Do you remember your last HVAC system inspection? If not, you may be stressing your air conditioning system, and will likely need a repair sooner! You may have even noticed your electricity bill is growing larger every month. The simplest thing you can do is to clean and replace the air intake air filters inside of your home. Another maintenance item you can do is clean your outdoor condenser unit. Keeping the coils and fins clean will help the unit to cool your home efficiently. Even with great maintenance, you might have another reason for a high electricity bill: bad duct work. Leaky ducts are hard to find, so hiring a professional is recommended.