Do landlords need a gas safety certificate, and what does it cover?

In England, Wales and Scotland, landlord gas safety is governed by the Gas Safety (Installation and Use) Regulations 1998; Northern Ireland has the same annual-check duty under its separate 2004 regulations. The document landlords call a gas safety certificate, landlord gas safety Certificate or CP12 is legally a gas safety record, not a statutory certificate.

Do landlords need a gas safety certificate?

Landlords with gas appliances or flues they are responsible for must arrange landlord gas safety checks at least every 12 months, because regulation 36 requires them to “ensure that each appliance and flue to which that duty extends is checked for safety within 12 months of being installed and at intervals of not more than 12 months since it was last checked for safety.” A gas safety certificate is the common name for the record produced after the check; CP12 is also a trade label, and one specialist guide puts it plainly: “The term CP12 remains in common use but is not a statutory term.” The statutory landlord gas safety duty applies in England, Wales and Scotland under the Gas Safety (Installation and Use) Regulations 1998, while Northern Ireland imposes the same annual-check duty under its own 2004 regulations. A missing record is therefore not a paperwork nicety: it is evidence that the annual gas safety check duty has not been met. Abodient tracks each property's gas safety certificate expiry date and sends renewal reminders, which is the practical way to avoid discovering a lapsed record only once the annual check is already overdue.

What does a landlord's gas safety certificate cover?

A landlord’s gas safety record covers the gas appliances and flues the landlord is responsible for, not the whole property, and the record must include details such as “the date on which the appliance or flue was checked.” For a boiler gas safety certificate, that means the boiler and its flue; for other landlord-owned gas appliances, those appliances also fall within the check. The regulations tie the check to appliance and flue safety, including “the effectiveness of any flue,” so the record is not a general building-condition certificate, an electrical certificate or a service history. It also does not turn every tenant-owned appliance into the landlord’s appliance, although associated pipework and flues can still matter. The useful distinction is simple: the annual record follows the gas fittings and flues within the landlord’s responsibility, and a “gas safety certificate” or CP12 is the market name for that statutory record.

Do you need a gas safety certificate if the property has no gas appliances?

A landlord in England, Wales or Scotland does not need an annual gas safety check just because the property exists if it has no gas appliances, because HSE states: “As there are no appliances, an annual gas safety check is not required.” That answers the practical question whether a gas safety certificate is a legal requirement if the property has no gas appliances at all: the annual check duty has nothing to bite on where there are no relevant appliances. The caveat is flues. HSE also says that even with no appliances, “Yes you must still maintain the flue in a safe condition and carry out any required repairs.” That means a disused or shared flue running through the property can still create a maintenance obligation, even though there is no annual CP12-style appliance check to obtain. This no-appliances position is confirmed for Great Britain; landlords in Northern Ireland should check the separate Northern Ireland rules before relying on the same answer.

Do homeowners need a gas safety certificate?

Homeowners do not need a gas safety certificate for their own home unless they are acting as a landlord, because regulation 36 is framed around the landlord duty and begins: “36.—(1) In this regulation— ‘landlord’ means—”. An owner-occupier can still pay for a voluntary gas safety check, and many do so before selling, after boiler work, or for reassurance, but no general homeowner CP12 rule exists. HSE’s closest guidance for a rent-free occupier in someone’s home says: “Although a gas safety check is not required under the regulations, HSE strongly recommends that you maintain and service gas appliances as recommended by the manufacturer.” The important line is between legal duty and sensible maintenance: servicing a boiler is prudent, and may be required by a warranty or insurer, but the statutory landlord gas safety record duty is not imposed simply because you own and live in a home.

Do you need a gas safety certificate for a lodger?

A live-in owner who takes a paying lodger needs an annual gas safety check, because HSE says: “You are classed as a landlord, so you need to arrange an annual gas safety check.” That means the question is not defeated by the owner also living in the property; payment for occupation turns the arrangement into one HSE treats as landlord-and-occupier for gas safety purposes. The annual record should cover the relevant gas appliances and flues for which the live-in landlord is responsible, such as a gas boiler or gas fire serving the accommodation. A person staying rent-free is different: HSE says that where the regulations do not require a check, it still “strongly recommends” maintaining and servicing gas appliances as the manufacturer recommends. For a paying lodger, however, treat the gas safety certificate as a live landlord obligation, not optional household maintenance.

Who is responsible for the gas safety check, the landlord, the tenant or the agent?

The landlord is responsible for the gas safety check unless a management contract puts the duty on an agent, and HSE says an ordinary tenant cannot be made responsible for it: “No, except that a contract may be drawn up between a landlord or tenant for an appliance or flue installed in a non-residential part of a premises, for example shops and public houses.” The statutory starting point is regulation 36: “Every landlord shall ensure that there is maintained in a safe condition—”. The regulation’s reference to an agent is mainly record-keeping, requiring the record to show “the name and address of the landlord of the premises (or, where appropriate, his agent).” HSE practice goes further where an agency contract expressly allocates responsibility: “If the contract specifies that the agent has responsibility then the same duties under the Gas Safety (Installation and Use) Regulations 1998 that apply to a landlord apply to the agent.”

Who can carry out a landlord's gas safety check?

A landlord’s gas safety check must be carried out by an HSE-approved class of gas worker, which in practice means a Gas Safe registered engineer with the right category of registration for the appliance. Regulation 36(4) says the landlord must ensure the work or check is carried out “by, or by an employee of, a member of a class of persons approved for the time being by the Health and Safety Executive for the purposes of regulation 3(3).” Northern Ireland has the same rule in its own regulations. Gas safety training alone is not enough for a landlord’s statutory check unless it leads to the required registration and competence for the relevant work. HSE’s practical advice is to check the engineer’s credentials at the door: “The engineer should be able to provide you with a current ID card.” The card matters because Gas Safe registration is appliance-specific, not just a general badge.

Do you have to give the tenant a copy of the gas safety record?

Yes: an existing tenant must receive a copy of the gas safety record within 28 days of the check, and a new tenant must receive the last record before they move in. Regulation 36(6)(a) requires that “a copy of the record made pursuant to the requirements of paragraph (3)(c) above is given to each existing tenant of premises to which the record relates within 28 days of the date of the check.” For a new tenant, regulation 36(6)(b) requires that “a copy of the last record made in respect of each appliance or flue is given to any new tenant of premises to which the record relates before that tenant occupies those premises.” HSE accepts electronic delivery if the tenant can access it and agrees, saying: “Yes, if your tenant is happy to receive their copy electronically and can access it in this way.”

How long does a gas safety check take?

No law fixes how long a gas safety check must take, and a normal single-boiler or one-to-two-appliance landlord check is usually a short appointment rather than an all-day inspection. Trade practice commonly puts a straightforward visit at about 30 to 60 minutes, with longer appointments for larger houses, HMOs, awkward access, failed tests or multiple gas appliances. The reason there is no statutory duration is that the legal duty is about what must be checked and who may check it, not a minimum time on site. A marketing guide captures the practical reality without creating a legal rule: “Inspection duration varies based on property size and complexity.” Landlords should therefore book based on the number of appliances, access arrangements and likely remedial issues, rather than assuming a fixed CP12 appointment length. A rushed check is not automatically invalid, but an incomplete check is the problem.

How much does a gas safety check cost?

A landlord gas safety certificate typically costs about £80 for a standard UK property, with Checkatrade putting the average range at “between £60 and £90, with an average UK cost of around £80.” Another 2026 market estimate gives a wider working figure for a standard single-boiler check: “A CP12 costs £60–£120 for a standard single-boiler check, plus £15–£35 per extra appliance.” British Gas and other larger providers may price differently depending on whether the check is bundled with boiler service or cover, so compare like-for-like: a gas safety check, a boiler service and emergency breakdown cover are not the same product. The law fixes the 12-month interval, not the price; regulation 36 requires the check “within 12 months of being installed and at intervals of not more than 12 months since it was last checked for safety,” but it does not impose a tariff.

Who is responsible for gas safety in a commercial property?

In a wholly commercial property, the tenant is normally responsible for gas safety of the equipment it uses, unless the lease allocates responsibility differently or the landlord controls shared plant. GOV.UK tells business tenants that “gas safety - you must maintain equipment according to the manufacturer's instructions, which could mean an annual inspection by a registered gas safety engineer to make sure appliances and pipework are safe.” The domestic landlord gas safety duty is narrower than many assume because regulation 36 excludes fittings “exclusively used in a part of premises occupied for non-residential purposes.” In practice, commercial leases do the heavy lifting: one commercial-property guidance note states, “The lease will specify whether the landlord or the tenant has responsibility for gas safety.” A landlord may still be responsible for boilers, risers, meters or communal gas plant retained under its control, so the lease and physical control decide the answer.

The engineer wants to cap a dangerous appliance right now: do you need the tenant's agreement?

No statute requires the engineer to obtain the tenant’s agreement before a dangerous appliance is made safe, but industry procedure asks for permission and only a gas transporter or relevant authority has the statutory override if permission is refused. The legal duty is immediate non-use: regulation 34 says the responsible person “shall not use a gas appliance or permit a gas appliance to be used if at any time he knows or has reason to suspect that it cannot be used without constituting a danger to any person.” The engineer’s statutory duty is to warn the responsible person, because anyone doing gas work who suspects danger must “forthwith take all reasonably practicable steps to inform the responsible person.” Industry procedure then says, “With the permission of the gas user/responsible person, immediately disconnect and seal the gas supply.” If permission is refused, the visiting engineer should escalate; the statutory right to enter and disconnect sits with public gas transporters and relevant authorities.

The gas has been capped over an illegal fitting you did not know about: what happens now?

You do not have to report the illegal fitting to HSE yourself just because you are the landlord; the RIDDOR reporting duty sits with the registered gas engineer who found reportable gas danger, and regulation 11 says “the approved person must send a report of that information to the Executive in an approved manner within 14 days of acquiring that information.” What happens next is practical and urgent: the capped fitting must stay unused, the defect must be repaired or removed by a competent Gas Safe engineer, and the supply should not be restored until it is safe. HSE warns: “In no circumstances should you reconnect an appliance that you have been told is unsafe, which has either been isolated or disconnected for safety reasons, until the fault has been rectified.” If heating has been disconnected, HSE says the landlord must provide emergency heating while arranging remedial work. If a gas transporter capped the supply to avert danger, that GB override is statutory; Northern Ireland is not stated here on that override.

Last reviewed August 2026.

Sources

• Gas Safety (Installation and Use) Regulations 1998, regulation 36(3)(a) — “ensure that each appliance and flue to which that duty extends is checked for safety within 12 months of being installed and at intervals of not more than 12 months since it was last checked for safety” Source
• Gas Safety (Installation and Use) Regulations (Northern Ireland) 2004, regulation 36(3)(a) — “ensure that each appliance and flue to which that duty extends is checked for safety within twelve months of being installed and at intervals of not more than twelve months since it was last checked for safety” Source
• LLCR landlord CP12 guide — “The term CP12 remains in common use but is not a statutory term.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 26(9)(a) — “the effectiveness of any flue” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(3)(c)(i) — “the date on which the appliance or flue was checked” Source
• HSE landlord guidance on properties with no appliances — “As there are no appliances, an annual gas safety check is not required.” Source
• HSE landlord guidance on flues with no appliances — “Yes you must still maintain the flue in a safe condition and carry out any required repairs.” Source
• HSE guidance on who needs a gas safety check — “Although a gas safety check is not required under the regulations, HSE strongly recommends that you maintain and service gas appliances as recommended by the manufacturer.” Source
• HSE guidance on lodgers — “You are classed as a landlord, so you need to arrange an annual gas safety check.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(2) — “Every landlord shall ensure that there is maintained in a safe condition—” Source
• HSE landlord FAQ — “No, except that a contract may be drawn up between a landlord or tenant for an appliance or flue installed in a non-residential part of a premises, for example shops and public houses.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(3)(c)(iii) — “the name and address of the landlord of the premises (or, where appropriate, his agent)” Source
• HSE landlord FAQ on agents — “If the contract specifies that the agent has responsibility then the same duties under the Gas Safety (Installation and Use) Regulations 1998 that apply to a landlord apply to the agent.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(4) — “Every landlord shall ensure that any work in relation to a relevant gas fitting or any check of a gas appliance or flue carried out pursuant to paragraphs (2) or (3) above is carried out by, or by an employee of, a member of a class of persons approved for the time being by the Health and Safety Executive for the purposes of regulation 3(3) of these Regulations.” Source
• HSE leaflet INDG285 — “The engineer should be able to provide you with a current ID card.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(6)(a) — “a copy of the record made pursuant to the requirements of paragraph (3)(c) above is given to each existing tenant of premises to which the record relates within 28 days of the date of the check” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(6)(b) — “a copy of the last record made in respect of each appliance or flue is given to any new tenant of premises to which the record relates before that tenant occupies those premises” Source
• HSE guidance on electronic gas safety records — “Yes, if your tenant is happy to receive their copy electronically and can access it in this way.” Source
• Safety Clarity gas safety inspection guide — “Inspection duration varies based on property size and complexity.” Source
• Checkatrade gas safety certificate cost guide — “The average cost of a gas safety certificate in the UK ranges between £60 and £90, with an average UK cost of around £80.” Source
• CertNudge CP12 cost guide — “A CP12 costs £60–£120 for a standard single-boiler check, plus £15–£35 per extra appliance.” Source
• GOV.UK business tenant responsibilities — “gas safety - you must maintain equipment according to the manufacturer's instructions, which could mean an annual inspection by a registered gas safety engineer to make sure appliances and pipework are safe” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 36(1) — “except that it shall not include any gas appliance or installation pipework exclusively used in a part of premises occupied for non-residential purposes” Source
• Wilson Browne commercial property guidance — “The lease will specify whether the landlord or the tenant has responsibility for gas safety.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 34(1) — “The responsible person for any premises shall not use a gas appliance or permit a gas appliance to be used if at any time he knows or has reason to suspect that it cannot be used without constituting a danger to any person.” Source
• Gas Safety (Installation and Use) Regulations 1998, regulation 34(3) — “Any person engaged in carrying out any work in relation to a gas main, service pipe, service pipework, gas storage vessel or gas fitting who knows or has reason to suspect that any gas appliance cannot be used without constituting a danger to any person shall forthwith take all reasonably practicable steps to inform the responsible person” Source
• IGEM/G/11 Gas Industry Unsafe Situations Procedure — “With the permission of the gas user/responsible person, immediately disconnect and seal the gas supply to the appliance/installation with an appropriate fitting.” Source
• Gas Safety (Rights of Entry) Regulations 1996, explanatory note — “These Regulations confer rights of entry upon "public gas transporters" and "relevant authorities" to enter premises for the purpose of preventing gas escapes, the examination and disconnection of "gas fittings" and other related purposes.” Source
• RIDDOR 2013, regulation 11(2) — “the approved person must send a report of that information to the Executive in an approved manner within 14 days of acquiring that information.” Source
• HSE leaflet INDG285 — “In no circumstances should you reconnect an appliance that you have been told is unsafe, which has either been isolated or disconnected for safety reasons, until the fault has been rectified.” Source
• HSE landlord FAQ on disconnected heating — “If a heating appliance has been disconnected then you must provide your tenant with emergency heating, for more information on this contact your local authority whilst arranging for appropriate remedial work by a Gas Safe registered engineer.” Source