Premium Windows & Doors for the Kootenays

We supply and install a full range of high-efficiency vinyl, fiberglass, and custom windows engineered for the Kootenays’ demanding mountain climate. Our Low-E and argon-filled glass options are specifically designed to lower your energy bills while keeping your home comfortable, whether you’re facing the deep winter snows of Nelson and Revelstoke or the summer heat in Cranbrook and Castlegar. From the Slocan Valley to the Rocky Mountains, we provide the rugged thermal protection your home deserves.

From secure, insulated front doors to high-performance sliding patio doors, we provide professional installation built for the Kootenays’ rugged environment. Our doors feature advanced weather-stripping and thermal breaks to ensure a perfect fit that seals out the mountain elements; from the heavy moisture of the West Kootenays in Nelson to the biting alpine winds of Cranbrook and Fernie. Enhance your home’s curb appeal while ensuring year-round durability in every Trail, Rossland, or Creston project.

For new residential and multi-family developments across the Kootenay region, we offer fast turnarounds and certified professional installations. We partner with local builders in Castlegar, Cranbrook, and Nelson to provide high-volume window and door solutions that meet modern BC Energy Step Code requirements. From mountain-side subdivisions to valley-floor developments, Nagy Bros ensures every new build in the East and West Kootenays is equipped with the efficiency and durability required for our region’s growing communities.