Do you know when it is time for a new HVAC system?
If you have constant problems with your heating and cooling then you might need a new HVAC system installed. A good sign of this is when your air conditioner or heating system cannot produce your desired temperature. If your system constantly struggles to reach the temperature of your desire this is a good sign that something is broken. It is wise to have a HVAC contractor to come and take a look at it before you start replacing your system.
Sometimes a HVAC service call can prove to pay off. Many times the contractor can find the problem and come up with a solution to fix it. If the HVAC contractor can fix the problem this will save you tons of money. On the other hand, if the contractor comes across multiple problems then it might be best to go ahead and replace the system.