When your air conditioner or heat pump are over ten years old. When repairs are becoming more frequent, and your energy bills are rising. If some room in the house feels warmer or colder than others, it could be a sign of duct problems, improper insulation, or equipment not working right. If the ductwork is not airtight, dust particles from the attic or crawl space could get in the house.
Is the air conditioning system a bit loud? this could be a sign that it’s time for a new one. Does the house seem too dry in winter and too humid in summer? This could be the system is not working right, or leaky ductwork.

