Durabuilt CSA Certified Windows


CSA has become the international standard of quality and when you are looking at a significant investment like windows, it is an important symbol to watch for. The operational performance ratings for certified products are based on CSA International's A440-00 Window Standards that measure water, air, wind tightness and other important operating factors.



CSA Ratings Scale Overview 

For more information visit CSA International’s website at www.csa-international.org


Durabuilt CSA NAFS Product Ratings

* CSA comment for both 920 and 960 series windows: “Operable specimen meets fixed level’s air leakage rate of less than 0.25 (m3/hr) m-1.”

The above performance data is a guideline only and subject to change. Visit http://oee.nrcan.gc.ca for the most up-to-date performance information.


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Consumers Choice Top 100 Window & Door Award winner manufacturer and supplier of Canadian made energy efficient windows and doors custom measured and built in Alberta. CSA Certified Manufacturers, Energy Star Partner, and Built Green Members with design services in Edmonton, Calgary, Lethbridge, Saskatoon, Winnipeg, and Regina. Quality ratings, luxury treatments, styles, high efficiency, service and the best product value prices makes us the top suppliers among home builders, contractors, architects and designers in Western Canada for house renovation & repair replacement, and new building construction.