Expert energy auditors can help you identify the best way to spend your energy improvement dollars. You can find such experts through your state’s energy office, the Residential Energy Services Network, or the U.S. EPA’s growing Home Performance with Energy Star program (see Access).
An energy auditor will examine every room in your home, using tools such as an infrared camera to check for insulation voids inside a wall or a “blower door” test to pinpoint air infiltration. A typical audit can take from two to four hours depending upon the tests performed, and auditors may charge a flat rate or by the hour. Always ask what specific tests they will perform, how they charge for services, what the cost will be, and how the results will be presented to you. An average home might save up to 30% on energy costs if all the auditor’s recommendations are followed.