Air ducts don't last forever
I am sure you have heard that it is good practice to replace your air filters for your HVAC system constantly, and cheap air filters should be replaced at least every 90 days or sooner.
More effective filters like HEPA filters may only need to be replaced once or twice a year.
However, did you know that it may eventually become necessary to replace your air ducts entirely? Air ducts should normally be able to last as long as the rest of the HVAC system. However, like the rest of the HVAC system components, air duct seals, joints, as well as seams will eventually deteriorate. When that happens, the loss of heating as well as cooling effectiveness as well as energy efficiency will compound over time. When you’re racking your brain trying to figure out why the airflow is so bad in your HVAC system, have your air ducts inspected if they are quite old, because that might be the culprit. A distinct lack of cooling ability may also be an indicator that your air ducts need to be replaced. As you can imagine, if your air ducts are punctured, they become far less efficient. Sporadically, it is not so much a complication with the structural Integrity of the air ducts as it is the fact that there might be mold spores growing inside. Who the heck wants to breathe that stuff in. I hope I’ve convinced you to get your air ducts inspected. An HVAC professional will be able to determine whether or not they can be repaired or if they need to be outright replaced.