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We have achieved accreditation for our system, which means that our materials processes and quality control is constantly checked to provide the customer with the best quality building material and system.

ISO 9001

SipMark CATG

SIP Mark Scheme, for our structural insulated panels and our total SIP building system. We have been through rigorous testing by C.A.T.G. in order to get the certificates, including checks on all of our structural and technical data and tests on our factory processes.  As part of the ongoing commitment to our SIP Mark Scheme, C.A.T.G. undertake audits of our factory each year where they check all of our quality control procedures. They also audit our design office in Ribble Valley and visit sites to audit erection. The third party accreditation ensures that we are accepted by insurers, many other companies do not have this level of accreditation

ISO 9001 is a certified quality management system (QMS) for organisations who want to prove their ability to consistently provide products and services that meet the needs of their customers and other relevant stakeholders


For a product to be claimed as being FSC certified (through a product label or sales documentation), there must be an unbroken chain of certified organisations covering every change in legal ownership of the product from the certified forest up to the point where the product is finished or sold to retail.

You will need Chain of Custody certification if you intend to do one or more of the following:


In order to provide assurances that wood and wood-based products originate from sustainably managed forests, PEFC promotes Chain of Custody certification.

Chain of Custody certification outlines requirements for tracking certified material from the forest to the final product to ensure that the wood contained in the product or product line originates from certified forests.

PEFC Chain of Custody certification is essential for companies to implement and demonstrate ethical business behaviour, and consumers to make responsible purchasing decisions.