To be optimal and energy-efficient, doors and windows must be installed properly. That's why Lorendo has its certified installation teams trained to our rigorous installation standards. Our Lorendo installation service includes on-site measurement by a technician, installation of products, wool and/or urethane insulation, external weather seals, interior door jambs installation (in-store selection) as well as leftover pick-up. In addition, our installation come with a 5-year warranty . Please see details in-store or in the Warranty section of our website. Ask your sales advisor if installation service is available in your area.