Guardians of Family Comfort

Sentry Windows & Doors is a local, family-owned and -operated home improvement company serving homeowners throughout Southwestern Ontario. Built on a culture of excellence and integrity, our company is committed to providing our customers with durable, high-performing products, expert installation, and friendly customer care. When you partner with Sentry, you can expect a home improvement experience that is truly one of a kind. We know that no two homes are alike — nor are any two homeowners — which is why we take the time to get to know you and work with you to evaluate your home and find the