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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.

Please note, failure to select the correct materials or products we supply (“the Products”) may result in damage to plant, equipment or property. In some instances, it may cause death or personal injury. We are not designers and do not give advice about design related matters concerning the Products. We can help and assist with the technical specifications for the Products. In specific applications, particularly where critical conditions exist, we will try to assist you within the limitations of the services that we offer. All information supplied by us is intended as technical co-operation outlining the specifications of the different Products which we supply. To the extent permitted in law, no warranty is given in respect of any information supplied by us. The customer must satisfy themselves as to the suitability of the Products for their intended application and use. The correct fitting of Products is the responsibility of the customer. Your statutory rights remain unaffected. Save in respect of death, personal injury or fraud, our entire liability to you, however arising from the supply of Products shall be limited to the £10M indemnity amount provided by our insurers.

William Johnston Accreditation