Gas
CP12 landlord gas certificate: when you need one
6 min read · Published 2026-06-15
Landlords must arrange an annual gas safety check by a Gas Safe registered engineer for every rented property.
The CP12 must be issued before a new tenancy starts or within 28 days of expiry for renewals.
Keep copies for 24 months and provide tenants with a copy within 28 days of the check.
Block managers should run rolling CP12 programmes to avoid void-period delays.
BB Property Maintenance schedules CP12 across London portfolios with digital certificate delivery.