News > Landlord Gas Safety Certificates (CP12): What the Law Requires

Landlord Gas Safety Certificates (CP12): What the Law Requires

Renting out a property? Gas safety is the law

If you let a property in Norwich or anywhere in the UK, you have specific legal duties around gas safety. Getting them wrong is not just risky for your tenants, it is a criminal offence. Here is what the law actually requires, explained plainly.

What is a CP12?

A “CP12” is the everyday name for a Landlord Gas Safety Record. It is the written record a Gas Safe registered engineer produces after inspecting the gas appliances, fittings, flues and associated pipework that you provide in a rented property.

The CP12 confirms those items were checked and were safe at the time of inspection. It is not optional paperwork, it is the evidence that you have met your legal duty.

The legal framework

Landlord gas safety duties are set out in the Gas Safety (Installation and Use) Regulations 1998, in particular regulation 36. These regulations are enforced by the Health and Safety Executive (HSE), and you can read the official guidance on the HSE website at hse.gov.uk.

In short, as a landlord you must:

  • Ensure gas appliances, fittings and flues you provide are maintained in a safe condition.
  • Arrange an annual gas safety check on each appliance and flue.
  • Keep records of those checks and provide copies to your tenants.
  • Use a Gas Safe registered engineer for all of this work. This is a legal requirement, not a recommendation.

The annual check: timing matters

According to the HSE, a gas safety check must be carried out within 12 months of a new appliance or flue being installed, and annually thereafter.

A helpful rule introduced by the 2018 amendment to the regulations gives you some flexibility: you can have the annual check carried out up to two months before the deadline, and still keep the original deadline date as if the check had been done exactly 12 months after the previous one. This means you can renew early without losing days off your cycle, which makes scheduling much easier.

Be aware there is no grace period once a certificate has expired. An out-of-date record, even by a single day, is a breach of the regulations.

Giving tenants their copy

Providing the record to tenants is a legal duty in its own right, not an afterthought. The HSE requires that you:

  • Issue a copy of the gas safety record to each existing tenant within 28 days of the check being completed.
  • Issue a copy to any new tenant before they move in.

For tenancies in England, the record also needs to be provided in line with wider requirements that affect matters such as serving notice, so keeping clean, timely records protects you in more ways than one.

Keeping records

You must keep a record of each safety check for at least two years. Good record-keeping is your best protection if a dispute or investigation ever arises, so store copies securely and keep a simple log of check dates and renewal deadlines for each property.

What the check covers

A Gas Safe registered engineer inspecting your property will typically:

  • Check that appliances are burning correctly and safely.
  • Test that flues and chimneys are clearing products of combustion properly.
  • Check gas pressure and that safety devices are working.
  • Inspect for adequate ventilation.

If an appliance is found to be unsafe, the engineer will advise on what needs to happen. You are responsible for the appliances and flues you provide; tenants’ own gas appliances are generally their responsibility, though the connecting pipework may still fall to you.

The consequences of getting it wrong

This is where landlords need to take the rules seriously. Failing to carry out checks, provide records or keep documentation is a criminal offence under the 1998 Regulations. Penalties can include unlimited fines and, in serious cases, imprisonment. Beyond the legal risk, faulty gas appliances can cause carbon monoxide poisoning, fires and explosions, so these duties exist to keep people safe.

A simple compliance checklist

  • Book the annual gas safety check in good time, using the two-month early window if it helps.
  • Only ever use a Gas Safe registered engineer.
  • Give existing tenants a copy within 28 days, and new tenants a copy before move-in.
  • Keep every record for at least two years.
  • Track renewal dates so nothing lapses.

Staying compliant is far simpler when you have a reliable local engineer managing your annual checks and reminding you when renewals are due.

Book your landlord gas safety check with Norfolk Heating Ltd

Our Gas Safe registered engineers carry out landlord gas safety checks across Norwich and Norfolk, provide your CP12 promptly and help you stay on top of renewal dates. Call 07751 261207, email enquiries@norfolkheatingltd.co.uk, or visit Prestige House, Avian Way, Norwich NR7 9AR. We are open Monday to Friday, 7:30am to 5:00pm. This article is general guidance only; always check the current HSE and gov.uk guidance for your specific circumstances.

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