The intervals
Rented properties (incl. HMOs): every 5 years — mandatory under the Electrical Safety Standards 2020.
Owner-occupier homes: every 10 years recommended, or on sale/purchase.
Commercial premises (offices, retail): every 5 years.
Industrial sites, leisure with pools, public buildings: every 3 years.
Caravan parks, marinas, swimming-pool installations: every year.
When earlier renewal is needed
Change of occupancy in a rental property (recommended at every tenancy change for HMOs).
After major alterations, rewires, or fuse-board upgrades.
After fire or water damage.
After any insurance claim involving electrical components.
When a previous EICR returns "unsatisfactory" — the next test is sooner.
Author byline
James Whitfield, Director & Qualifying Supervisor
NICEIC Approved Qualifying Supervisor, JIB Gold Card Electrician, 10+ years industry experience. Personally reviews every certificate and article published under Electrician London.
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