Company lists · Data refreshed September 2026

Top 25 Weatherization contractors based in Australia

Name: Weatherization contractors based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 70 companies tracked

RevenueBase identified 70 weatherization contractors headquartered in Australia as of September 2026 and tracks 365 professional contacts across them, including 96 with verified work emails. Dandenong South is the largest hub.

This list covers weatherization contractors 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

70Companies

365Contacts tracked

96Verified emails

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The 25 largest weatherization contractors based in Australia

Ranked by team size

Top 25 of 70 weatherization contractors 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 weatherization contractors: 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	Auspro Group	Indirect evidence	Point Cook, AustraliaHQ checked Sep 19, 2026	11-50	44 contacts →
	Indirect evidence “Established in 2006, Auspro Group is an accredited energy solutions provider, successfully installing energy upgrades to homes and businesses across Australia whilst protecting…” Source: RevenueBase Database · checked Sep 19, 2026
2	Aussie Greenmarks	Indirect evidence	Ravenhall, AustraliaHQ checked Sep 19, 2026	11-50	37 contacts →
	Indirect evidence “Aussie Greenmarks is an Australian-owned company, established in 2011.” Source: RevenueBase Database · checked Sep 19, 2026
3	Ecostar Double Glazing	Indirect evidence	Dandenong South, AustraliaHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “If homeowners don’t consider retrofitting their home to improve its energy rating, they’re missing an opportunity to save money in the long run,” says University of Melbourne’s…” Source: RevenueBase Database · checked Sep 19, 2026
4	Mulgrave Insulation	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “At Mulgrave Insulation we take pride in being the go to company for all your commercial insulation needs.” Source: RevenueBase Database · checked Sep 19, 2026
5	Ecomaster Thermal Energy Efficiency	Indirect evidence	Preston, AustraliaHQ checked Sep 19, 2026	1-10	17 contacts →
	Indirect evidence “Established in 2004, ecoMaster is a multi-award winning Australian business specialising in the thermal energy efficiency retrofit of existing homes.” Source: RevenueBase Database · checked Sep 19, 2026
6	Energy Efficiency Group	Indirect evidence	Wangara, AustraliaHQ checked Sep 19, 2026	51-200	16 contacts →
	Indirect evidence “Energy Efficiency Group (EEG) is a national specialist delivering industry-leading insulation and energy-efficiency solutions across residential, commercial, industrial, and…” Source: RevenueBase Database · checked Sep 19, 2026
7	Insulfix	Indirect evidence	Castle Hill, AustraliaHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “At Insulfix, we proudly stand as Australia's largest home insulation contracting group, with a legacy spanning over 30 years.” Source: RevenueBase Database · checked Sep 19, 2026
8	Sagecon PTY LTD	Partial evidence	Glen Iris, AustraliaHQ checked Sep 19, 2026	51-200	11 contacts →
	Partial evidence “Melbourne based air conditioning contractor, specialising in high density residential, hotels, aged care and offices.” Source: RevenueBase Database · checked Sep 19, 2026
9	Ee-Fit Energy Efficient Insulation	Indirect evidence	Dandenong South, AustraliaHQ checked Sep 19, 2026	51-200	11 contacts →
	Indirect evidence “Since 2011 ee-Fit has been installing energy efficient insulation and building wraps.” Source: RevenueBase Database · checked Sep 19, 2026
10	Elite AIR Climate Control	Indirect evidence	Banksmeadow, AustraliaHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “At Elite Air, we provide an exclusive Air Conditioning Sydney service such as installation & Maintenance that all home owners love.” Source: RevenueBase Database · checked Sep 19, 2026
11	Good Earth Group	Indirect evidence	Emu Plains, AustraliaHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Good Earth Group is all about helping you save money on your energy bills by getting your home or business more energy efficient.” Source: RevenueBase Database · checked Sep 19, 2026
12	CK Electrical, Solar & Air-Conditioning	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “CK Electrical, Solar & Air Conditioning is Brisbane’s trusted provider of premium energy-efficient solutions.” Source: RevenueBase Database · checked Sep 19, 2026
13	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
14	Avance Energy Solutions Pty. LTD	Indirect evidence	Minchinbury, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Avance Energy Solutions provides proven technologies and solutions that will allow your facility to operate at optimal efficiency.” Source: RevenueBase Database · checked Sep 19, 2026
15	Insulshop South Australia	Indirect evidence	Salisbury Plain, AustraliaHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “We have the broadest range of innovative solutions available at competitive prices and we do not compromise on quality nor service.” Source: RevenueBase Database · checked Sep 19, 2026
16	Insulation Essentials	Partial evidence	Craigieburn, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “We are Melbourne-based wholesale insulation suppliers and contractors dedicated to creating healthy, green, and comfortable home environments.” Source: RevenueBase Database · checked Sep 19, 2026
17	Pride Insulation	Indirect evidence	Pakenham, AustraliaHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Pride Insulation is a leading provider and installer of insulation solutions in the building industry, established in 2016.” Source: RevenueBase Database · checked Sep 19, 2026
18	Climatized Building & Roofing	Indirect evidence	Wandal, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Climatized Building Group provides general building services and repairs with a specialized focus on making your project as energy efficient as possible to enhance the comfort of…” Source: RevenueBase Database · checked Sep 19, 2026
19	Alert Electrical Group	Partial evidence	Airport West, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “Alert Electrical Group is a premier commercial electrical contractor based in Airport West, providing comprehensive electrical solutions across Victoria.” Source: RevenueBase Database · checked Sep 19, 2026
20	GSA Group	Partial evidence	Townsville, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “With over 30 years of industry experience, GSA GROUP have a well-established reputation as leading air conditioning and Refrigeration contractors.” Source: RevenueBase Database · checked Sep 19, 2026
21	Energy Saving Windows & Doors	Indirect evidence	Pymble, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “A simple upgrade of your windows will make a huge change in your family's life." Most newly constructed commercial buildings use the latest double glazed windows and doors…” Source: RevenueBase Database · checked Sep 19, 2026
22	Millair Climate Control	Indirect evidence	Railway Estate, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “The fully trained staff at Millair Climate Control have years of experience.” Source: RevenueBase Database · checked Sep 19, 2026
23	Delta AIR Conditioning & Heating	Indirect evidence	Fyshwick, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Delta Air Conditioning and Heating is a successfully operated family business which has been located in the Canberra region for over 42 years.” Source: RevenueBase Database · checked Sep 19, 2026
24	Larkin Electrical & Data	Indirect evidence	Mordialloc, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
25	Empire Thermal Group	Indirect evidence	Keilor, AustraliaHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Welcome to Empire Thermal Group Empire Thermal Group was founded in 2009.” 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: weatherization contractors. 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 weatherization contractors.
Partial evidence: Its own public description names part of weatherization contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name weatherization contractors. 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 70 weatherization contractors based in Australia

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Weatherization contractors based in Australia at a glance

As of Sep 19, 2026

26.3%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

5.7%Largest-city concentration · Dandenong South

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 70 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 weatherization contractors, 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 “weatherization contractors”. 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 weatherization contractors), 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 weatherization contractors, 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, 96 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 weatherization contractors, 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 weatherization contractors are there based in Australia?

RevenueBase identified 70 weatherization contractors 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?

Auspro Group, headquartered in Point Cook, tops this list with the largest team on record.

Which city has the most weatherization contractors?

Dandenong South leads with 4 headquartered companies, followed by Canberra (2) and Melbourne (2).

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 96 verified decision-maker contacts tracked across these 70 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.