Welcome to Custom Window Design in Markham, where our specialty windows collection brings an unparalleled combination of style and functionality to your home. Our range includes uniquely shaped windows that add architectural interest, triple sliders that offer panoramic views and effortless operation, and designer glass options that bring a touch of elegance to any room. Each category is meticulously crafted with precision and attention to detail, guaranteeing that whatever you’re looking for—an eye-catching statement piece or a practical solution—you’ll discover windows that not only meet but surpass your expectations. Immerse yourself in our exceptional world of specialty windows and revolutionize the way you perceive and enjoy your home.

Specialty Shaped Windows

Need a special window that doesn’t conform to the usual rectangular shape, or for custom openings? Custom Window Designs gives you maximum versatility with our customized window shapes. Use them alone, or with any of our replacement or new construction windows to add flair to your home ideas!

  1. New elegant contour profile.
  2. Highest quality strong 3 1/4″ fusion-welded frames and sashes.
  3. 13/16 overall sealed units for superb efficiency.
  4. Snap-in glazing inside the house for security.
  5. Triple-sealed sashes, fin seal, pile and extruded double bulb.
  6. Full-size fibreglass screen top to bottom ventilation.
Triple Slider Windows

The triple slider is often used when a sliding window is needed, but the opening is wider than 72 inches. It is also more affordable in price compared to casement fixed windows and casement combo windows. Features include two end-vent sashes that tilt inwards for easy cleaning, and a center pane of glass for an undisturbed outside view.

  1. Custom made for larger openings.
  2. Fixed in the middle, with two end sliders.
  3. New elegant contour profile.
  4. 3 1/4″ fusion-welded frame and sash.
  5. 3/4 overall sealed units for thermal efficiency.
  6. Tilt-in sash for easy cleaning from inside.
  7. Snap-in glazing inside, for easy glass replacement.
  8. Fibreglass screen for ventilation.
  9. 100% pure high quality PVC.
Designer Glass Windows

Custom Window Designs is adept at building stunning custom creations to order. You choose the the glass, the shape, the grilles, and the design. We’ll make it happen. Contact us for a quote or to discuss your dream window.

  1. New elegant contour profile.
  2. Highest quality strong 3 1/4″ fusion-welded frames and sashes.
  3. 13/16 overall sealed units for superb efficiency.
  4. Snap-in glazing inside the house for security.
  5. High-quality hardware.
  6. Single-point lock.
  7. Triple-sealed sashes, fin seal, pile and extruded double bulb.
  8. Full-size fibreglass screen top to bottom ventilation.

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Contact us now for a complimentary, no-obligation quote on our custom window and door solutions!

Why choose Custom Window Designs for your Specialty Windows in Markham?

Premium Vinyl

  • Extruded from the highest quality, our premium lead-free PVC compounds are formulated for resistance to UV, fading, and cracking

  • Non-metal Super Spacer minimizes condensation

  • Multi-Chambered sashes provide thermal resistance

  • Optional Brickmould to add elegance to your windows

Fusion Welding

  • All frames and sashes are precisely welded for increased strength and durability

  • Watertight and Airtight: our non-degradable sealants and reinforced joints prevent any sealing problems

Custom Window Designs Advantage

  • 50 Years Experience: Leverage our half-century legacy in the industry, where seasoned expertise meets unparalleled craftsmanship in every window and door project

  • Manufacture & Install: Benefit from our end-to-end service as we not only manufacture but also expertly install ensuring quality control and lower costs

  • Financing Available: Ease your investment with our flexible financing options, designed to make our premium window and door solutions accessible for every budget

  • Lifetime Warranty: Rest easy with our lifetime warranty, offering you enduring security and trust in the lasting quality and performance of our products

Explore Other Window Styles

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