Gas Safety Certificates (CP12) for London Landlords

What the gas safety check covers

A landlord gas safety check looks at the gas appliances, fittings and flues you provide for your tenants. The engineer records the findings on a gas safety record, which you keep and share with your tenants.

• Checks of each landlord-owned gas appliance, such as boilers, gas fires and cookers
• Checks that flues and chimneys are clear and working correctly
• Checks of ventilation and appliance safety devices
• A written record of each appliance checked, any defects found and any action taken

Who needs a gas safety certificate?

If you let a residential property in England that has gas appliances or a gas supply, you are normally responsible for arranging the annual check. This applies to:

• Private landlords letting a house or flat
• HMO landlords, including properties let room by room
• Letting and managing agents acting for landlords under a management agreement

The legal requirements

Under the Gas Safety (Installation and Use) Regulations 1998, landlords must ensure gas appliances and flues provided for tenants are maintained in a safe condition and checked every 12 months by a Gas Safe registered engineer.

• Give a copy of the record to existing tenants within 28 days of the check
• Give a copy to new tenants before they move in
• Keep each record for at least two years

The check can be carried out up to two months before the deadline while keeping the original expiry date, which makes it easier to plan around tenants.

Official guidance: HSE – gas safety for landlords

What happens during the visit

1. Arrange accessAgree a time with your tenants so the engineer can reach every gas appliance and the meter.
2. Appliance and flue checksThe engineer checks each appliance, its flue and its ventilation.
3. Any issues explainedIf something is unsafe, the engineer will explain the problem and what needs to happen next.
4. Your recordYou receive the gas safety record for your files and for your tenants.