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Landlord Gas Safety Duties: The Legal Side Explained

Reviewed by our Gas Safe registered engineers  ·  Last updated 22 July 2026

Getting the annual check done is only part of a landlord’s legal obligation. There’s a set of record-keeping and tenant-notification duties that catch out even experienced landlords — here’s exactly what the law requires of you.

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Quick answer: Beyond arranging the annual gas safety check on every appliance and flue, you must give existing tenants a copy of the Gas Safety Record within 28 days of the check, give new tenants a copy before they move in, keep records for at least two years, and use a Gas Safe registered engineer. Miss any of these and you’re non-compliant even if the check itself was done. The safety check is a legal requirement; a service is separate.

Your Duties

What the law actually requires

Under the Gas Safety (Installation and Use) Regulations, a landlord’s duties go well beyond booking the check. Here’s the full set.

DutyWhat the law requires
Annual gas safety checkEvery gas appliance and flue checked every 12 months by a Gas Safe engineer
Give tenants the recordExisting tenants within 28 days; new tenants before they move in
Keep recordsRetain each Gas Safety Record for at least two years
Use a registered engineerOnly a Gas Safe registered engineer can carry out the check
Right of accessTake reasonable steps to gain access and keep evidence of your attempts
Act on defectsAddress any faults the engineer identifies without delay
In Practice

Getting it right

Your core duties

Arrange the annual check on every appliance and flue, use a Gas Safe registered engineer, give tenants their copy of the record on time, and keep records for two years. Set a renewal reminder so the anniversary date never slips.

Where landlords get caught out

Assuming a letting agent handles it (check your contract), missing the 28-day tenant-copy deadline, letting the anniversary date drift later each year, and confusing a service with the legal safety check. A CP12 is not a service, and a service is not a CP12.

Engineer Insight

Protect your anniversary date

The mistake we see most is the anniversary date quietly drifting. The check is due every 12 months, but if you book late each year the date creeps forward and eventually you’re out of compliance without realising. You can have the check done up to two months before it’s due without losing the original anniversary date — so booking early actually protects your dates. If you manage several properties, put them all on one schedule and let us handle the reminders.

Costs

What a check typically costs

Landlord Gas Safety Check (CP12), 1 applianceCertificateFrom £80
Additional appliancesPer appliance£10–£20 each
Safety check + boiler serviceCombined visit£120–£180
Multi-property renewal planManaged scheduleQuoted on request

Typical North London guide prices — you’ll always get an upfront quote before any work starts.

FAQs

Landlord duties — your questions answered

Arrange an annual gas safety check on every appliance and flue by a Gas Safe registered engineer, give tenants a copy of the record (existing within 28 days, new before they move in), keep records for at least two years, and act on any defects found.

Within 28 days of the check for existing tenants, and before they move in for new tenants. For very short lets you can display the record prominently instead.

At least two years. Keep them somewhere accessible — you may need to produce them for a new tenancy, a dispute, or an insurance or legal query.

Only if your contract says so. Many landlords assume the agent arranges it and get caught out. Check the agreement in writing, and confirm who books the check and holds the records.

No. The safety check (CP12) is a legal inspection confirming appliances are safe at that time. A service is maintenance that keeps the boiler running well. You often want both, but one doesn’t include the other.

Managing rentals? We’ll keep you compliant.

Book a Landlord Gas Safety Check, or set up a managed renewal schedule across your properties. Gas Safe registered, North London, upfront pricing.

Gas Safe Registered 918817  |  North London specialists  |  Upfront pricing

Related Koncore servicesStay compliant with an annual gas safety check — book an annual boiler service or contact our team. See the areas we cover.
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