Gas ServicesGas, plumbing and heating
Boiler servicing

How often should a boiler be serviced?

A practical guide to annual boiler servicing, warranty expectations and the signs that a service should not wait.

4 min read

Engineer checking heating controls during a boiler service
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The simple answer

Most domestic boilers should be serviced every 12 months. Annual servicing helps keep safety checks current, supports efficiency and is often needed for warranty evidence.

What a proper service checks

A careful visit looks at appliance condition, flue arrangement, ventilation, combustion, pressure, controls and visible signs of wear or leakage.

When to book sooner

Do not wait for the annual date if the boiler is noisy, losing pressure, leaking, showing fault codes or struggling to provide heating and hot water.

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