Find a verified Oil Boiler Installer in Ireland
OFTEC-registered oil boiler installs and replacements. Tank, pipework, and commissioning all included.
What does a oil boiler installer do?
An oil boiler replacement swaps an existing oil-fired boiler for a new high-efficiency condensing oil unit. Oil heating remains common in rural and outer-Ireland homes that aren't on the gas mains. A typical replacement involves removing the old unit, fitting the new boiler (internal or external cabinet model), upgrading the oil supply line if needed, fitting an oil filter and fire valve, flushing the heating system, and commissioning to comply with current OFTEC standards.
Oil boilers are typically replaced every 15–20 years, sooner if maintenance has been patchy. Newer oil boilers are 90–93% efficient vs 60–80% for pre-2000 units, with significant fuel cost savings. SEAI offers grants for oil-to-heat-pump conversions but not for direct oil-to-oil swaps — many homeowners swap like-for-like for now and convert to a heat pump in a few years when the home insulation is brought up to standard.
Common oil boiler installer services
From routine fixes to bigger projects — here's what Irish oil boiler installers on Jobiit typically handle.
- External oil boiler replacement
- Internal utility-room oil boiler swap
- Oil tank replacement or relocation
- Oil supply line upgrade
- Fire valve and filter install
- Power flush and magnetic filter
- Smart thermostat install
- Zone valve upgrade
- OFTEC commissioning certificate
- Warranty registration
How much does a oil boiler installer cost in Ireland?
Indicative pricing — your actual quote will vary
Oil boiler replacement varies by boiler type (internal vs external) and brand. The figures below are indicative ranges fitted, including disposal of the old unit.
A like-for-like external oil boiler swap typically runs €2,500–€3,800 with a mainstream brand (Grant, Firebird, Worcester Bosch, Warmflow). Internal utility-room swaps are €2,200–€3,500. Adding an oil tank replacement is €1,200–€2,200 depending on tank size. A complete package — boiler, tank swap, system flush, smart controls — typically lands €4,200–€6,800. SEAI does not currently offer grants for oil-to-oil swaps; if you're considering oil-to-heat-pump, separate grant pathways apply.
These are indicative ranges based on typical Irish jobs. Final pricing depends on scope, materials, urgency, and the trader you choose. On Jobiit you'll receive itemised quotes (labour, materials, VAT) so there are no surprises.
Why hire your oil boiler installer through Jobiit
We built Jobiit to fix what's broken about finding tradespeople in Ireland.
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Every trader on Jobiit is ID-checked, has valid insurance, and is reviewed by real customers before they can quote.
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Pay through the app or using tap-to-pay, securely with Stripe.
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How we vet every trader
- 1
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Every trader passes a government-issued ID check before they can quote on jobs.
- 2
Insurance & qualifications
Public liability insurance, trade-specific qualifications, and registrations are validated and kept current.
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Reviews can only be left after a paid, completed job. No anonymous ratings.
- 4
Dispute resolution
In-app dispute process with mediation by our support team if you and your trader can't agree.
Oil Boiler Installers across Ireland
Jobiit covers the whole of Ireland. Wherever you are, local oil boiler installers are quoting on jobs near you.
- Dublin
- Cork
- Galway
- Limerick
- Waterford
- Drogheda
- Swords
- Dundalk
- Bray
- Navan
- Kilkenny
- Sligo
Oil Boiler Installer FAQs
Should I replace my oil boiler or convert to a heat pump?
It depends on the home and your timeline. If the existing boiler is failing and your home isn't yet at B2 BER, a like-for-like oil swap buys you 5–10 years to insulate and prepare for heat pump conversion. If the home is already well-insulated and air-tight, going straight to a heat pump captures full SEAI grant funding and lower running costs immediately. Most installers can model both options for you.
How long does an oil boiler installation take?
A standard external oil boiler replacement takes 1–2 days on site. Internal swaps are similar. If the oil tank also needs replacing, allow another half-day. Hot water is typically off for 4–8 hours during the swap. Your installer should provide a written schedule and stage the work to minimise disruption — for instance, finishing the boiler change before disturbing hot water.
Do I need a new oil tank?
Not always. Oil tanks last 20–30 years if maintained. Signs you need replacement: visible rust on a steel tank, plastic tank UV degradation or cracking, leaks at the tap or connections, tank below current building regs siting (1.8m from buildings, 760mm from boundaries). If your tank is original to the house and pre-2000, factor a replacement into the boiler quote.
How efficient are modern oil boilers vs old ones?
Pre-2000 oil boilers typically run 65–80% efficient — meaning 20–35% of fuel is wasted out the flue. Modern condensing oil boilers (post-2018) run 90–93% efficient. On a typical home using €2,000 of oil per year, that's a saving of €200–€500 annually from boiler upgrade alone. Pair with smart controls and a system flush for further 5–15% gains.
Who can install oil boilers in Ireland?
Oil boiler installers in Ireland should be OFTEC-registered (Oil Firing Technical Association). OFTEC registration confirms competency, insurance, and ongoing training on oil heating systems. After install, the technician issues a CD/10 commissioning certificate which you need for any future warranty claim and for property sale paperwork. Always ask for the OFTEC ID number and check on oftec.org.
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