At Viking Windows, we understand the unique needs of contractors. As a trusted window supplier in Ontario, we offer a wide selection of energy-efficient vinyl windows from KV Custom Windows & Doors, renowned for their durability and performance. Our windows combine exceptional energy efficiency, craftsmanship, and sleek design, ensuring your clients receive the best in both functionality and aesthetics.
We provide competitive, transparent pricing tailored for contractors, along with reliable delivery schedules and expert installation support. Whether you’re working on a new build or a renovation project, our team is here to help streamline the process, giving you access to high-quality products that meet strict building standards. Partner with Viking Windows and deliver premium windows that stand the test of time.
Energy Efficiency & Innovation
Our windows feature advanced sealing technology and “S” class spacers, designed to minimize heat loss and maximize energy efficiency. Whether your clients need better insulation, lower energy bills, or enhanced curb appeal, our windows offer reliable performance and long-lasting value on every project.
Window Styles to Suit Every Build
We offer a variety of window styles to match your home’s aesthetic and functional needs:
Picture Windows – Large, fixed-pane windows that provide unobstructed views and abundant natural light.
Casement Windows – Hinged at the side, providing excellent ventilation and airtight sealing.
Awning Windows – Hinged at the top, allowing fresh air in while keeping rain out.
Slider Windows – Smooth operation with easy side-to-side sliding for a sleek, modern look.
Double Hung Windows – Classic style with two operable sashes for superior airflow control.
Bay & Bow Windows – Expansive, elegant designs that add depth and natural light to your space.


Precision Installation for Contractors
Our windows are designed for seamless installation, ensuring they perform at their best. Proper installation optimizes energy efficiency and prevents drafts or leaks, providing lasting satisfaction for your clients.
Reliable Support – Our team offers support from initial consultation through to installation.
Expert Craftsmanship – Windows built for durability, beauty, and innovation.
Energy Efficiency – Help your clients reduce heating and cooling costs with superior insulation.
Custom Solutions – Tailor window styles and finishes to fit any project specifications.
Competitive Pricing – Clear and transparent quotes to support your budgeting needs.