CP12 — Gas Safety Records
It's the law. We make it easy.
Under the Gas Safety (Installation and Use) Regulations 1998, every private landlord in England, Scotland and Wales is legally required to have all gas appliances, pipework and flues in their rental property checked annually by a Gas Safe registered engineer. This applies whether you're renting out one flat or a hundred properties.
Your legal obligations as a landlord
You must arrange an annual gas safety check for every gas appliance and flue in your rental property. On completion, your engineer issues a Gas Safety Record (CP12), which you must give to existing tenants within 28 days and to new tenants before they move in. You must keep a copy for at least two years. Gas Safe Register — landlord responsibilities →
What happens if you don't comply?
Non-compliance is taken seriously by the Health and Safety Executive (HSE). The consequences go well beyond a fine.
Unlimited finesThere is no cap on the fine the HSE can impose for gas safety violations in a rented property.
Up to 6 months' imprisonmentIn serious cases, landlords can face criminal prosecution and a custodial sentence.
Invalidated landlord insuranceNon-compliance can void your landlord insurance and expose you to civil claims from tenants.
What a CP12 inspection covers
Our Gas Safe engineers carry out a thorough inspection of every gas appliance and installation in the property:
- All gas appliances — boilers, cookers, gas fires, water heaters
- Gas pipework — integrity, condition and routing
- Flues and ventilation — checked for blockages and safe operation
- Gas pressure and flow rate at each appliance
- Combustion performance and flue gas analysis
- Safety devices — flame failure, overheat protection
- Visual inspection for any unsafe situations
- Formal Gas Safety Record (CP12) issued on completion
Why landlords choose N4 Gas
Automatic renewal reminders
We track your CP12 expiry dates and contact you before they fall due — taking the admin off your plate entirely.
Multi-property management
Managing a portfolio? We coordinate visits across multiple properties and keep records in order for each one.
Same-day digital certificates
CP12 certificates issued digitally the same day — easy to forward to tenants and store securely.
Tenant coordination
We're happy to liaise directly with your tenants to arrange access, saving you the back-and-forth entirely.
Access arrangements — using keys
Happy to use keys. In many cases, landlords hold a set of keys for the property. Provided your tenant has given permission in writing for us to enter, we're happy to arrange the inspection using keys held by you or your letting agent — meaning neither you nor your tenant needs to be present. This makes scheduling much simpler for managed properties and portfolios. Just let us know when booking and we'll confirm the arrangement with you.
Serving the CP12 to your tenant
Once issued, you are legally required to:
- Give a copy to existing tenants within 28 days of the inspection
- Give a copy to new tenants before they move in
- Retain your own copy for at least two years
We issue certificates digitally, making it straightforward to forward directly to your tenant by email. We also offer a certificate lookup so you can retrieve any certificate we've issued at any time.