Boilers in Limerick: oil and gas heating, grants and installers

Quick answer: Limerick is an oil county: Census 2022 found 43.4% of households in Limerick City and County heat mainly with oil and 27.9% with gas. A gas boiler must be fitted by a Registered Gas Installer; an oil boiler has no statutory register, so ask for OFTEC. There is no grant for a new oil or gas boiler, but SEAI pays up to €12,500 towards a heat pump for a house.

In Limerick city you will find streets on the gas network and streets that are not, and once you leave the city most homes run on oil. That makes Limerick a good example of the choice many Irish households face in 2026: replace an ageing oil boiler like for like, switch to gas where a main is available, or move to a heat pump with a grant. This guide covers the local heating mix, who may do the work, what Limerick City and County Council does and the grants open now.

How Limerick homes are heated

Census 2022 central heating data for the Limerick City and County Council area (the CSO does not separate the city):

Main central heating fuel, Census 2022	Limerick City and County	Ireland
Oil	43.4%	38.9%
Natural gas	27.9%	32.7%
Electricity	10.4%	11.8%
Coal	5.0%	3.5%
Not stated	7.1%	5.0%

Coal is still the main heating fuel for 5.0% of Limerick households, well above the national 3.5%.

Who may work on your boiler

Any work on a natural gas or LPG installation in an Irish home must, by law, be carried out by a Registered Gas Installer (RGI). The register used to be called RGII (Registered Gas Installers of Ireland); it is now run by Safe Energy Ireland on behalf of the Commission for Regulation of Utilities (CRU), which appoints it as the Gas Safety Supervisory Body. When the job is finished, the RGI must give you a Declaration of Conformance certificate (also called a completion certificate), which records that the work is safe and to standard. You can look an installer up on the RGI scheme’s website before you book; see checking an RGI and the completion paperwork.

There is no statutory register for oil boiler technicians in the Republic of Ireland. OFTEC registration shows approved training and assessment; Selectra notes it is recommended rather than legally required. Replacing an oil boiler like for like is still allowed in an existing home, but SEAI does not fund it, and the Department of Housing says Part L of the Building Regulations has effectively phased out fossil fuel boilers in new dwellings (under 5% of new homes in 2023).

Limerick City and County Council’s role

The council does not license installers, but it matters in two ways. First, it administers the Housing Aid for Older People Grant for the whole city and county. Second, its Local Authority Climate Action Plan 2024–2029 sets out a policy of supporting district heating in the city and a feasibility study into district heating for Limerick city and its suburbs, and it has designated the Georgian core and the proposed Colbert Quarter as its decarbonising zone. None of that changes what you can do this year, but homeowners in the city centre may see heat network proposals before the rest of the county.

What the council can do

The council administers the Housing Aid for Older People Grant for people aged 66 and over living in poor housing conditions. It can pay to repair or replace central heating, up to €10,700 (100% of costs) where household income is up to €37,500, with lower rates up to an income of €75,000. Since 1 January 2025 it cannot buy a new oil or gas boiler, but it can repair an existing one or pay for electric or biomass heating.

You apply to Limerick City and County Council, not to SEAI, and it is worth including a report from a heating contractor describing the condition of the existing system, which Citizens Information says should accompany a heating application.

SEAI grants for Limerick homes

SEAI pays up to €12,500 towards a heat pump system in a house (€9,500 in an apartment): up to €6,500 for the heat pump, up to €2,000 for new radiators or underfloor heating where needed, and a €4,000 Renewable Heat Bonus for replacing an oil or gas boiler, solid fuel or storage heating. The home must have been built and occupied before 2021, and you need grant approval before work starts. The full table is in our Ireland boiler costs guide.

On 29 September 2026 the Government approved a new €2,000 boiler scrappage grant for homes built before 2021 that replace a fossil fuel heating system with a heat pump or other renewable heating. RTÉ reports that the scheme starts in the first quarter of 2027, while SEAI says homeowners with a heat pump grant application already in progress will receive the extra €2,000 automatically. That would take the maximum for a house to €14,500. There is still no SEAI grant for replacing a gas or oil boiler with another gas or oil boiler.

Owner-occupiers on a qualifying welfare payment in a home built before 2006 can apply to SEAI’s Warmer Homes Scheme for free upgrades after a survey; SEAI says the most common works are attic and wall insulation.

For a Limerick oil-heated house the heat pump sums look like this: a median installed cost of €16,000–€17,000 (SEAI, January to June 2026) against a grant of up to €12,500, plus €2,000 scrappage from early 2027. Insulation may be needed first; see heat pump or replacement gas boiler.

Typical prices

We have not found a price survey for this city alone, so these are national figures checked in September 2026: €2,300–€4,900 for a like-for-like gas boiler including VAT (Gasworks.ie), €2,900–€5,500 for a new oil boiler (Selectra), and a median €16,000–€17,000 for a heat pump in a house before grants (SEAI). See our Ireland boiler costs guide for the full table.

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How to choose an installer

Gas work: check the installer on the RGI register before they start, and ask for the Declaration of Conformance certificate when they finish.
Oil work: ask whether the technician is OFTEC-registered and what certificate or commissioning record they will leave.
Heat pumps and grants: use an SEAI-registered contractor or One Stop Shop, and do not start work until you have grant approval, because SEAI will not pay for work started before approval.
Oil or gas specialist? Many Limerick firms cover both; if yours does not, ask who will service the boiler afterwards.

Our guide to comparing boiler quotes like for like has a fuller checklist, and Ireland’s heating controls grant covers the €700 controls grant.

Gas, oil and heating installers in and around Limerick

These businesses appear in public business listings for Limerick and the surrounding area, and each has its own website describing boiler or heating work. We have not checked their work, prices, registrations or insurance, and they have not paid to appear.

TP Gas Services

Area: Dock Road, Limerick

Services listed on its website: gas boiler installation and replacement, heat pumps, underfloor heating; RGI stated

Website: tpgasservices.ie