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Trusted by 25,000+ Homeowners in Sarnia with Upgraded Windows & Doors!

St. Clair Windows & Doors is a Canadian owned and running business based in Sarnia, ON. We treat each project with meticulous attention to detail and guarantee our work will exceed your expectations. With over +500 window and door installations, St. Clair Windows & Doors is the company you can trust to get the job done right.

Windows & Doors

Windows

The windows we offer are high-performance, energy-efficient, and noise-blocking. They come in a variety of styles to best suit your needs.

Doors

We offer Fiberglass & Steel Doors – materials that will last a long time while still providing a desirable look and feel. We'll help you pick the door that is perfect for your home.

Series 1000

Introducing our Series 1000 windows, a perfect blend of classic design and modern efficiency. Featuring a traditional look with a substantial 3-1/4″ deep frame, these windows are tailored to meet a wide range of applications. Crafted for both energy efficiency and durability, the Series 1000 is the ideal choice for homeowners who appreciate both style and substance.

Benefits of Our Windows

Lower Energy Bills

North Star's high-performance windows and doors save you money by keeping your home cozy year-round. Featuring energy-saving Low-E glass, they retain heat while letting in maximum light, reducing energy loss. On average, they're twice as efficient as older windows, leading to significant energy bill savings.

Go Green

Harness the sun's natural heating and cooling with North Star's unique glass coatings. They keep your home comfortable in all seasons by reflecting heat, whether from the sun or your furnace. These coatings are nearly invisible, allowing ample light while maximizing energy savings.

Peace & Quiet

Enjoy tranquility at home with North Star's sound-blocking windows. Our advanced Super Spacer® technology and fusion welding process create a strong seal, keeping unwanted noise out. Whether it's your neighbor's activities or construction nearby, our windows provide a serene indoor environment.

E-Z Screen

Cleaning made effortless with our E-Z Screen. Hidden retention system, snag-free edges, and user-friendly design ensure hassle-free maintenance. Push to remove and snugly replace for seamless use.

Nesting Handles

Experience convenience with one-handed operation. Our low-profile nesting folding handles add elegance and functionality to your windows. Multiple hardware finish options available.

Match your Décor

Customize your windows to match your unique style. Choose from custom shapes, colors, and grilles to enhance your home's appearance inside and out. Seven exterior colors and two-tone oak finishes for interior trim available.

Glass Options

Optimize energy efficiency with the right glass choice. Explore our range of glass options to enhance your windows and doors' performance.

Energy Star

Join the international standard for energy efficiency. North Star Windows proudly support the Energy Star program, helping you save energy and money while reducing your environmental footprint.

See Our Latest Installations

Our Customer Reviews

Excellent
Based on 48 reviews
Lisa Chan
Lisa Chan
2023-05-10
My parents had all the windows and doors installed in their home and they look great and worth it! The experience from beginning to end was exceptional. From the start, Don and the girls in the office were very accommodating and helpful, making it easy for me to work with them and my parents to make the applicable decisions. Don and his staff did not make us feel uncomfortable or pressured to commit to anything like so many companies do in order to get business. The group of guys who did the installation were awesome! They were professional, friendly, efficient, fast and did a great job. They really knew what they were doing and I can't believe they installed everything in less than 3 full days. They worked from the time they arrived to closing time. The pricing is very reasonable and there are many selections and styles. In my opinion "customer satisfaction and honesty" is what this company values and is about. I highly recommend them to others. Thank you to everyone at St Clair windows and doors.
Steve Beasley
Steve Beasley
2023-04-25
I have just had a large livingroom window with opening end panels installed in my 1950's bungalow and could not be more pleased. From start to finish, site inspection, quotation, administration, and installation were completely professional, friendly, and highly skilled. The office team kept me up to date during the manufacturing process, and the installation team was amazing. I can absolutely recommend them to anyone looking for good value and a quality installation.
Jordon Rowe
Jordon Rowe
2023-02-09
Top quality product, best installation & personalized service. Locally owned & operated.
Don Monaghan
Don Monaghan
2022-12-14
Great crew!! Good quality service and work, cleaned up very well after themselves
Mark Bouffard
Mark Bouffard
2022-10-19
Great job from these guys! From start to finish they were professional in every way! Looked like my door replacement was a nightmare, I was assured that I was going to love and they were right.
Anna Couture
Anna Couture
2022-05-14
I had St Clair windows and doors put windows and a new door in. Johnny Rowe and his team did a fantastic job. You get the best service from all including the office staff. Totally recommend them for all your needs them.
David Penner
David Penner
2022-04-28
We just had all new windows and doors installed with St. Clair Windows and Doors. The entire process was easy and fantastic. The product, and the install is all top quality and going above and beyond for customer service and satisfaction. Thank you for the excellent job well done
Mike Barnes
Mike Barnes
2022-04-07
We got two large windows replaced and a patio door very happy with the work the windows look great recommend this company to anyone looking for new windows or doors

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