Pay Absolutely Nothing until 2021!
Sentry Windows & Doors
Your Guardians of Family Comfort

About Our Company

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.

From Our Family to Yours

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 best solutions to your specific needs. And, with our comprehensive warranty protection, we’ll be looking out for you and your home long after your project is completed.

Sentry Windows & Doors – Your Guardians of Family Comfort.

What Sets Us Apart
See the Sentry Difference for Yourself
Made in Canada, Made to Last

In order to provide our customers with products that are truly superior, we manufacture our own vinyl replacement windows right here in Canada using 100 percent virgin PVC. Designed specifically for the Ontario climate and built for four-season performance, our windows will enhance the beauty, comfort, and energy efficiency of your home for many years to come.

Unrivaled Warranty Protection

When it comes to protecting your investment, our no-nonsense, no-fine-print, lifetime warranty is the best you’ll find in the business, hands down. This comprehensive warranty covers both materials and labour, and can be transferred to a new owner within five years of installation, affording you the ultimate peace of mind.

Quality Customer Care

When you partner with Sentry Windows & Doors, you can expect exceptional customer service from initial consultation through final clean-up. Whether you need product details about our windows and doors or information about our ironclad warranty, you can turn with confidence to the team at Sentry for professional service with a personal touch.

What Our Customers Are Saying
Take a look at some of our reviews from satisfied homeowners
Liked your presentation as compared to others. Willing to work with us on our remodel.
From Ken in sales to Isaac & Aaron the installers we had a great all around experience!
Salesman was very efficient, explained everything clearly and simply. I didn't feel pressured at all.
Barth W
Excellent work in all regards, would definitely recommend!!
Very nice experience of dealing with Sentry Windows. Highly recommended.
The new slider door is simply perfect. Thank you Sentry, we would never hesitate to recommend you!
4.3 Rating
4.8 Rating
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