Fenestration Review

UL announces acquisition of CLEB

May 11, 2017  By UL

May 11, 2017 – UL is expanding its service offerings further into the Building Envelope and Building Sciences market. Today, UL announces the acquisition of CLEB, the leading Canadian Building Science and Building Envelope service provider. CLEB, a Montreal-based company, is a privately owned business. CLEB provides a wide range of building science services, including building envelope testing services, building forensic services, and field testing and building system commissioning services for architects, building owners, manufacturers and others in the building construction markets across North America. The acquisition strengthens UL’s expertise in the field of building science services and building envelope testing, and certification services, and offers manufacturing clients greater access to global markets.

CLEB’s unique laboratory facilities are among the largest in Canada and are accredited by the major North American accreditation organizations. Over the last thirty years, CLEB has contributed to many high-caliber projects throughout Eastern Canada and the Northeastern United States, as well as projects beyond North America.

“UL and CLEB have a shared mission and complementary businesses. We are relied upon by building construction communities for the services and knowledge that they need to enhance public safety, meet regulatory demands, protect brand value and successfully access global markets,” said Vice President and General Manager of UL Building and Life Safety Technologies Division Chris Hasbrook. “Working as one, UL and CLEB will continue to grow the vision that has brought us together, and grow our position as the global leader in the field of building science.’’

CLEB’s employees will join and strengthen UL’s industry professionals and recently inaugurated building envelope testing facility located in Northbrook, IL. Effective immediately, the company will operate as CLEB, a UL Company. The group’s Building Science thought leadership and global Centers of Excellence will be based out of the Montreal and Northbrook headquarters.


“We are excited by this opportunity to join forces with UL and provide best-in-class services to the building envelope community,” said Mario Gonçalves, former president of CLEB and new principal and global business leader – Building Science Technologies for CLEB. “Our group’s shared reputation for delivering industry-leading services and in-depth industry knowledge will continue to strengthen our position as leaders in the field of building science services and building envelope  testing and certification. Combining with UL will allow us to significantly accelerate our growth and access to global markets, in addition to providing our clients with a broader range of complementary services and expertise. Clients can rest assured that customer service and technical quality will remain our top priorities and that our newly integrated capabilities will deliver even more value.’’

The transaction closed on May 5, 2017. Terms of the acquisition were not disclosed.

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