A residential energy efficiency program’s success is dependent on the quality of work that contractors conduct in customers’ homes. Indeed, an in-depth examination of selected program strategies found that effective quality assurance and quality control programs provided a foundation for quality...

Programs found that encouraging word of mouth outreach by asking satisfied customers to promote their program experience to peers helped attract more homeowners who completed energy upgrades. Referrals from neighbors and friends who are happy with their energy improvements can provide a good source...