How long does a gas safety certificate last?

For rented homes in England, a landlord gas safety record is typically valid for 12 months from the date of the check. Renewing up to two months before expiry normally does not shorten the next 12-month window — check the record for the actual expiry date.

Who can issue a gas safety certificate?

Only a Gas Safe registered engineer can carry out the checks on a rental property. You can verify an engineer's registration on the Gas Safe Register before booking. The landlord — not the tenant — is responsible for arranging and paying for the inspection.

How much does a landlord gas safety check cost?

Prices vary by area and by how many appliances are checked. Many independent Gas Safe engineers charge in the £60–£120 range for a single-appliance boiler check, with more for extra appliances. Always ask what's included and get a written price before booking.

What if the tenant refuses access for the gas safety check?

Keep clear written evidence that you tried — texts, emails, recorded-delivery letters, engineer visit notes. The duty is on the landlord, so repeated documented attempts matter. Take advice before threatening entry, and never force entry without a court order.

Do I have to give the tenant a copy of the CP12?

Yes. In England you must give the tenant a copy of the record within 28 days of the check, and give any new tenant a copy before they move in. Emailing the PDF is usually acceptable if the tenancy agreement allows electronic service.

What happens if I miss the gas safety deadline?

Non-compliance is a criminal offence under the Gas Safety (Installation and Use) Regulations 1998. Penalties can include an unlimited fine and, in serious cases, imprisonment. Insurers may also decline claims. Getting the check redone as soon as possible is the first step.

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Gas safety certificate (CP12) for landlords in England

A plain-English diary page for self-managing landlords: when the annual check is due, who can do it, what to give the tenant, and how CertDiary emails you before it lapses.

In England, most rented homes with a gas supply need an annual gas safety check on appliances, flues and pipework. The check must be done by a Gas Safe registered engineer, and the record — commonly called a CP12 or landlord gas safety record — is what you keep, share with the tenant, and diary for next year. This page is a plain summary for self-managing landlords. It is not legal advice.

What the law actually asks for

The Gas Safety (Installation and Use) Regulations 1998 place the duty on the landlord (or their agent) to arrange checks and keep records. In practice that means three things: an engineer with the right registration, a record you can produce on request, and the tenant holding a copy.

How often is a gas safety certificate needed?

For rented homes in England, gas safety is typically an annual check. Renewing up to two months before the existing certificate expires normally lets the next 12-month window begin from the old expiry date, so you do not lose time by acting early. CertDiary uses the date you enter and treats gas safety as due 12 months later.

Who can carry out the check?

Only a Gas Safe registered engineer, working within the categories on their card. You can search the Gas Safe Register by postcode or engineer ID before booking. Cheap quotes from unregistered fitters are not a saving — records they produce are not compliant, and any incident becomes your problem.

What to store against the date

The date the last satisfactory check was completed.
The PDF of the record (CP12), so you can email it to a tenant, agent or insurer.
The engineer's Gas Safe ID number, useful if you ever need to verify their work.
Any remedial actions and the dates they were completed.

Sharing the record with the tenant

You must give the tenant a copy of the record within 28 days of the check, and any new tenant a copy before they move in. Emailing the PDF is usually fine if the tenancy agreement allows electronic service; some landlords also print a copy for the property folder. Keep evidence that it was sent.

What if the tenant refuses access?

Landlords do not have an automatic right to enter, but they do have a legal duty to keep gas safe. If a tenant will not let the engineer in:

Give at least 24 hours written notice of the proposed visit.
If the visit is missed, follow up in writing (email or recorded delivery) explaining the legal position and offering flexible times.
Keep a dated log of every attempt, including engineer visit notes.
Take advice before considering forced entry — a court order is normally required.

The point is not just protection from prosecution: it is showing, on paper, that you took the duty seriously.

Common mistakes CertDiary is designed to stop

Booking the check after the date has already passed.
Forgetting to hand a copy to a new tenant on move-in day.
Losing the PDF between phone changes and email accounts.
Assuming the letting agent has it, when they no longer manage the property.

Related dates on the same property

Most landlords also keep an EICR (typically every five years), an EPC (typically ten years), and the deposit 30-day clock. CertDiary keeps all of these against the same property so you are not maintaining four spreadsheets.

Rules and guidance change — check the source

This page reflects the general picture for private lettings in England. Rules, tolerances and penalties can change, and other UK nations have their own regimes. If you need a binding view — for example, before a possession claim or an insurance dispute — check the current HSE guidance or take legal advice.

Frequently asked questions

How long does a gas safety certificate last?: For rented homes in England, a landlord gas safety record is typically valid for 12 months from the date of the check. Renewing up to two months before expiry normally does not shorten the next 12-month window — check the record for the actual expiry date.
Who can issue a gas safety certificate?: Only a Gas Safe registered engineer can carry out the checks on a rental property. You can verify an engineer's registration on the Gas Safe Register before booking. The landlord — not the tenant — is responsible for arranging and paying for the inspection.
How much does a landlord gas safety check cost?: Prices vary by area and by how many appliances are checked. Many independent Gas Safe engineers charge in the £60–£120 range for a single-appliance boiler check, with more for extra appliances. Always ask what's included and get a written price before booking.
What if the tenant refuses access for the gas safety check?: Keep clear written evidence that you tried — texts, emails, recorded-delivery letters, engineer visit notes. The duty is on the landlord, so repeated documented attempts matter. Take advice before threatening entry, and never force entry without a court order.
Do I have to give the tenant a copy of the CP12?: Yes. In England you must give the tenant a copy of the record within 28 days of the check, and give any new tenant a copy before they move in. Emailing the PDF is usually acceptable if the tenancy agreement allows electronic service.
What happens if I miss the gas safety deadline?: Non-compliance is a criminal offence under the Gas Safety (Installation and Use) Regulations 1998. Penalties can include an unlimited fine and, in serious cases, imprisonment. Insurers may also decline claims. Getting the check redone as soon as possible is the first step.

Put the date in a diary. We email you before it lapses.

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