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Boiler Servicing

Belfast boiler servicing,
from £95 a year.

Annual gas and oil boiler servicing including your gas safety certificate. Same-week appointments across Belfast, Lisburn and Bangor.

Gas boiler serviced in Belfast

Every service

What's included.

A proper service isn't a visual check. These eight steps are standard on every boiler installers service.

  1. 01 Flue gas analysis and combustion check
  2. 02 Pressure and expansion vessel check
  3. 03 Heat exchanger clean-down
  4. 04 Condensate trap inspection and clean
  5. 05 Seal, case and casing inspection
  6. 06 Gas safety certificate issued
  7. 07 Written report with recommendations
  8. 08 Photos of any faults found

Pricing

Prices up front.

No surprise bills. Installers agree the price before the spanner comes out. Final quote confirmed on phone consultation.

Gas boiler service
from £110
Oil boiler service (OFTEC)
from £110
Landlord gas safety certificate (CP12)
from £110
Service + minor repair
from £120

All prices include VAT. Final quote confirmed on phone consultation.


Why service annually

The bill you want to avoid is the one you didn't see coming.

The cost of an annual service is small compared to a breakdown in February. A service catches a worn diverter valve, a sticky pressure sensor or a dirty heat exchanger before any of it becomes a hundred-quid emergency call-out on a Saturday night.

Nearly every boiler manufacturer requires annual servicing to keep the warranty valid. If yours is under five years old and you skip a service, a claim against a fault will usually be refused.

For landlords, a gas safety certificate is a legal requirement in Northern Ireland. The installer issues the certificate on the day, and installers keep a record so your next year's reminder comes through automatically.

Related: when should I replace my boiler?

Boiler brands installers service

Installers on our network service every major boiler brand.

Worcester BoschVaillantIdealWarmflowBaxi

If your boiler brand isn't listed, call us, installers service most domestic boilers sold in the UK and Ireland.

Recent services

Recent service jobs.

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Worcester Bosch service

Lisburn April 2026
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Vaillant service + CP12

BT15 Belfast April 2026
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Ideal service + minor repair

Bangor March 2026

Questions

Boiler servicing FAQ.

How long does a boiler service take?

A standard gas boiler service takes around 45 to 60 minutes. Oil boilers take a little longer, typically 60 to 90 minutes. If the installer finds a fault that needs repair on the day, we'll agree the cost with you before we start.

How much does a boiler service cost in Belfast?

Gas boiler services on our network start at £95 including your gas safety certificate. Oil boiler services start at £95. A landlord CP12 certificate on its own is from £90. All prices include VAT and a written report.

Do I need to service my boiler every year?

Yes. Almost every manufacturer warranty requires an annual service to remain valid. Annual servicing also catches small issues early, keeps your efficiency up and reduces your gas bill, and it's a legal requirement if you rent out the property.

What happens if my boiler fails the service?

If the installer finds a safety issue, we'll explain it clearly and give you a fixed price for the repair. Nothing proceeds without your written agreement. If the boiler isn't safe to use, we'll classify it 'At Risk' or 'Immediately Dangerous' and talk you through your options.

Do you service oil boilers too?

Yes. Every installer is OFTEC registered for oil-fired boilers and service a wide range of makes including Warmflow, Grant, Worcester Heatslave and Firebird.

Are you Gas Safe registered?

Yes. Our Every installer is Gas Safe registered in their own name. You can verify us on the Gas Safe Register at any time. We're also City & Guilds qualified and OFTEC registered with over 10+ years on the tools.


Where installers service

Boiler servicing across Greater Belfast.

Installers on our network service boilers in Lisburn, Newtownabbey, Bangor, Ballymena and Belfast and the surrounding twenty miles.

Never miss a service

We'll text you when it's due.

Your boiler is due every twelve months. Add your number and we'll text you when it's time. No spam, one message a year.

Book a service

Book your boiler service.

Same-week appointments across Belfast, Lisburn and Bangor. Or call us on emergency request.

We respond the same working day. For anything urgent, send an emergency request.

Get a quote Emergency