A lightning protection system is designed to last for the life time of your building or structure. This would remain true unless local government regulations changed or property alterations or additions were made. If any structural alterations or additions are made, the lightning protection system should be checked and updated if required. Harfield are happy to check your current lightning protection system is still satisfactory for your building or structure.
British and European Union Standards recommend lightning protection systems are inspected and tested at fixed intervals, preferably not exceeding a 1 year period.