Gas safety certificates (also known as CP12 certificates) are one of the most fundamental compliance requirements for landlords. Failure to have a valid gas safety certificate is not just a compliance failure — it is a criminal offence that can result in imprisonment.
What is a Gas Safety Certificate?
A gas safety certificate (formally known as a Gas Safety Record) is a document issued by a Gas Safe registered engineer confirming that all gas appliances, fittings, and flues in a property have been inspected and are safe to use.
Who Needs a Gas Safety Certificate?
Any landlord who provides gas appliances in their rental property must have a valid gas safety certificate. This includes:
If there are no gas appliances in the property, no certificate is required.
How Often Must the Certificate be Renewed?
Gas safety certificates must be renewed annually. The renewal must be carried out within 10–12 months of the previous certificate (not exactly 12 months — there is a 2-month window to allow for scheduling flexibility).
What Must Happen with the Certificate?
1. Before a new tenancy starts: A copy of the current gas safety certificate must be given to new tenants before they move in.
2. During a tenancy: A copy of the new certificate must be given to existing tenants within 28 days of the annual check.
3. Record keeping: Landlords must keep a copy of the certificate for at least 2 years.
What Happens if You Miss the Renewal?
Failure to have a valid gas safety certificate is a criminal offence under the Gas Safety (Installation and Use) Regulations 1998. Landlords can be prosecuted and face an unlimited fine or up to 2 years' imprisonment.
In addition, if a tenant is injured or killed due to a gas safety failure, the landlord faces significant civil liability.
Cost of a Gas Safety Certificate
The cost of a gas safety certificate varies by location and the number of appliances, but typically ranges from £60 to £120 for a single appliance. Many Gas Safe engineers offer discounts for landlords with multiple properties.
RentersComply tracks all gas safety certificate expiry dates and sends automated reminders at 90, 60, and 30 days before renewal is due.