Duo Building Ltd, London, ON

DUO Building is a trusted construction company serving London, Ontario, with over 45 years of experience in residential and commercial design + build projects. Known for our collaborative approach, we create custom renovations and new builds that reflect each client's unique style, needs, and budget. Our dedicated in-house team handles everything from concept design and transparent cost estimates to full construction and project management. We specialize in home renovations, commercial interiors, additions, and custom builds - all backed by our industry-leading warranty program. At DUO, we believe in building lasting relationships and delivering exceptional craftsmanship. Whether you're remodeling your home or developing a new commercial space, DUO is your one-stop construction partner.