Company lists · Data refreshed September 2026

Top 25 Residential hvac contractors based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 61 companies tracked

RevenueBase identified 61 company matches for residential hvac contractors associated with Ireland as of September 2026 and tracks 752 professional contacts across them, including 356 with verified work emails. Dublin is the largest hub.

This list covers company matches for residential hvac 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 September 17, 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 Sep 17, 2026 How this list was built

61Companies

752Contacts tracked

356Verified emails

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The 25 largest residential hvac contractors based in Ireland

Ranked by team size

Top 25 of 61 company matches for residential hvac contractors based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Crystal AIR LTD	Exact match	Clane, IrelandHQ recorded Sep 17, 2026	51-200	96 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 · Sep 17, 2026 · View company records in RevenueBase
2	Quinn Downes Group	Exact match	Dublin 12, IrelandHQ recorded Sep 17, 2026	51-200	85 contacts →
	Exact match “Quinn Downes Mechanical Services Ltd was founded in by our Directors Pat Quinn and Derek Downes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Burlington Engineering	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	64 contacts →
	Exact match “Burlington Engineering Limited is a building services engineering provider with a long established reputation as one of the leading companies operating in its field.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Thermodial	Exact match	Magna Business Park, IrelandHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “Thermodial are experts in planned preventative maintenance (PPM) of heating, ventilation and air conditioning (HVAC), BEMS, electrical and water services – since 1986.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Jcps Mechanical LTD	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “JCPS Mechanical Ltd was established in 2007 by Managing Director John Corr and quickly expanded to become on of Ireland's leading Mechanical Contractors specialising in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Danann AIR Limited	Exact match	Balbriggan, IrelandHQ recorded Sep 17, 2026	51-200	39 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Kelly RAC	Exact match	Ennis, IrelandHQ recorded Sep 17, 2026	51-200	30 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 · Sep 17, 2026 · View company records in RevenueBase
8	Flowtech Engineering LTD	Exact match	Kildare, IrelandHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “Flowtech Engineering is a privately owned company that is able to assist with all HVAC requirements.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Trane Ireland	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	n/a	19 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 · Sep 17, 2026 · View company records in RevenueBase
10	Crosbie Group	Exact match	Dublin 12, IrelandHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “Crosbie Group designs, delivers and maintains mission-critical refrigeration and HVAC systems for environments where failure is not an option.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Citycool	Exact match	Duleek, IrelandHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Citycool are a family run business that specialise in the hire and sale of high quality portable air conditioning, heating, dehumidifier and humidifer units.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Efficient Climate Control	Exact match	Dublin 11, IrelandHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match “Efficient Climate Control provides HVAC and mechanical services across commercial and industrial environments.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Coolair LTD	Exact match	Dublin 24, IrelandHQ recorded Sep 17, 2026	11-50	14 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 · Sep 17, 2026 · View company records in RevenueBase
14	Blanchfield Heating	Exact match	Kilkenny, IrelandHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Blanchfield Heating was established in 1994 as a private owned business with a flexible client-focused approach and an appreciation of long term business relationships.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Entropic	Exact match	Maynooth, IrelandHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Entropic provide low energy, long life, air conditioning systems for indoor environments.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Euro GAS LTD	Exact match	Bray, IrelandHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Euro Gas – Ireland’s Leading Heating, Ventilation & Air Conditioning Specialists.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	BMC Eirco Refrigeration & Hvac	Exact match	Little Island, IrelandHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “The Team at BMC Eirco Refrigeration have been taking pride in supporting and serving our customers everyday since We provide sales, service and maintenance of HVACR from our…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Cross Hire Services	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “We are Ireland's leading HVAC solutions provider.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Buggy Refrigeration	Exact match	Tullamore, IrelandHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Bringing a fresh approach to your cooling needs'' We specialise in the Installation and Servicing on a wide range of Refrigeration and Air Conditioning Equipment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Walsh & Sheehan LTD	Exact match	Co. Kilkenny, IrelandHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Walsh & Sheehan Ltd was founded in 2001 by Business Partners Owen Sheehan and Brian Walsh.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Climatech LTD	Exact match	Sandymount, IrelandHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “We are a refrigeration and air conditioning company that prides itself on our excellent workmanship and attention to detail.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Hoctor AIR Conditioning & Refrigeration Services	Exact match	Offaly, IrelandHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “Hoctor Refrigeration and Air Conditioning was founded in 1981 and is based in Tullamore, County Offaly.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Thermoheat Mechanical LTD	Exact match	Dublin, IrelandHQ recorded Sep 17, 2026	11-50	6 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 · Sep 17, 2026 · View company records in RevenueBase
24	Ecocool Refrigeration And AIR Conditioning	Exact match	Kilkenny, IrelandHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “ecoCOOl Refrigeration and Air Conditioning has it’s origins dating back to 1954, when Tom McDonald started his refrigeration business in Kieran Street, Kilkenny.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	MOS Mechanical	Exact match	Summerhill, IrelandHQ recorded Sep 17, 2026	11-50	5 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 · Sep 17, 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 “residential hvac 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 61 residential hvac contractors based in Ireland

See the full list, filter by size, metro and specialty, and access 356 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Residential hvac contractors based in Ireland at a glance

As of Sep 17, 2026

47.3%Verified-email coverage

12.3Average contacts per company

11-50Median size (employees)

23.0%Largest-city concentration · Dublin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 61 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 “residential hvac 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 356 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 September 17, 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 “residential hvac contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many residential hvac contractors are there based in Ireland?

RevenueBase identified 61 company matches for residential hvac contractors associated with Ireland as of September 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?

Crystal AIR LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most residential hvac contractors?

Dublin leads with 14 company records, followed by Carlow (2) and Clane (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 356 professional contacts with verified work emails tracked across these 61 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 September 17, 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.