What happens if your gas safety certificate expires?

It happens more often than most landlords like to admit: a reminder gets missed, an engineer cancels, a tenant is away, and suddenly the gas safety record is out of date. If that is you, this guide explains what it means legally and exactly what to do now.

Is it actually a problem?

Yes. Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 requires landlords to have gas appliances, fittings and flues checked at least once every 12 months. There is no grace period. From the day after the 12 months runs out, you are in breach.

The 10–12 month window introduced in 2018 does not extend the deadline. It only lets you renew up to two months early without moving your renewal date. Our guide on how often you need a gas safety certificate explains how it works.

The legal risks

Prosecution

The Health and Safety Executive (HSE) enforces landlord gas safety. Failing to carry out the annual check, or failing to give tenants a copy of the record, is a criminal offence. Courts can impose unlimited fines and, in serious cases, prison sentences. HSE's landlord guidance makes clear that these are duties landlords cannot ignore, and if a tenant or visitor is harmed by a gas fault, the consequences can be far more serious.

The real danger: carbon monoxide

The law exists because faulty gas appliances can leak carbon monoxide, which has no colour, taste or smell, and can cause fires and explosions. An in-date record does not guarantee safety, but an annual check is how faults are found before they hurt someone. That should be the main reason to fix an expired record quickly.

Insurance, agents and lenders

Many landlord insurance policies require you to meet your legal safety duties, so check your policy wording. A claim linked to a gas fault could be harder to make if your record had expired. Letting agents and mortgage lenders often require an in-date record too.

What about evictions?

Before 1 May 2026, an expired or missing gas record could stop a landlord serving a valid section 21 notice. The Renters' Rights Act 2025 abolished section 21 from that date, so that particular link has gone. Possession now depends on section 8 grounds. That does not reduce your gas safety duty at all, and the new private rented sector database is expected to record gas safety information for each property (see our PRS Database guide).

What to do today

1. Book a Gas Safe registered engineer as soon as possible. Explain that the record has expired and ask for the earliest slot.
2. Tell your tenant. Contact them in writing, explain why the visit is needed, and offer appointment times. Give proper notice for access, normally at least 24 hours, unless it is an emergency.
3. Keep evidence. Save copies of every message, booking and missed appointment.
4. Act on the results. If the engineer finds a fault, get it fixed before the appliance is used again. Anything "immediately dangerous" will normally be disconnected.
5. Send the tenant the new record within 28 days of the check, and keep proof you sent it.
6. Set a reminder for 10 months' time so it never happens again.

Note that the new check starts a fresh 12-month cycle from the date it is done. Your old anniversary date is lost, so plan your future reminders from the new record.

If the tenant will not give access

Sometimes a record expires because the tenant keeps cancelling or will not answer. The law expects landlords to take "all reasonable steps" to carry out the check. HSE guidance says you should:

• write to the tenant explaining the legal requirement and why the check matters for their safety;
• offer several appointments, including evenings or weekends if needed;
• keep a record of every attempt, including letters, emails, texts, calls and missed visits;
• never force entry.

If, despite all reasonable steps, you could not get access, your records will be your evidence that you tried. Keep trying, and consider seeking advice if the tenant continues to refuse.

Common reasons records expire, and how to avoid them

• Relying on memory. Use a calendar or a service that reminds you at 10 months.
• Booking right at the deadline. Use the 10–12 month window, so a cancelled appointment does not push you over.
• Multiple properties with different dates. Keep all dates in one list, or line them up over time using the window.
• Changing engineers. If your usual engineer retires or moves away, you lose the reminder they used to send.
• Empty periods. If a property is empty, the check is still needed before a new tenant moves in.

Alarms and other paperwork

When you get the engineer in, it is a good moment to check your other safety paperwork. Are smoke and CO alarms in place and working (see our alarm rules guide)? Is your EICR in date? Is your EPC still valid? An expired gas record is often a sign that other dates have slipped too.

How Severn LetSafe helps

If your record has expired, we can usually arrange a check quickly with a vetted, independent Gas Safe registered engineer across Gloucestershire, Worcestershire and Herefordshire, for £70 per property. Add a smoke and CO alarm check for £15. We email the record to you and your tenant and set up reminders inside the 10–12 month window, so you never miss one again. See our gas safety certificate service or book now.

Questions

Official sources

• The Gas Safety (Installation and Use) Regulations 1998, regulation 36 (legislation.gov.uk)
• The Gas Safety (Installation and Use) (Amendment) Regulations 2018 (legislation.gov.uk)
• HSE: Gas safety, landlords and letting agents
• GOV.UK: Renters' Rights Act, an overview for landlords

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

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