CertainTeed 2015 Customer TrackRecord Diamond Approval Award
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Cornerstone Roofing, Inc. is so honored to have won CertainTeed Roofing‘s Diamond Approval Award two years in a row! Less than 25 companies in North America have attained the Diamond Status so we are so thankful to our clients for making this possible!
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![](https://cornerstoneroofing.com/wp-content/uploads/2018/04/CertainTeed-Diamond-Approval-Award-2014-2015.jpg)
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