If you let out a property with gas in it, this one isn’t optional.
What’s required
Every gas appliance and flue you provide in a rented property has to be safety checked by a Gas Safe registered engineer every 12 months. You keep a record of the check, and your tenant gets a copy.
People call the record a gas safety certificate, a landlord certificate or a CP12. They all mean the same thing.
The timings:
- Existing tenants get a copy within 28 days of the check
- New tenants get a copy before they move in
- You keep the records for at least two years
You can have the check done up to two months before the current one runs out and keep the same renewal date, so there’s no need to leave it to the last week.
It covers more than the boiler
It’s every gas appliance you provide, not just the heating:
- The boiler
- A gas cooker or hob
- A gas fire
- Any other gas appliance you’ve supplied
If a tenant brought their own gas cooker, the cooker itself isn’t yours to certify, but the pipework to it is.
A certificate isn’t a service
The safety check confirms everything is safe on the day, which is what the law requires. A service is more thorough, and it’s what helps stop the boiler breaking down on a tenant in February. The two can be done on the same visit.
Price
A landlord gas safety certificate is £55 in Newport, and a bit more further out to cover the travel. I’m registered for boilers, cookers and gas fires, so one visit can cover the lot.
If you’ve got more than one property, put them all on the form and we can line the dates up.
Last updated September 2026
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