Living in exposed suburban neighborhoods means wind resistance and perimeter sealing should be your top priorities. A property manager friend dealing with rentals in the area shared a link to Top exterior doors Mississauga — fall install. Following that lead helped us choose an insulated fiberglass slab fitted with dual weatherstripping and an adjustable heavy-duty threshold. It completely sealed off the cold drafts coming off the driveway and cut our heating losses through the entrance area right away.