I was in the basement a couple days ago and I could hear the furnace running and a small sound that I didn’t recognize.
I realized I had a small leak of air coming from the ductwork. I went upstairs and grabbed my duct tape and went to work. I wrapped the duct tape around the pipe several times, but it didn’t do the job I thought it should. I tried one more patch, but I could still hear the leaking of air. I didn’t want to call the HVAC company for a small leak, but I really didn’t have a lot of choice in the matter. I even made a call to the home center, but they told me it would be best to have a professional come in and use aeroseal which would take care of even the smallest of air leaks. They young man told me that I could lose up to 40% of my heating and air conditioning into the air even before it reached my living area, if my holes and cracks were throughout the system. The HVAC company sent a young HVAC technician to my home. She sealed all of the air vents off, to prevent any air from getting into the ductwork. She used the aeroseal which she said would go throughout the system, while trying to escape through the tiny holes, cracks and even holes that were up to one inch in diameter. There was no mess or even dust from the procedure. The sealing of my ductwork was done quickly and I was glad to know that I wouldn’t be unnecessarily losing heating or air conditioning.