If your HVAC equipment is more than 10 years old or it is not heating or cooling your house as you would like, have it looked at by an a HVAC technician. If it turns out that it is not performing efficiently or needs upgrading you should really consider replacing it with a unit that is ENERGY STAR qualified. Replacing your old heating and cooling equipment with ENERGY STAR qualified equipment can actually cut your annual energy bill by about $200. You can also receive up to $1500 in rebates for installing a new AC and or Furnace. Call A 24 hour air conditioning repair Denver technecian today.