Mark Frankel is a Senior Editor at Bergson & Eaton, specializing in doors, windows, and residential home improvement. With over 10 years of experience in the field, he focuses on helping homeowners understand product materials, installation methods, energy efficiency, maintenance, and replacement options. His editorial approach combines practical research with clear, accessible guidance to help readers make informed decisions for their homes. His professional development can be complemented by relevant coursework in construction management, building science, or residential energy efficiency through recognized U.S. institutions. Mark is committed to providing well-researched, reliable information that readers can trust.