servicebrands | Mar 3, 2014. The simple answer to this question is that a home energy audit is an inspection that can be done to your home to assess the amount of energy your home uses. As a homeowner, you can take that information to make your home more efficient, use less energy, and save you money! During a home energy audit, your professional handyman will have a variety of techniques and tools to assess your home and give specific recommendations on how to improve its efficiency. A few items to have ready for your audit include: Problems within your home like a drafty room or an old furnace.