Company lists · Data refreshed November 2026

Top 25 Heating installation contractors based in Ireland

Name: Heating installation contractors based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 96 companies tracked

RevenueBase identified 96 company matches for heating installation contractors associated with Ireland as of November 2026 and tracks 811 professional contacts across them, including 342 with verified work emails. Dublin is the largest hub.

This list covers company matches for heating installation contractors associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

96Companies

811Contacts tracked

342Verified emails

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The 25 largest heating installation contractors based in Ireland

Ranked by team size

Top 25 of 96 company matches for heating installation contractors based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Heat Merchants Group	Exact match	Athlone, IrelandHQ recorded Nov 6, 2026	201-500	122 contacts →
	Exact match “Heat Merchants Group trading as Heat Merchants, Bathroom Merchants, and Tubs & Tiles, is part of Wolseley group since 2022.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Crystal AIR LTD	Exact match	Clane, IrelandHQ recorded Nov 6, 2026	51-200	108 contacts →
	Exact match “Crystal Air is a leading service supplier in the field of air conditioning with regard to installations, servicing and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Gaffney Mechanical	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “ENGINEERING EXPERTISE THAT DELIVERS INTELLIGENCE, EXCELLENCE & INNOVATION TO EVERY PROJECT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Kelly RAC	Exact match	Ennis, IrelandHQ recorded Nov 6, 2026	51-200	29 contacts →
	Exact match “Kelly Refrigeration and Air Conditioning is one of Ireland’s leading refrigeration, air conditioning and HVAC service providers, supporting commercial and industrial clients…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Trane Ireland	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	n/a	21 contacts →
	Exact match “Make Trane Ireland your go-to commercial HVAC partner – for rental and sales of heating, ventilation and air conditioning systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Precision Heating LTD	Exact match	Ballycoolin, IrelandHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “Welcome Precision Heating is one of Ireland's leading suppliers of heating and renewable energy products to the building and construction Industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Breffni Insulation	Exact match	Kilnaleck, IrelandHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Breffni Insulation was founded in 2006 and the company is registered and compliant with standards as per the National Standards Authority of Ireland (NSAI), Sustainable Energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Efficient Climate Control	Exact match	Dublin 11, IrelandHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Efficient Climate Control provides HVAC and mechanical services across commercial and industrial environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Coolair LTD	Exact match	Dublin 24, IrelandHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Established in 1970, Coolair have over 40 years market leading experience in the supply, installation, service and maintenance of HVAC Systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Blackwell Energy	Exact match	Dublin 6, IrelandHQ recorded Nov 6, 2026	51-200	11 contacts →
	Exact match “Blackwell Energy design, supply & install home and business energy services such as solar PV, air source heat pumps, retrofit underfloor heating, air conditioning, deep retrofit…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Euro GAS LTD	Exact match	Bray, IrelandHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “Euro Gas – Ireland’s Leading Heating, Ventilation & Air Conditioning Specialists.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Thermoheat Mechanical LTD	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “ThermoHeat is a Dublin based mechanical company that offers a complete range of heating, plumbing, ventilation and air-conditioning solutions to commercial clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Apex Controls Limited	Exact match	Sligo, IrelandHQ recorded Nov 6, 2026	51-200	7 contacts →
	Exact match “REFRIGERATION We design, supply and fit, efficient cost-saving refrigeration systems that not only meet your needs but also help you save on energy costs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Eurofluid Energy Solutions	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “Eurofluid Energy Solutions delivers sustainable, high-performance heating, cooling, hot water, and ventilation systems across Ireland’s commercial, residential, and district…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	NOC Heating And Plumbing LTD	Exact match	Co. Kerry, IrelandHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “Since our formation in 2003, NOC Heating & Plumbing Ltd has grown steadily and has completed projects across all sectors of the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Excel Cooling Services	Exact match	IrelandHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “We are a Refrigeration/Air Conditioning Company that Design, Install and Commissioning all equipment within our Industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	NRG Servicing Solutions	Exact match	Glanmire, IrelandHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “NRG Servicing Solutions brings decades of heating system expertise directly to Cork homes and businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	MOS Mechanical	Exact match	Summerhill, IrelandHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “MOS Mechanical - previously Mick O’ Shea Heating & Plumbing is part of the MJOS Group including Home Comfort Retrofits and MSM Renewables which has been providing high-quality…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Mastertherm Ireland	Exact match	Newtown Blackrock, IrelandHQ recorded Nov 6, 2026	201-500	5 contacts →
	Exact match “Master Therm Ireland is part of the Master Therm Family Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Comfort Solutions Retrofit	Exact match	Newport, IrelandHQ recorded Nov 6, 2026	11-50	5 contacts →
	Exact match “We bring warmth, comfort and fresh air to your home or business with a keen emphasis on performance and quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Service Master Ireland	Exact match	M4 Business Park, IrelandHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “Service Master is one of Irelands leading, independently owned heat pump servicing and HVAC solutions companies, renowned for our professionalism, reliability and customer care…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Ollie Mcphillips	Exact match	Co. Wexford, IrelandHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Elemex Domestic Heating Products	Exact match	Santry, IrelandHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “If you have a process heating problem, we can almost certainly provide the solution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	A.S.K. Mechanical Services	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “Mechanical contractor providing heating, plumbing, air conditioning, ventilation services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Reconair Services Limited	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “heating installation contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 96 heating installation contractors based in Ireland

See the full list, filter by size, metro and specialty, and access 342 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating installation contractors based in Ireland at a glance

As of Nov 6, 2026

42.2%Verified-email coverage

8.4Average contacts per company

11-50Median size (employees)

19.8%Largest-city concentration · Dublin

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 96 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ireland whose business descriptions match “heating installation contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 342 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “heating installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating installation contractors are there based in Ireland?

RevenueBase identified 96 company matches for heating installation contractors associated with Ireland as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Heat Merchants Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heating installation contractors?

Dublin leads with 19 company records, followed by Bray (2) and Cork (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 342 professional contacts with verified work emails tracked across these 96 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.