Gas Safe RegisterOFTECRegistered engineers
Located in Belfast, servicing all of Northern Ireland[email protected][email protected]
blueprintBOILER SERVICES
[email protected][email protected]Book a service

Gas boiler service by a Gas Safe registered engineer

A full gas boiler service for £79, done to your manufacturer's checklist, with the flue gas readings recorded and sent to you.

Choose your preferred window. We confirm your exact slot by phone.

Book a serviceFrom £79Including VAT
Engineer checking the pump and controls during a boiler service: Gas boiler service by a Gas Safe registered engineer

A gas boiler service near you, at a fixed price

A gas boiler service with Blueprint costs £79, including VAT. That price covers the full annual service to the manufacturer’s specification, the flue gas analysis and your digital service record. It is the same whether you have a combi, a system boiler or a regular boiler with a hot water cylinder.

You can see it, book it and get a confirmation without waiting for anyone to ring you back. New customers are welcome.

By law, only a Gas Safe registered engineer can work on gas appliances in Northern Ireland. Our Gas Safe registration number is To confirm: gasSafe. You can check it on the Gas Safe Register website before your visit, and the engineer will carry their ID card.

What’s included in a gas boiler service

Every manufacturer publishes a service procedure for its boilers. We work to it, model by model. These are the checks on every gas service.

  • Visual safety check of the boiler, pipework and flue
  • Flue checked for correct route, support, termination and clearances
  • Case and case seal inspected so combustion gases cannot escape into the room
  • Burner and heat exchanger inspected, and cleaned where the manufacturer specifies
  • Flue gas analysis with a calibrated analyser, checking combustion and carbon monoxide levels
  • Gas rate and burner pressure checked against the boiler’s data plate
  • Gas tightness checked at the appliance
  • Safety devices tested, including flame detection and overheat protection
  • Condensate trap cleaned and condensate pipe checked
  • System pressure and expansion vessel charge checked
  • Controls, thermostat and programmer tested
  • Ventilation checked where the appliance needs it
  • Carbon monoxide alarm presence checked, with advice if one is missing
  • Digital service record with the readings, sent to you

People often mix these up. A gas safety check confirms that gas appliances are safe to use: it checks for leaks, correct burning and a working flue. It is what landlords must have every year. A boiler service goes further: the boiler is opened up, cleaned and set to the manufacturer’s specification, so it keeps running efficiently and the warranty stays valid.

Every Blueprint gas service includes the safety checks. If you are a landlord and need the gas safety record as well, ask for the combined visit.

Carbon monoxide

Carbon monoxide has no smell or colour, and a boiler that is burning badly can produce it without any obvious sign. The flue gas analysis on every service is the main way to catch it, because it measures what the boiler is actually producing.

We also check you have a working carbon monoxide alarm. If you do not, we recommend fitting one in the room with the boiler and in bedrooms near any gas appliance. Headaches, dizziness or nausea that ease when you leave the house can be a sign of carbon monoxide: turn appliances off, get fresh air and call 0800 002 001.

Combi boilers heat water on demand and have no cylinder. We check the hot water side as well as the heating, including the plate heat exchanger’s performance, since scale is a common cause of poor hot water.

System boilers work with a sealed system and a hot water cylinder. We check the pump, the pressure and the expansion vessel, which keeps the system pressure steady.

Regular boilers (also called heat-only or conventional) usually have a feed and expansion tank in the roof space. We check the boiler and controls, and tell you if anything we can see in the wider system needs attention.

We service all common makes of gas boiler, including Worcester Bosch, Vaillant, Ideal, Baxi, Viessmann, Glow-worm, Potterton and Alpha. If you have an older or less common boiler, tell us the make and model when you book so we can bring the right parts. To confirm: confirm any makes not serviced

Northern Ireland has three natural gas networks. Greater Belfast and Larne are on the Phoenix Natural Gas network. Towns such as Ballymena, Coleraine, Newry and Portadown, plus Derry/Londonderry, are on the firmus energy network. Parts of the west, including Dungannon, Omagh and Enniskillen, are on the SGN Natural Gas network. The network owns the pipes and the meter; your boiler and everything after the meter is yours, and that is what we service.

If you smell gas, leave the property, do not use switches or flames, and call the Northern Ireland Gas Emergency Service on 0800 002 001.

If your home is off the mains gas network and runs on LPG from a tank or bottles, we service that too. An LPG boiler service is £89. The checklist mirrors natural gas, with extra checks on the regulator and supply.

Add a heating system check to your service for £30. Allow about 20 minutes on top of the service. We check every radiator for cold spots and signs of sludge, test thermostatic and lockshield valves, check and set the system pressure, and review your timer and thermostat settings.

The check does not include repairs or sludge removal. If we find something that needs work, we explain it and quote before doing anything extra. Choose it as an optional add-on when you book.

  • Choose gas (or LPG) on the booking form.
  • See the price and pick a slot. The price is on screen before you give any details.
  • Get confirmation by email, with the date, the time window and the price.

On the day, your engineer arrives in the agreed window, explains what they are about to do and gets started. A gas service takes about 45 minutes. All we need is clear access to the boiler and the controls.

Prefer to talk? Email [email protected].

  • Your record. Your service record is emailed the same day, listing every check, the readings and any parts replaced. Keep it for your warranty and for selling the house.
  • If we find a fault. We explain it in plain terms. If something is unsafe, we make it safe, as the gas safety rules require, and tell you why. Any repair is priced before work starts.
  • Next year. We send you a reminder before your next service is due.

If you let a property, you need a gas safety record every 12 months. We can do the boiler service and the gas safety record in one visit for £119 per property. See landlord gas safety certificates.

The Blueprint Service Plan includes your annual gas service, booked for you, for £72 a year paid up front, compared with £79 one-off. You get 15% off repair labour, 10% off parts and first pick of repair slots on best endeavours. Repairs are always charged. See boiler care plans.

Choose gas, see the price, pick a slot. If you would like to compare fuels or see every price we charge, the price list has them all on one page.

A clear plan, from booking to record.

Three steps to a boiler serviced to its manufacturer’s spec, with nothing to chase.

  1. Choose your service

    Pick your fuel and see the fixed price before giving us your details.

  2. Agree your visit

    Choose the day and arrival window that suit you. We confirm your exact slot by phone.

  3. Get your service record

    The engineer follows the manufacturer’s checklist and emails your service record the same day.

Before we call round.

The details that make booking a little clearer.

Still stuck? Call.

Talk through your boiler, your service or your plan.

[email protected][email protected]Send us a message
What is the going rate for a gas boiler service?
Most Northern Ireland firms charge somewhere between about £45 and £96 for a basic gas service. Ours is £79, fixed and published, including VAT and the flue gas analysis.
The same as any other gas boiler: £79. We follow Worcester Bosch's own service checklist, and the price does not change by make or model.
No. The annual gas safety record is a legal requirement for landlords, not owner-occupiers. Homeowners are still advised to have gas appliances checked every year, and a service does that for the boiler.
Yes. An LPG boiler service is £89. The checklist is close to natural gas, with checks specific to the LPG supply and regulator.
Tell us when you book and we will confirm whether we can include it and what it costs. To confirm: confirm add-on appliance checks and prices
Greater Belfast is on the Phoenix Natural Gas network, towns such as Ballymena, Coleraine, Newry and Portadown are on the firmus energy network, and parts of the west are on the SGN Natural Gas network. We service boilers on all of them.

Useful next steps.

Your boiler has a spec. We work to it.

Choose your service and a preferred arrival window. We confirm your exact slot by phone.

Book a service[email protected][email protected]