Company lists · Data refreshed September 2026

Top 25 Commercial water heater installation companies based in Australia

Name: Commercial water heater installation companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 89 companies tracked

RevenueBase identified 89 commercial water heater installation companies headquartered in Australia as of September 2026 and tracks 883 professional contacts across them, including 291 with verified work emails. Sydney is the largest hub.

This list covers commercial water heater installation companies headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

89Companies

883Contacts tracked

291Verified emails

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The 25 largest commercial water heater installation companies based in Australia

Ranked by team size

Top 25 of 89 commercial water heater installation companies based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial water heater installation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Rinnai Australia	Indirect evidence	Braeside, AustraliaHQ checked Sep 19, 2026	201-500	294 contacts →
	Indirect evidence “Following Rinnai's international origins dating back more than 100 years, Rinnai Australia was established 50 years ago and since then has been providing Australians with the best…” Source: RevenueBase Database · checked Sep 19, 2026
2	Automatic Heating Global PTY LTD	Strong evidence	Epping, AustraliaHQ checked Sep 19, 2026	51-200	56 contacts →
	Strong evidence “Celebrating 100 years in 2026, Automatic Heating is Australia's leading provider of commercial heating and hot water solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Westcool WA PTY LTD	Strong evidence	Wangara, AustraliaHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong evidence “Westcool strives to be one of WA’s leading companies for the supply, installation and maintenance of commercial air conditioning and refrigeration systems.” Source: RevenueBase Database · checked Sep 19, 2026
4	Alliance Climate Control	Indirect evidence	Alexandria, AustraliaHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Alliance Climate Control is dedicated to your year round comfort and life style.” Source: RevenueBase Database · checked Sep 19, 2026
5	Jennings Plumbing Services PTY LTD	Indirect evidence	Artarmon, AustraliaHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Jennings Plumbing Services has been in business for over 20 years.” Source: RevenueBase Database · checked Sep 19, 2026
6	Jaymel Airconditioning PTY LTD	Partial evidence	Holden Hill, AustraliaHQ checked Sep 19, 2026	51-200	15 contacts →
	Partial evidence “At Jaymel Airconditioning we are proud to be an industry leader in South Australia, providing commercial, industrial and residential air conditioning and refrigeration services…” Source: RevenueBase Database · checked Sep 19, 2026
7	Aquaclear Australia	Partial evidence	Werribee, AustraliaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “AquaClear install and maintain drinking water filters and boilers.” Source: RevenueBase Database · checked Sep 19, 2026
8	Thermal Energy Solutions	Strong evidence	Condell Park, AustraliaHQ checked Sep 19, 2026	11-50	8 contacts →
	Strong evidence “At Thermal Energy Solutions Pty Ltd, we pride ourselves on being able to provide safe, hygienic efficient and effective heating solutions for residential and commercial…” Source: RevenueBase Database · checked Sep 19, 2026
9	Reliable Plumbing GAS Solar PTY LTD	Indirect evidence	Seventeen Mile Rocks, AustraliaHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “RPGS provides integrated plumbing, pump and electrical maintenance across South East Queensland.” Source: RevenueBase Database · checked Sep 19, 2026
10	Australian Airconditioning Services	Partial evidence	Malaga, AustraliaHQ checked Sep 19, 2026	51-200	6 contacts →
	Partial evidence “Established in 1978, Australian Airconditioning Services has become associated with quality, technical expertise and innovation in all aspects of installation, service and…” Source: RevenueBase Database · checked Sep 19, 2026
11	Dallas Mechanical Services PTY LTD	Partial evidence	Seven Hills, AustraliaHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Dallas Mechanical Services is a proudly Australian-owned, Sydney-based company delivering smart, scalable HVAC solutions for commercial buildings.” Source: RevenueBase Database · checked Sep 19, 2026
12	Commercial HOT Water And Maintenance	Strong evidence	Dromana, AustraliaHQ checked Sep 19, 2026	11-50	5 contacts →
	Strong evidence “Commercial Hot Water and Maintenance, incorporating Thermal Energy Solutions and Energy Smart Water, specialises in the design, supply and installation of commercial hot water…” Source: RevenueBase Database · checked Sep 19, 2026
13	Spectrol	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
14	S360 PTY LTD	Indirect evidence	East Brisbane, AustraliaHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “S360 Services is a leading group of technical service companies.” Source: RevenueBase Database · checked Sep 19, 2026
15	Simons Boilers	Partial evidence	Rosebery, AustraliaHQ checked Sep 19, 2026	11-50	5 contacts →
	Partial evidence “Simons Boilers is the leading provider of efficient and cost effective solutions when it comes to Steam and Hot Water Systems.” Source: RevenueBase Database · checked Sep 19, 2026
16	Mechanical Constructions AIR Services PTY LTD	Partial evidence	Wangara, AustraliaHQ checked Sep 19, 2026	11-50	4 contacts →
	Partial evidence “MCAS is a Perth based commercial air conditioning & HVAC contractor delivering reliable air conditioning solutions to industrial and commercial clients across Western Australia.” Source: RevenueBase Database · checked Sep 19, 2026
17	Dawson Heating & Cooling PTY LTD	Partial evidence	Queanbeyan East, AustraliaHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “Dawson Heating & Cooling is your trusted contractor for premium Heating and Cooling solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Canberra AIR Conditioning Services	Strong evidence	Fyshwick, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Strong evidence “We offer installation, maintenance and servicing of refrigeration, air conditioning and heating for all commercial properties.” Source: RevenueBase Database · checked Sep 19, 2026
19	Sovereign AIR Aust PTY LTD	Partial evidence	Clayton, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Air conditioning – Refrigeration – Heating – Extraction – Electrical Sovereign Air commenced operation in 1989 as a company to provide service, repairs and maintenance to…” Source: RevenueBase Database · checked Sep 19, 2026
20	Efficient Pure Plumbing PTY LTD	Indirect evidence	Dandenong, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “We are a climate master dealership for BRAEMAR & BREEZAIR.” Source: RevenueBase Database · checked Sep 19, 2026
21	Boiler & Combustion Services PTY LTD	Strong evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “Boiler & Combustion Services specialise in the design, manufacture and distribution of new and reconditioned steam boilers, commercial and industrial hot water boilers, high…” Source: RevenueBase Database · checked Sep 19, 2026
22	Paladin Services Australia	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Strong evidence “Paladin Services are experts in residential and commercial pool heating, hot water, HVAC and pool covers installation and repairs.” Source: RevenueBase Database · checked Sep 19, 2026
23	HOT Water Maintenance Plumbing & Electrical	Partial evidence	Caringbah, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “Hot Water Maintenance (HWM) is a family-owned and operated business that has been running for over 20 years.” Source: RevenueBase Database · checked Sep 19, 2026
24	Asap Local Plumbing	Indirect evidence	Warrnambool, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “ASAP Local Plumbing is a construction company based in Warrnambool, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
25	Extrordinair PL	Partial evidence	Airport West, AustraliaHQ checked Sep 19, 2026	11-50	1 contacts →
	Partial evidence “Your Heating and Cooling Solution for Residential Houses and Apartments Welcome to Extrordinair!” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: commercial water heater installation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names commercial water heater installation companies.
Partial evidence: Its own public description names part of commercial water heater installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial water heater installation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 89 commercial water heater installation companies based in Australia

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Commercial water heater installation companies based in Australia at a glance

As of Sep 19, 2026

33.0%Verified-email coverage

9.9Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 89 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among commercial water heater installation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “commercial water heater installation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names commercial water heater installation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among commercial water heater installation companies, and records with no verified work email. Companies headquartered outside Australia are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 291 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names commercial water heater installation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many commercial water heater installation companies are there based in Australia?

RevenueBase identified 89 commercial water heater installation companies headquartered in Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Rinnai Australia, headquartered in Braeside, tops this list with the largest team on record.

Which city has the most commercial water heater installation companies?

Sydney leads with 4 headquartered companies, followed by Artarmon (3) and Bayswater (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 291 verified decision-maker contacts tracked across these 89 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.