How much does a landlord gas safety certificate cost in London? 2026 guide

A landlord gas safety certificate (gas safety record, often called a CP12) in London usually costs between about £60 and £120, depending on the number of gas appliances. At London Property Compliance a gas safety check is £69 for one gas meter including up to 3 appliances, with £20 for each extra appliance, and £99 for two meters. Properties with three or more meters are priced by quote.

What is checked

A Gas Safe registered engineer checks each gas appliance and flue, the gas pipework for tightness, ventilation and safety devices. They complete a gas safety record listing every appliance checked, any defects found and action taken. Always ask to see the engineer's Gas Safe ID card. You can confirm registration on the Gas Safe Register.

What changes the price

• Number of appliances: boilers, gas fires, cookers and hobs are each checked.
• Number of meters, for example in a converted building.
• Repairs are not included. If an appliance is unsafe, the engineer will explain the risk and quote for repairs separately.
• A boiler service is a different job from a gas safety check, although some engineers can do both on the same visit.

The rules for landlords

Under the Gas Safety (Installation and Use) Regulations 1998, landlords must:

• have every gas appliance and flue they provide checked by a Gas Safe registered engineer every 12 months;
• give a copy of the record to existing tenants within 28 days of the check, and to new tenants before they move in;
• keep records for at least 2 years;
• keep gas pipework, appliances and flues maintained in a safe condition.

You can have the check done up to 2 months before the deadline and keep the same renewal date. Set a reminder so it never lapses.

Save with a landlord package

Book a gas safety check with an EPC or EICR and save 10%, or book all three and save 15%. See landlord packages.

Book a gas safety check in London

Get an instant price on our gas safety booking page. Your record is saved in your customer portal, and we can remind you before next year's check.