Gas Safety Certificate Rules UK 2026 (CP12 + Deadlines)
Landlord gas safety certificate rules in the UK, annual checks, CP12 records, 28-day tenant copies, new appliances and enforcement.
Gas Safety · 3 guides
Gas safety is the compliance item with the harshest penalties: unlimited fines, possible imprisonment and a broken Section 8 claim. These guides cover the annual check, the CP12 record, what counts as a valid engineer, the 28-day tenant copy rule and what to do when a check is overdue.
Other topics
Landlord gas safety certificate rules in the UK, annual checks, CP12 records, 28-day tenant copies, new appliances and enforcement.
Annual CP12 by a Gas Safe engineer is mandatory on every UK rental. Tenant copy in 28 days, 12-month renewal window, and penalties from £6,000 (HSE FFI invoice) up to an unlimited fine plus 6 months in prison for serious breaches.
How much does a landlord Gas Safety Certificate cost? Regional prices, how to find a Gas Safe engineer, and what the annual inspection covers.
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