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Landlord gas safety

Gas Safety Certificate vs Boiler Service: What Landlords Actually Need

Landlords often assume a gas safety certificate and a boiler service are the same job. They’re not — one is a legal safety check, the other is maintenance — and knowing the difference saves money and hassle.

At a glance

  • The gas safety check is a legal duty; a service is not.
  • The check confirms appliances are safe; a service keeps the boiler reliable.
  • A service also protects the boiler’s warranty.
  • Many landlords book both in one visit.

What the gas safety check is

The annual gas safety check confirms your gas appliances and flues are safe to use, and produces the record (the CP12) you’re legally required to hold and share with tenants. It’s about safety and compliance.

What a boiler service is

A service is maintenance — cleaning and checking the boiler’s components so it runs efficiently and reliably. It isn’t legally required for landlords, but it reduces breakdowns and usually keeps the manufacturer’s warranty valid.

Why they’re easy to confuse

Both are annual, both involve a Gas Safe engineer, and both touch the boiler — but a safety check is not a service, and a quick “it’s safe” visit won’t maintain the appliance or satisfy a warranty. They’re complementary, not interchangeable.

Booking them together

Because the access and setup overlap, many landlords have the gas safety check and boiler service done in one visit — compliant and maintained in a single appointment, which is usually the most cost-effective way to do it.

Want the legal check and a proper service in one visit? We do both for landlords across South Manchester and Cheshire — compliant and well-maintained in one appointment.

See our landlord gas safety service

Common questions

No. The certificate is a legal safety check confirming appliances are safe; a service is maintenance that keeps the boiler efficient and reliable.

No — only the annual gas safety check is a legal duty. But a service reduces breakdowns and usually keeps the manufacturer’s warranty valid.

Yes, and many landlords do — it’s usually the most cost-effective way, as the access and setup overlap.

No — it confirms safety but doesn’t clean or maintain the appliance. That’s what a service does.