Tonkin Materials Testing Limited is a UKAS accredited testing laboratory offering its clients a professional and personal service sampling and testing construction materials both on site and in our laboratory based in Exmouth, Devon. Although our main work is usually within the South West, we often provide technical support, sampling and site testing for clients on sites throughout the UK. We believe in providing a personal and “hands on” service for our clients to ensure that they benefit from our extensive experience in the industry.