Something to Think About It’s best to start your efforts to improve home energy efficiency with a home energy audit by a certified professional. You will find how much energy your home consumes and wastes, how you can best conserve energy, where the health and safety concerns in your house are, and estimate how long it will take you to solve the major issues. We have found out the hard way that a house is an interconnected ecosystem, and sometimes a complex one. Learn what to take on first. You may well find out that you can keep your old windows and just seal up around the edges. You’ll very likely come away with some attic and basement projects. Then again, you might find out you need a new roof or a new furnace. Peace of mind has unlimited value.