50,000 + window and door installations.

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 50,000 window and door installations, St. Clair Windows & Doors is the company you can trust to get the job done right.

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 both Fiberglass and Steel doors – materials we know will last a long time while still providing a desirable aesthetic for your space. We can help you decide which type of door is best for you.