PROUDLY CANADIAN COMPANY OWNED & OPERATED IN TORONTO SINCE 1989!
Strategically engineered to turn any unsightly and drafty basement window into an energy saving masterpiece. Throughout Toronto and many cities in Canada, basements can be common, and yet, energy suckers.
One of the best investments you can make is to replace old steel single-pane or broken basement windows with new high-efficiency basement windows. Because of the thicker foundation walls, basement windows are a specialty product, requiring customized fit for exact placement along with larger sill area. Whether for egress, or for added light, new windows can bring a big upgrade to an overlooked basement.
Our replacement window design works for both old steel basement windows and can also be customized to any basement openings with cost conscious prices in mind. Our window installers are experts at basement windows. Now you can turn a basement you hate, into a warm and inviting place to enjoy, with energy efficient window replacement of your basement windows.

Delco offers one of the strongest, most trusted warranties in the industry. It’s lifetime, full coverage—no fine print, fully transferable. Vinyl, sealed glass, hardware, and components are all protected for life. If you sell your home, the warranty stays in place. Every installation is handled by licensed, factory-trained pros who follow CSA guidelines. We inspect and repair any damaged frames before the job begins. With Delco, you get lasting performance, expert care, and total peace of mind.
Project Gallery
Our process begins with a personalized design consultation. Our experts work closely with you to understand your needs and preferences, providing tailored design options that match your home’s style.
After finalizing the design, we take precise measurements of your openings. Our skilled craftsmen then manufacture your doors and windows in our Toronto facility, using high-quality materials and advanced techniques.
Our certified installers handle the installation with care and professionalism, ensuring a perfect fit for optimal performance and aesthetics. We work efficiently, minimizing disruption and leaving your home clean
Our commitment continues after installation with comprehensive support. Whether you need maintenance advice, adjustments, or warranty services, our dedicated team is always ready to assist.
Make your project a reality with convenient financing options*
*Subject to credit approval.
We’ll Come To You!
Quality New Windows & Doors. Competitively Priced!
Christine R.
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