I recently had some issues with unusually high energy bills, unpleasant smells in the house, and cold spots in various rooms. Although the furnace seemed to be running non stop, it couldn’t keep up with demand. When I hired an HVAC contractor for repair, he inspected the system and informed me that the problem was holes in the duct system. These leaks were allowing the heated air to escape before it ever reached the supply vents. He recommended Aeroseal, which is a patented technology that targets leaks from the inside. The process involves pressurized air and polymer adhesive particles which stick to the edges of the leak, gradually build up and complete an effective seal. The HVAc contractor started by plugging the registers in the house with foam. This would then force any air to escape by way of the holes in the ductwork. He performed a pretest on the duct system to determine the extent of the problem, then began the sealing process. He blocked the air conditioning indoor coil, fan and furnace to prevent the sealant particles from entering the inner workings. Non-toxic, UL tested and approved particles and air was injected into the duct system. The air is put under pressure, which keeps the particles moving and sends them out through the numerous holes. The entire procedure was controlled by the computer and provided the ability to watch the results. After completion, the computer provided an analysis and proof of success. There was no smell, mess or damage, and the whole process was handled within a couple of hours.