
We are dedicated to producing safe, quality products which continue to meet and satisfy the needs and requirements of our customers and interested parties.
Our Entropy system is a purpose specific database, which enables us to record and monitor all aspects of Quality Management; this includes objectives and targets, audit reporting, document control and training records.
ISO 9000 is the the world's most established Quality Management System framework. Tetrosyl Ltd has been continuously certified to BS5750 and ISO 9001: 2000 since 1993 and gained certification to ISO 9001: 2008 in 2010.
The BRC Global Standard- Consumer Products was created to establish a standard for due diligence and supplier approval for the consumer products market ensuring the supply of safe and legal products to consumers. Tetrosyl has been certified to the BRC Standard for Consumer Products since 2004.
External audits are carried out by SGS UK Limited who are the world' leading inspection, verification, testing and certification company and are recognised as the global benchmark.








"This is a quick letter to say how pleased I was with your wonder wheels product ...... My car is eight years old and I have the original alloys, so you can imagine the state of them ...... so it was a big job (all so I thought!) but using your Wonder Wheels made the big job, a small job with a great turn out in the end. Thank you and I'm sure I will use your products all over again."

























