I am always looking for ways to reduce the cost of heating and cooling. I’ve figured out that temperature control adds up to approximately fifty percent of the household energy usage. About a year ago, I read an article that provided a bunch of energy saving recommendations. According to that article, the majority of residential ductwork allows up to 30% of heated and cooled air to escape through gaps at the seams, poor installation and holes. I Googled to learn the warning signs of leaky ductwork and realized I was living with all of them. It said that flaws in the ductwork can be responsible for inconsistent temperature from one room to another. I’ve noticed that the kitchen often feels overheated while the living room is downright chilly. There is one bedroom upstairs that is always too warm. Once I started paying attention, the especially long run times of the furnace and air conditioner and gradually increasing energy bills had me concerned. Plus, there are issues with musty smells and an excessive amount of dust circulating in the air. I then began looking for a local HVAC contractor that offers duct sealing. Some companies provide manual sealing. They need to locate each hole or crack and physically patch it. I found a contractor that is licensed to provide Aeroseal ductwork sealing. This innovative process targets imperfections in the ductwork from the inside. It takes several hours to complete but causes no mess, damage or odors. It is guaranteed for ten years. The HVAC contractor first blocked off the supply and return registers. He then supplied pressurized air into the ductwork. The air was carrying adhesive polymer particles. As the air leaked from holes and gaps, those particles clung to the edges and steadily built up to form an airtight seal. The entire service was guided by a computer program that then verified the results.