How Often Do Landlords Need a Gas Safety Certificate? (England 2026)

If you let a home with gas in it, the annual gas safety check is the one certificate you can never let slip. This guide explains what the law in England actually says, how the renewal window works, who needs a copy and what can happen if you miss it.

What the law requires

The rules come from regulation 36 of the Gas Safety (Installation and Use) Regulations 1998. Landlords must make sure every gas appliance, fitting and flue they provide for tenants is kept in a safe condition and checked for safety at least once every 12 months. The check must be done by an engineer on the Gas Safe Register. The engineer then gives you a record of the check, known as a landlord gas safety record, gas safety certificate or, informally, a CP12 (the name of the old CORGI form).

The duty covers appliances and flues you supply, such as a boiler, a gas fire or a gas hob you have fitted. Appliances that belong to the tenant are not covered by the annual check, although the pipework that feeds them still needs to be kept safe. The duty applies to most residential lets, including houses in multiple occupation, holiday lets and rooms let in your own home.

What the record shows

A valid record must include:

the date the check was done;
the address of the property;
the name and address of the landlord or agent;
a description and location of each appliance or flue checked;
any defect found and the action taken;
confirmation that the check included the safety checks the regulations require;
the engineer's name, signature and Gas Safe registration number.

If the engineer finds something unsafe, it must be put right before the appliance is used again. An appliance classed as "immediately dangerous" will usually be disconnected or capped with your permission until it is repaired.

The 12-month rule and the 10–12 month window

The basic rule is simple: no more than 12 months between checks. The problem used to be that booking early, to be safe, pulled your renewal date forward a little more every year.

The Gas Safety (Installation and Use) (Amendment) Regulations 2018 fixed this from 6 April 2018. If the new check is done between 10 and 12 months after the previous one, it is treated as if it was done on the anniversary of the previous check. In practice, your renewal date stays the same, and you have a two-month window to get the engineer in.

A worked example: your last check was on 15 March 2026. Any check between 15 January 2027 and 15 March 2027 keeps your next deadline at 15 March 2028. If you book it on 10 December 2026, more than two months early, the new deadline becomes 10 December 2027.

There is one catch. To rely on the window, you must keep each record until two further checks have been done, so your paperwork proves the dates line up.

Giving tenants a copy

Tenants have a legal right to see the record:

Existing tenants must be given a copy within 28 days of each check.
New tenants must be given a copy of the latest record before they move in.
Short lets of under 28 days, such as some holiday lets or rooms, can instead have a copy displayed in a prominent place in the property.

A digital copy by email is fine as long as the tenant can access it. Keep proof that you sent it. A dated email is the easiest way.

Keeping records

You must keep each gas safety record for at least two years. As explained above, if you use the 10–12 month window you need to keep each one until two further checks are done. Storing them online, with the date of the next check clearly marked, makes it far easier to show a council, insurer or letting agent that you have been compliant all along.

Access when the tenant will not let you in

You are expected to take "all reasonable steps" to carry out the check. HSE guidance says you should keep records of your attempts, such as letters, emails and texts offering appointments. If a tenant still refuses access, you should not force entry. A clear paper trail shows you tried. Booking early inside the 10–12 month window gives you time to rearrange if the first appointment falls through.

What happens if you get it wrong

Failing to carry out the annual check, or failing to give tenants a copy, is a criminal offence under health and safety law. The Health and Safety Executive (HSE) enforces the regulations and can prosecute. Courts can impose unlimited fines and, in serious cases, prison sentences. If a tenant is hurt or killed because of a gas fault, the consequences can be far more serious still, including manslaughter charges.

There are practical consequences too. Your landlord insurance may be affected, and a letting agent will usually refuse to market a property without a current record. Under the Renters' Rights Act 2025 the old "section 21" route to possession, which used to be tied to giving tenants a gas record, ended on 1 May 2026. That does not make the record less important: it is a safety duty in its own right, and the government's new private rented sector database is expected to ask for gas safety information for each property. Our PRS Database guide covers what is currently known.

A simple routine that keeps you safe

Note the date of your current record and set a reminder for 10 months after it.
Book the check inside the 10–12 month window so your renewal date never moves.
Check the new record has every detail listed above, including the engineer's Gas Safe number.
Send the tenant a copy the same day, and keep the email.
Store the record with the previous two, and set your next reminder.

If you also have to test smoke and carbon monoxide alarms at the start of a tenancy, it is sensible to have those checked on the same visit. Our alarm rules guide explains what is required.

How Severn LetSafe helps

We arrange landlord gas safety checks across Gloucestershire, Worcestershire and Herefordshire for £70 per property, carried out by vetted, independent Gas Safe registered engineers. We book inside the 10–12 month window, email the record to you and your tenant, and file it in your online vault with a reminder for next year. A smoke and CO alarm check can be added for £15. See our gas safety certificate service or book a check online.

Book now

Gas safety certificates £70 · EICRs from £140 · EPCs £70 · alarm checks £15 · Register-Ready Pack £249. Across Gloucestershire, Worcestershire and Herefordshire.

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Questions

How often does a landlord need a gas safety certificate?

Every gas appliance, fitting and flue the landlord provides must be checked by a Gas Safe registered engineer at least once every 12 months, and a new record issued after each check.

Can I renew my gas safety certificate early?

Yes. Since April 2018 a check done 10 to 12 months after the previous one can keep the original anniversary date, so you do not lose time. A check done earlier than 10 months resets the date.

When must tenants get a copy of the gas safety record?

Existing tenants within 28 days of the check. New tenants before they move in. Where a room is let for less than 28 days, a copy can be displayed in a prominent position instead.

How long must I keep gas safety records?

At least two years. If you use the 10–12 month window to keep your renewal date, keep each record until two further checks have been done.

Official sources

Checked 16 October 2026. General guidance for England, not legal advice. See also all regulations & official sources.

Gas safety

How often do landlords need a gas safety certificate?