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Mark J.
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Keystone was founded as a National Fenestration Rating Council (NFRC) licensed Inspection Agency in 1998 by Former President, Marcia Falke, building on her more than 25 years experience in fenestration testing & certification. Since then, Keystone has added numerous certification, inspection and quality assurance programs focused on energy efficiency and structural quality. Our programs are utilized in a wide variety of product categories ranging from building products to appliances
Licensed inspection agency by the national fenestration rating council (nfrc),accreditation by the american national standards institute,recognized certification body for the energy star® program,and accreditation by standards council of canada (scc)
Keystone certifications inc operates in the Wholesale building materials industry.
Keystone certifications inc's revenue is 11m - 100m
Keystone certifications inc has 11 - 50 employees.
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