How Often Should a Boiler Be Serviced?
Once a year — and here's why, plus what it means for your warranty and, if you're a landlord, your legal duties. Gas Safe 587401 across East London. Call 07927 882561.
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Upfront cost — no obligation The simple answer is once a year, by a Gas Safe registered engineer. Here is why annual servicing matters, how it protects your warranty, what landlords need to know, and the signs your boiler is overdue.
Annually — and why
Manufacturers recommend a boiler service every twelve months, and there are good reasons beyond ticking a box. Over a year, seals wear, pressure can drift, and sludge can start to build in the system. An annual service catches these early, keeps the boiler burning efficiently so you are not wasting gas, and confirms it is safe. Leaving it longer lets small issues grow into breakdowns.
Manufacturers recommend a boiler service every twelve months, and there are good reasons beyond ticking a box.
Servicing and your warranty
If your boiler is under a manufacturer’s warranty, an annual service by a Gas Safe registered engineer is almost always a condition of keeping that warranty valid. Miss a service and a manufacturer can decline a warranty claim. We give you a service record each year so you always have proof.
If your boiler is under a manufacturer’s warranty, an annual service by a Gas Safe registered engineer is almost always a condition of keeping that…
Landlords — servicing vs the CP12
For rental properties, an annual boiler service is good practice, but it is separate from your legal obligation as a landlord: a Landlord Gas Safety Certificate (CP12) must be carried out every twelve months on the gas appliances you provide. We can do both in the same visit to keep your properties safe and compliant.
For rental properties, an annual boiler service is good practice, but it is separate from your legal obligation as a landlord: a Landlord Gas Safety…
Signs your boiler is overdue
Even between services, watch for warning signs: rising gas bills, banging or gurgling noises, radiators slow to warm, a boiler that keeps losing pressure, or a yellow rather than blue flame. Any of these means it is worth booking a service sooner rather than later.
Even between services, watch for warning signs: rising gas bills, banging or gurgling noises, radiators slow to warm, a boiler that keeps losing pressure…
Frequently Asked Questions
How often should a boiler be serviced?
Once a year, by a Gas Safe registered engineer. It keeps the boiler safe and efficient and usually keeps your warranty valid.
What happens if I don't service my boiler?
Efficiency drops, small faults go unnoticed and can become breakdowns, and you may invalidate your manufacturer's warranty.
Is annual servicing a legal requirement?
For a homeowner it is not a legal requirement, but it is strongly recommended and often required for warranty. For landlords, an annual Landlord Gas Safety Certificate (CP12) is a legal requirement.
When is the best time to service my boiler?
Late summer or early autumn is ideal, so any issues are fixed before you rely on the heating in winter.
What Our Customers Say
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“Had a boiler installed and got the best service at a good price from Julhas in Dagenham. Highly recommended.”
Russell Smith | Dagenham, Essex
“For my property in Rainham I used Gas First for a landlord gas safety record. They completed the job in time and arranged the appointment with our tenant. Fast, efficient service and a fair price. Will use them next year.”
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