When someone asks whether their boiler is registered, they usually mean one of two things. Either they want to know the installation was notified properly, so it is legal and will not cause trouble when they sell the house; or they want to know the manufacturer warranty is active. They are separate records held by separate organisations.
It is also easy to confuse both with a third thing — checking that the engineer is on the Gas Safe Register. That is about the person, not the appliance, and we cover it in its own guide.
The two registrations every new boiler needs
Building Regulations notification
Installing a gas boiler is notifiable work. A Gas Safe registered installer notifies it, and the homeowner should then receive a Building Regulations compliance certificate by post.
- Proves the installation was notified
- Asked for by conveyancers when you sell
- Missing certificate? Ask the installer first
Manufacturer warranty registration
Most manufacturers require the boiler to be registered with them, usually within a set period, for the full warranty to apply. The installer often does this, but not always.
- Check the manufacturer's website or call them
- Have the serial number from the boiler label ready
- Warranty terms often require annual servicing
Checking in practice
- 1
Find the serial number
It is on a data label, often under the boiler or behind the front panel flap. Photograph it so you don't have to look again.
- 2
Look for the compliance certificate
It should have arrived by post some weeks after installation. If it is missing, the Gas Safe Register can reissue certificates for notified work.
- 3
Check the warranty status
Manufacturers such as Worcester Bosch let you register or check a boiler through their own website or customer line.
- 4
Keep the Benchmark checklist
The commissioning checklist in the back of the manual should be filled in and signed by the installer, with service records added each year.
If something is missing
Start with the installer. Registration is their responsibility and a genuine oversight is usually easy to put right. If they cannot be reached, the Gas Safe Register can tell you whether the work was notified, and the manufacturer can tell you about warranty registration.
If the work was never notified, that is a more serious problem, because it may mean it was not done by a registered engineer. In that case, have a Gas Safe registered engineer check the installation before you keep relying on it.
Moving house or buying one
If you are buying a home, ask the seller for the compliance certificate, the Benchmark checklist and the service history for any boiler fitted in recent years. Missing paperwork is not always a sign of bad work, but it is a sign to ask questions before exchange rather than after. If you are selling, gather the same documents early. Requesting a replacement certificate takes time, and it is much easier to sort before a buyer's solicitor asks. Keep digital copies alongside the paper ones so that the next owner, or the next engineer, can see exactly what was installed and when it was last serviced.
Questions about a boiler we fitted?
Call 07891 410 960, Monday to Saturday 8am to 5pm, and we will help you find the paperwork.
Two records, two places to check: the compliance certificate for the installation and the manufacturer's record for the warranty. Five minutes with the serial number tells you where you stand.