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Certification and Accreditation

Case studies, literature or accreditation and certification.

Feel free to browse the various documents, and download any that are relevant to your project.


Health & Safety Statement
ISO9001 Certificate
Acclaim Accreditation

Certificate of Conformity

Metal Web Joists CE
Roof Trusses UKCA


Environmental & Sustainability Policy
Supply Chain Sustainability School Badge
Supply Chain Sustainability School Crendon Case Study
PEFC Policy Statement
PEFC Certificate - Front
PEFC Certificate - Back

Life Cycle Assessments

Metsa Wood Finnjoist - Environmental Declaration
Timber Frame - Closed Panel System
Trussed Rafters
Planed Softwood
Glulam Laminated Timber

Professional Competencies

TRA Certificate
Quality Policy
Professional Indemnity Insurance
SMAS Contractor
CQMS Safety Scheme Certificate
CHAS Certificate 2022
Constructionline Gold Member Certification
Constructionline Silver Member Certification
Constructionline Bronze Member Certification
Social Value Certification
Proof of Liability EL/PL Insurance


Modern Slavery Policy
Gender Pay Gap Reporting
Crendon Logo