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How Often Should You Have Your Boiler Serviced?

How Often Should You Have Your Boiler Serviced?
1 September 2026

By MasterGas Heating Services Ltd

How Often Should You Have Your Boiler Serviced?

A boiler that starts reliably is not necessarily a boiler that has been checked recently. Deciding when to arrange a service is less about waiting for a fault and more about following the appliance’s instructions, keeping a clear record and understanding whether landlord requirements apply.

Start with the boiler’s service instructions

For most homeowners, an annual service is the practical starting point. Before booking, check the boiler manual or the service information supplied with the appliance. The manufacturer’s instructions are the best guide to the recommended interval for that particular model. If you cannot find the paperwork, note down the make and model from the boiler casing and ask a Gas Safe registered engineer to help identify the relevant guidance.

Avoid extending the interval simply because the boiler seems to be working normally. A service is a planned inspection, not a response to a noise, fault code or loss of heating. Some problems may not be obvious during everyday use, and a service gives an engineer the opportunity to assess the appliance rather than relying on how it feels to the person using it.

If you have recently moved into a property and cannot establish when the boiler was last serviced, do not assume the previous owner’s routine is up to date. Find any service record or ask the previous owner, landlord or managing agent. If there is no reliable record, arrange a service and keep the new paperwork so you have a clear date for the next decision.

Treat a fault as a separate reason to act

A scheduled service and a repair answer different needs. Servicing is planned maintenance. If the boiler develops a fault, repeatedly loses pressure, displays an error or behaves differently, do not wait for the next routine service to raise it. Contact a qualified heating engineer for advice about the fault.

Equally, booking a service does not mean a repair will be carried out as part of that visit. If the engineer identifies a problem, ask what has been found, whether the boiler can safely remain in use and what work is recommended. That keeps the decision based on the actual condition of the appliance, rather than treating every service as a repair or assuming a service will prevent every breakdown.

If you rent out the property, separate the two duties

A landlord gas safety check is not simply another name for a boiler service. We recommend checking which gas safety checks and records apply to your situation if you let a property. Boiler servicing can be useful alongside that check, but make sure you know which work has been completed and what documentation you have received.

When arranging work for a rented home, tell the engineer that the property is let and clarify whether you need a service, a landlord gas safety check or both. This avoids relying on paperwork that records a different job from the one you need. Keep the documents together and note the dates so the next booking is not based on memory.

Make the next date easy to establish

Once the service has been completed, keep the service record with the boiler manual or in a clearly labelled digital folder. Write down the date and set a reminder based on the manufacturer’s instructions. If you cannot tell what interval applies, ask the engineer to explain the recommendation for your model and make a note of it.

This simple record is especially useful if the property changes hands, is rented out or has more than one person arranging maintenance. It gives the next engineer a starting point and helps you distinguish a routine service from an earlier repair visit.

For homeowners in Great Barr, West Bromwich and nearby areas, we provide boiler servicing. We are Gas Safe registered, and if you want to see the service overview before arranging a visit, read our Boiler Servicing page.

Get in touch with our team for a free, no-obligation quote.