Efficiency Upgrade of Air Conditioner Do you run as easily as you did 10 years ago? Neither does your air conditioner. A new air con runs more efficiently. In fact, a new unit is nearly 30% cheaper to run than your old unit. We’ll get your air conditioning into shape. Ducted system (for large homes) from $7500 Split system (for large rooms) from $2200 Key Benefits to Upgrading Reduced running costs Higher efficiency Quieter operation Reduced maintenance