OPT Windows Ltd.
Premium Aluminum Windows and Doors in Toronto
OPT Windows specializes in premium aluminum windows and doors in Toronto, Markham, and across the GTA. We design, manufacture, and install thermally-broken aluminum windows, security doors, porch enclosures, and sliding doors built for Canadian living.
PRODUCT
Thermally-Broken Windows
Our premium thermally-broken aluminum windows are designed for Canadian weather and built to improve energy efficiency, comfort, and curb appeal. Available in casement, awning, tilt and turn, and custom shapes, our windows feature slim frames, larger glass areas, and exceptional durability. OPT Windows provides custom aluminum windows and professional installation services for homeowners across Toronto, Markham, and the GTA.
PRODUCT
Porch Enclosures
Transform your front entrance with a custom aluminum porch enclosure designed for security, comfort, and year-round protection. Our porch enclosures help reduce cold drafts, create additional storage space, and enhance your home’s appearance while adding an extra layer of security. Every enclosure is custom-manufactured and professionally installed by OPT Windows for homes throughout Toronto, Markham, and the GTA.
PRODUCT
Sliding Doors
Our premium thermally-broken aluminum sliding doors are engineered for modern Canadian homes. Featuring large glass panels, smooth operation, and excellent insulation performance, our lift and slide systems maximize natural light while improving comfort and energy efficiency. OPT Windows designs, manufactures, and installs custom aluminum sliding doors for homeowners across Toronto, Markham, and the GTA.
PRODUCT
Security Doors
Protect your home without sacrificing style. Our premium security doors feature heavy-duty aluminum frames, stainless steel security mesh, and multi-point locking systems for enhanced security and ventilation. Designed for Canadian homes, our security doors provide insect protection, improved airflow, and a modern appearance. OPT Windows supplies and installs custom security doors throughout Toronto, Markham, and the GTA.
PRODUCT
Entry Doors
Create a lasting first impression with our premium aluminum entry doors. Designed for security, durability, and energy efficiency, our custom entry doors are available in various styles, glass options, and finishes to complement modern and traditional homes. Every door is professionally manufactured and installed by OPT Windows, proudly serving homeowners across Toronto, Markham, and the GTA.
Why Choose
OPT Windows?
✔ Aluminum Windows and Doors in Toronto
✔ Premium Thermally-Broken Aluminum Systems
✔ Made in Ontario for Canadian Weather
✔ Factory Direct Manufacturing
✔ Design • Manufacture • Installation by One Team
✔ Custom Built for Every Home
✔ Professional Installation & After-Sales Support
✔ Modern Design, Superior Comfort & Enhanced Security
