. They checked the dryer vent flow and told me it was great so I did not need to have dryer duct cleaned.