Years Ahead Of The Competition" Millennium Exteriors is a fully Licensed, Insured and Bonded Family owned exterior construction company servicing the entire state of maryland. We pride ourselves on excellent customer service, providing the highest quality of materials and the expertise of our installers. Since 1999 we have completed thousands of exterior construction projects. From the simplest to the most complex. We are a "True" exterior company offering services ranging from a new roof to a new fence. If you have an exterior project Millennium Exteriors has it covered.