Landlord Gas Safety Certificate — What You Need to Know
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Post a job — we'll find you an engineer →As a landlord you are legally required to have a Gas Safety Record (CP12) completed annually for all gas appliances in rented properties. Failure to do so is a criminal offence with potential unlimited fines and imprisonment.
The Landlord Gas Safety Check (officially a Gas Safety Record, often called a CP12) is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998. Every landlord who rents a property with gas appliances must have a gas safety check carried out annually by a Gas Safe registered engineer and provide a copy to tenants within 28 days of the check.
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Book the annual gas safety check with a Gas Safe registered engineer — check their registration at gassaferegister.co.uk or call 0800 408 5500. Only Gas Safe registered engineers can legally carry out this inspection.
Ensure the engineer checks all gas appliances in the property: boiler, gas cooker, gas fires, and any other gas-burning appliances. The check covers: burner pressure, gas rate, ventilation, safety devices, and the condition of pipework.
The engineer will issue a Gas Safety Record (CP12 certificate) listing each appliance, test results, and any defects found. Defects must be repaired by a Gas Safe engineer before the property can be safely occupied.
Provide a copy of the Gas Safety Record to existing tenants within 28 days of the check. For new tenants, provide a copy before they move in. Keep a copy of all records for at least 2 years.
For HMOs (Houses in Multiple Occupation), the same rules apply — all gas appliances in common areas and individual units must be checked annually.
Carbon monoxide detectors are not legally required by gas safety regulations but are strongly recommended (and required by the Smoke and Carbon Monoxide Alarm Regulations in England for properties with solid fuel appliances). Fit CO alarms in all rooms with gas appliances.
Costs vary by region and the number of appliances: a single boiler check typically costs £60–90; a boiler plus gas cooker £80–120; a full property with multiple appliances £100–150.
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