Kerry Flanagan is a building materials & product review expert with more than 10 years of experience evaluating doors, windows, hardware, and residential building products. She specializes in comparing product performance, durability, energy efficiency, and long-term value to help homeowners and professionals make informed decisions. Kerry has completed professional studies through UCLA Extension, strengthening her knowledge of construction materials, sustainable building practices, and home improvement. Through her work, she delivers clear, research-backed reviews, practical buying advice, and reliable insights that help readers choose quality products with confidence. Every article she contributes is guided by accuracy, transparency, and a commitment to trustworthy information.