McLellan Contracting is a Window Wise Certified Company. Our installers receive standardized training through SAWDAC (Siding, Aluminum, Window, Door Accredited Contractor) for standardized installation procedures. This ensures that only professional installation techniques are used resulting in a lifetime of carefree performance.

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Our teams take pride not only in their workmanship but their professionalism and the customers overall experience in the renovation process.

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Vertex3 High-Performance Window Technology

• evolv glass outperforms the industry average by 29% in energy efficiency. Triple-pane performance with double-pane glass. significantly exceeds Energy Star standards reducing energy costs.

• Patented EC Tech Coating keeps windows cleaner longer with 99% fewer spots and superior clarity. This means no more getting up on ladders to clean your windows!

• Owens Corning Weather Stripping cuts drafts by up to 24% with a mould resistant seal that does not discolour over time.