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Is an Annual Boiler Service Really Worth It?
Skipping a service to save money is one of the most expensive shortcuts a homeowner can take. Here is exactly what a service does and why it pays off.
Omar Haddad
Service Manager15 Jul 2026Updated: 15 Jul 20264 min read
Key takeaways
Reading time — 4 min
Expert reviewed — Practical guidance from our heating team
An annual service feels easy to postpone — until a small, cheap fault grows into a breakdown. Here is what a proper service covers and why every manufacturer insists on it.
What a real service includes
- A full combustion and flue-gas analysis to confirm the boiler is burning safely and efficiently.
- Inspection of seals, the heat exchanger and electrical connections for early wear.
- A carbon-monoxide safety check — the single most important reason never to skip it.
- Cleaning key components so the boiler runs at its rated efficiency.
Three reasons it pays for itself
- It keeps your warranty valid. Most manufacturers void cover without proof of annual servicing.
- It catches faults early, when they are cheap to fix rather than emergencies.
- It protects your family from carbon monoxide, which is colourless and odourless.