PROUDLY CANADIAN COMPANY OWNED & OPERATED IN TORONTO SINCE 1989!
Double Slider Windows from Delco are a popular replacement window choice for Toronto homes. Both sashes slide smoothly for flexible ventilation, and each sash tilts in for fast, safe cleaning from inside. It’s a practical style that fits wide openings while keeping the look clean, modern, and easy to maintain.

Delco slider windows are a practical, modern choice for Toronto replacement windows; especially when you want smooth operation, dependable ventilation, and a clean, wide view. We offer both single slider and double slider styles, so you can choose the layout that matches your room, opening size, and airflow needs.
Slider windows remain popular with homeowners and designers. They’re easy to use, work well in tighter spaces (no outward swing), and help modernize the look of a home. When paired with the right glass package, they can also support better year-round indoor comfort in Toronto’s changing seasons.
Every home is different, so is the right installation approach. During your free in-home consultation, our specialist will check the condition of your existing frame and recommend the best path for performance and longevity.
Common installation types include:
Pricing depends on size, glass package, colour, hardware, and the installation method; so we quote based on your opening and your goals.
Below are the popular configuration options:
Delco slider windows are built with a high-quality uPVC compound engineered for durability and low maintenance. Vinyl windows don’t require painting, resist moisture, and keep their appearance with simple cleaning.

Our uPVC is designed to be strong, stable, and dependable over time; supporting both energy efficiency and a solid window structure.
Multiple internal air chambers help improve insulation and reduce outside noise. This layered construction supports better thermal performance and comfort through winter and summer.
Fusion-welded frame and sash corners create a clean, seamless look and help maintain a tight seal. They support strong resistance to air and water leakage.

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.
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Quality New Windows & Doors. Competitively Priced!
Christine R.
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