There is something to be said about having your ductwork cleaned regularly.
I know that my HVAC technician told us that we only needed to have the ductwork cleaned every couple of years, but we had only been in our home for a year. I was afraid that we were going to need to have our ductwork cleaned and it had only been installed a year ago when our home was built. I couldn’t understand how we were already getting these odors coming from the ductwork. I called the HVAC contractor who had installed our HVAC system and I was telling him about the odors coming from the air vents. He said that sometimes there can be building products that get into the ductwork system when the house is being finished. If there was any moisture and the products were beginning to decay, we could get some off odors. He seemed quite agitated that his technicians may not have cleaned and sanitized the ductwork before signing off on the work. He did say he would send a group of professional HVAC ductwork cleaners to our home and have them clean and sanitize the ductwork for us. It didn’t take very long for the team to arrive or to complete their work. I wasn’t the only one who was surprised to see all of the dirt and debris that came out of the ductwork when they were cleaning. When they were done sanitizing the ductwork, I was amazed how good the air smelled again. I have a feeling that someone is going to be in trouble when the HVAC contractor gets this report.