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QSI Windows and Doors - Hamilton

Specializing In
Supplying and installing high performance windows, doors and sunrooms. Founded in 1976 by Terry Bobiak, QSI is one of the Golden Horseshoe�s most reputable window, door and sunroom companies, with sales, administration and installation teams working year round � remarkable given the harsh Southern Ontario winter weather.

Company History
Over the years our products have revolutionized the industry with continuous leading edge technology. From controlled in house employee based installation teams, to knowledgeable customer service representatives, our TEAM is willing to go above and beyond your expectations always striving to give you the best possible renovation experience. QSI's newly renovated 7,500 sq ft head office and showroom facility in Hamilton offers fully operational, full size Windows Door, Sunroom and Patio Awning displays. Customers are invited to experience the quality that is synonymous with our high performance product, installation and people. We are extremely proud of our people and our relationships with all QSI customers, friends and suppliers.

QSI has been a member of SAWDAC since 1994. The recipient of the prestigious �Consumers Choice Award �recognized for business excellence from (2011-2013).

Contact Info


175 Nebo Road
Hamilton, ON
L8W 2E1

Toll Free:1-866-575-8078
Web Site:website
Burlington 905-639-8078

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