Air ducts do not last forever
I am sure you have heard that it is fine practice to substitute your air filters for your Heating and A/C system properly, then cheap air filters should be substituted at least every 90 mornings or sooner.
More effective filters like HEPA filters may only need to be substituted once or twice a year. However, did you know that it may eventually become necessary to substitute your air ducts entirely? Air ducts should normally be able to last as long as the rest of the Heating and A/C system. However, like the rest of the Heating and A/C system components, air duct seals, joints, and seams will eventually deteriorate. When that happens, the loss of heating and cooling effectiveness and energy efficiency will compound over time. When you are racking your brain trying to figure out why the airflow is so terrible in your Heating and A/C system, have your air ducts checked 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 substituted. As you can imagine, if your air ducts are punctured, they become far less efficient! Periodically, it is not so much a concern 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 checked. An Heating and A/C worker will be able to determine whether or not they can be repaired or if they need to be outright substituted.