Buying a tenanted property with no gas safety record leaves you holding the duty from completion. In England, the Gas Safety (Installation and Use) Regulations 1998 as amended make the current landlord responsible for the annual gas safety check, for the record and for the copy the tenant receives. The seller's gap does not transfer as an excuse. What you can do is ask for the paperwork in writing, arrange a check with a Gas Safe registered engineer, and keep notes of every step you take.
Who holds the gas safety duty after you buy a tenanted property?
You do, from the day the property becomes yours. HSE treats you as a landlord if you rent out a property you own under a lease of less than seven years, or under a licence. In England, the Gas Safety (Installation and Use) Regulations 1998 as amended then require you to keep the gas pipework, appliances and flues you provide for the tenant in a safe condition. They also require an annual gas safety check on each of those appliances and flues by a Gas Safe registered engineer.
The duty cannot be handed to the tenant. HSE is explicit that no tenancy clause moves it, not even a full repairing lease. One narrow exception exists. An appliance the tenant owns, and the flue that serves only that appliance, remain the tenant's responsibility.
Buying mid-tenancy is not a fresh start. The tenancy carries on, and the gas safety duty changes hands with the title.
What applies if the seller cannot produce a gas safety record?
A missing record does not remove the duty, it leaves you needing to arrange the check yourself. Ask the seller in writing for any record before completion and keep the reply. Where no record exists, HSE expects a landlord to show that all reasonable steps were taken to comply with the Gas Safety (Installation and Use) Regulations 1998 as amended. Your written notes are that evidence: when you asked, who you asked, and which appointments you offered.
Arrange a gas safety check with a Gas Safe registered engineer once you have access to the property. HSE publishes how to confirm that an engineer is registered. Tenants can also report a property with no record of a gas safety check to HSE, so a gap is not invisible.
Completion does not pause the annual gas safety check. If the record is missing, the question HSE asks a new owner is what reasonable steps were taken, and when.
Which gas documents should the seller hand over with the property?
The most recent gas safety record, plus the two years of history behind it, is the core of the handover. Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 as amended requires a landlord to keep copies of records for two years, so that history should exist somewhere in the seller's or the agent's files.
- The latest gas safety record, showing the date of check, the property address, and the engineer's name, registration number and signature
- Records from the previous two years, which the retention period requires the seller to hold
- Every safety defect noted on a record, with written evidence of the remedial work carried out
- Proof that the record was issued to the sitting tenant
- A list of the gas appliances and flues in the property, and which of them belong to the tenant
- Boiler and cylinder manuals, including the completed Benchmark commissioning checklist at the back of the boiler manual
- Warranty registration details for the boiler, so you can read the manufacturer's terms
A gas safety record is a living document. It is issued straight after the check even when defects were found, and evidence of the follow-up work belongs with it. If the record lists a defect and nothing else is in the file, treat the work as unproven.
Do you have to give the sitting tenant a copy of the record?
Yes. The duty to issue the record sits with whoever is the landlord now, not with whoever first let the property. Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 as amended requires a copy to reach an existing tenant within 28 days of the check. A new tenant must receive a copy before moving in.
Electronic copies are acceptable where the tenant agrees to that and can access them. A paper copy must be provided on request. Keep your copies for two years, and keep proof of when the tenant received each one. There is more detail in our guide to giving a tenant the gas safety certificate and the deadlines.
Does the annual due date change when the property changes hands?
The 12-month cycle runs from the last gas safety check, not from your completion date. In England, the Gas Safety (Installation and Use) Regulations 1998 as amended require a check on each relevant appliance and flue at intervals of no more than 12 months. The Gas Safety (Installation and Use) (Amendment) Regulations 2018 allow a check to be carried out up to two months before the due date, in the 10th, 11th or 12th month, and the original due date is then kept. Using that flexibility is voluntary.
Before a new tenancy begins, the check must have been carried out within the previous 12 months. The record goes to the incoming tenant before they move in. Our guide covers the 12-month rule, early renewal and lapsed records in more depth.
Inherited an ID or AR label on the boiler: what does it mean?
"Immediately Dangerous" (ID) means the appliance is an immediate danger to life or property. It is physically disconnected, sealed and labelled "Danger — Do Not Use". "At Risk" (AR) means a fault is present that could become dangerous. Both labels carry the same message, which is that the appliance must not be used.
Using an appliance known to be unsafe, or allowing a tenant to use it, is an offence. An appliance that has been isolated or disconnected must not be reconnected. Remedial work is for a Gas Safe registered engineer: anything on gas pipework, on the flue or behind the boiler casing is not a job for you or your tenant.
Where the disconnected appliance was the heating, the landlord must provide alternative heating for the tenant while the fault is put right. Our guide explains why an appliance fails a gas safety check and what each label leads to.
Which other tenant paperwork comes with the property in England?
Carbon monoxide alarms and written tenancy information both become your responsibility. The Smoke and Carbon Monoxide Alarm (England) Regulations 2015, as amended in 2022, require a CO alarm in every room used as living accommodation that contains a fixed combustion appliance. Gas cookers are excepted. A gas boiler or gas fire in such a room brings the property into scope, and a tenant's report of a faulty alarm means the landlord must repair or replace it.
Written information is a separate duty. Since 1 May 2026 the Renters' Rights Act 2025 applies to private landlords in England. Assured shorthold tenancies are abolished and existing tenancies have become assured periodic tenancies. The Assured Tenancies (Private Rented Sector) (Written Statement of Terms etc and Information Sheet) (England) Regulations 2026 set out what you must put in writing for the tenant, including your legal obligations on the condition of the property. A financial penalty may apply where that information is not given.
If the tenanted property you have bought needs its annual check and record, you can arrange a landlord gas safety certificate (CP12) with a Gas Safe registered engineer.
Sources
- HSE – Who is a landlord?
- HSE – Gas safety check records and what to keep
- HSE – Gas safety checks: what if…?
- HSE – Domestic gas: frequently asked questions
- HSE – Check an engineer: are they Gas Safe registered?
- Gas Safety (Installation and Use) Regulations 1998, regulation 36
- Gas Safety (Installation and Use) (Amendment) Regulations 2018
- GOV.UK – Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022: guidance for landlords and tenants
- GOV.UK – Guide to the Renters' Rights Act
- Assured Tenancies (PRS) (Written Statement of Terms etc and Information Sheet) (England) Regulations 2026
- Baxi – Boiler warranty information