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British Standards Institute (BSI)
William Johnston & Company Limited has BS EN ISO 9001:2015 certification and maintains ongoing quality assurance checks throughout the manufacturing process. Our customers know with William Johnston & Company Limited that they can have complete confidence in the quality of the product. Full traceability can be provided and we are happy to work with our customers quality departments in ensuring their requirements are adhered to.

 BSI Certificate of Registration >

We are founding members of the UK Gasket & Sealing Association and uphold the values and codes of practice the Association demands.

The Pipeline Industries Guild (PIG)
The PIG represents the pipeline industry and infrastructure sector in the UK and worldwide and William Johnston & Company Limited are members of the Scottish Branch.

Contact William Johnston & Company Limited

For more information about our Gasket products and services that are available world wide, contact us on +44 (0)141 620 1666, Email us or simply complete our online Enquiry Form.

Failure to select the correct materials or products can result in damage to plant and equipment and personal injury. In specific applications, particularly where critical conditions exist, we suggest you contact us and we will consider with you the most suitable material or product. However, information supplied by William Johnston & Company Limited is intended only as technical co-operation and as a guide to the various uses of different products. No warranty is given in respect of information or recommendations by William Johnston & Company Limited which are only given for guidance and without any guarantee. The customer must satisfy themselves on the suitability of the material or product for the intended purpose. The correct fitting of products is the responsibility of the customer.

William Johnston Accreditation