Sterling Locks Limited guarantee any product bearing the 10yr guarantee logo for a period of 10 years from the date of purchase. In the event that the product fails owing to faults in the manufacturing process or defects in material content, then Sterling will replace the product free of charge. This guarantee does not, however, extend to misuse when the product has either been abused or used for purposes other than those for which it was designed. This guarantee does not affect your statutory rights.