Welcome to The Home Improvement Research Institute (HIRI) A membership based, independent, not-for-profit organization of manufacturers, retailers, wholesalers and allied organizations in the home improvement industry. Its mission is to be recognized as the primary authority for effective, useful information about home improvement products and services in North America. The membership of HIRI currently represents over 90 of the leading firms in the industry... More... NEW REPORT JUST RELEASED Th ...