A home energy audit is a full energy assessment of your home. It involves taking measurements, pictures and information regarding your home and its energy efficiency. After the audit you will receive two documents: an EnerGuide Rating Label for your home and a Homeowner Information Sheet regarding the energy efficiency of your home. The label can be used to advertise your home for selling purposes and for comparing to other homes. The information sheet gives you information about how much energy your home uses in a year and where the energy costs come from. A home energy audit is very useful for understanding the energy efficiency of your home.