Anderson Window and Door Installation is a certified window and door installation contractor serving Santa Clara and San Mateo Counties. With over 25 years of experience and 225,000+ completed installations, the company specializes in precision window and door replacement, custom solutions, and energy-efficient upgrades. Known for in-house certified installers, owner-supervised projects, and strong attention to detail, they deliver reliable craftsmanship, transparent service, and long-lasting home improvement results.