For landlords

Landlord gas safety: the complete guide

UK landlords must have every gas appliance and flue they provide checked for safety every 12 months by a Gas Safe registered engineer, keep the record for two years, and give each tenant a copy, within 28 days of the check or before a new tenant moves in. It's a legal duty under the Gas Safety (Installation and Use) Regulations 1998.

Reviewed by Jordan Valentine-Dunn, Gas Safe registered engineer · Portsmouth Gas Heating · Last reviewed July 2026

If you let a property with gas, you have legal duties for your tenants' safety. They aren't complicated, but missing them is a criminal offence, so it pays to know exactly what's required. This is the whole picture, with links to the detail on each part.

Your duties at a glance

Have every gas appliance and flue you provide checked for safety every 12 months.
Use a Gas Safe registered engineer, and always check their ID card.
Give each existing tenant a copy of the record within 28 days of the check.
Give new tenants a copy before they move in.
Keep records for at least two years.
Keep pipework, appliances and flues maintained in a safe condition throughout the tenancy.

The detail, guide by guide

Does a landlord need a gas safety certificate? →How long is a CP12 valid? →What's checked in a gas safety inspection? →How much does a gas safety certificate cost? →What happens if the certificate expires? →If a tenant won't allow access →The penalties for non-compliance →

The hardest part of gas safety for a landlord isn't the check, it's never missing a renewal across a portfolio. Tracking each property's next-due date and chasing it automatically is exactly what compliance software is for.

Frequently asked

Which properties does the landlord gas duty apply to?

Most residential lettings: assured shorthold tenancies, room lets and many houses in multiple occupation. It applies to the gas the landlord provides; a tenant's own appliance is usually their responsibility, though the connecting installation and flue often remain the landlord's.

Is a CP12 the same as a landlord gas safety certificate?

Yes. The Landlord Gas Safety Record, historically the CP12 form, is what most people mean by a landlord gas safety certificate. All three names describe the same document.

Can a letting agent handle gas safety for me?

Often, yes, if you've agreed they manage compliance. The legal duty still ultimately rests with the landlord, so confirm in writing who arranges the checks and keeps the records.

Sources

Last reviewed July 2026. This guide is general information, not legal or safety advice, gas safety work must be carried out by an appropriately Gas Safe registered engineer. Rules can change, so check the linked official sources for the current position.

Spend less of your evening on this.

Manifold does CP12s on the doorstep and chases the renewals for you. It’s in early access for UK gas engineers, no card, just your first look.

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For landlords

Landlord gas safety: the complete guide

Reviewed by Jordan Valentine-Dunn, Gas Safe registered engineer · Portsmouth Gas Heating · Last reviewed July 2026

Your duties at a glance

Have every gas appliance and flue you provide checked for safety every 12 months.
Use a Gas Safe registered engineer, and always check their ID card.
Give each existing tenant a copy of the record within 28 days of the check.
Give new tenants a copy before they move in.
Keep records for at least two years.
Keep pipework, appliances and flues maintained in a safe condition throughout the tenancy.

The detail, guide by guide

Frequently asked

Which properties does the landlord gas duty apply to?

Is a CP12 the same as a landlord gas safety certificate?

Yes. The Landlord Gas Safety Record, historically the CP12 form, is what most people mean by a landlord gas safety certificate. All three names describe the same document.

Can a letting agent handle gas safety for me?

Often, yes, if you've agreed they manage compliance. The legal duty still ultimately rests with the landlord, so confirm in writing who arranges the checks and keeps the records.

Sources

Spend less of your evening on this.

Manifold does CP12s on the doorstep and chases the renewals for you. It’s in early access for UK gas engineers, no card, just your first look.

Get early access

Landlord gas safety: the complete guide

Your duties at a glance

Frequently asked

Sources

Related guides

Spend less of your evening on this.

Landlord gas safety: the complete guide

Your duties at a glance

Frequently asked

Sources

Related guides

Spend less of your evening on this.