Company lists · Data refreshed September 2026

Top 25 Waterproofing contractors based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 311 companies tracked

RevenueBase identified 311 waterproofing contractors headquartered in Australia as of September 2026 and tracks 2,271 professional contacts across them, including 503 with verified work emails. Sydney is the largest hub.

This list covers waterproofing 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 14, 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 14, 2026 86% judged on-target in blind review

311Companies

2,271Contacts tracked

503Verified emails

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The 25 largest waterproofing contractors based in Australia

Ranked by team size

Top 25 of 311 waterproofing contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to waterproofing 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	Buss Remediation	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 14, 2026	11-50	94 contacts →
	Indirect evidence “BUSS is a privately owned and operated company which has evolved over the last 20 years, supporting both Perth and WA based clients.” Source: RevenueBase Database · checked Sep 14, 2026
2	Bayset	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 14, 2026	51-200	57 contacts →
	Indirect evidence “Our senior technical team have over 230 years hands on experience in all areas of the building envelope, from basement to roof top and work with many international technically…” Source: RevenueBase Database · checked Sep 14, 2026
3	Polyseal Group Australia	Strong evidence	St Peters, AustraliaHQ checked Sep 14, 2026	201-500	51 contacts →
	Strong evidence “Since its inception in 1989, Polyseal has remained a prominent contractor in the Australia waterproofing and remedial markets.” Source: RevenueBase Database · checked Sep 14, 2026
4	Megasealed Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 14, 2026	51-200	47 contacts →
	Indirect evidence “Established in 1996, Megasealed Australia™ is the pioneer in providing a unique guaranteed solution to stop leaking showers and balconies without the unnecessary cost, time loss…” Source: RevenueBase Database · checked Sep 14, 2026
5	Waterproofing Integrity	Partial evidence	Silverwater, AustraliaHQ checked Sep 14, 2026	51-200	47 contacts →
	Partial evidence “Waterproofing Integrity offers independent third-party design consultation and quality control inspection services for waterproofing systems to ensure the intended performance and…” Source: RevenueBase Database · checked Sep 14, 2026
6	Roof & Building Service AUS PTY LTD	Indirect evidence	Eagle Farm, AustraliaHQ checked Sep 14, 2026	11-50	44 contacts →
	Indirect evidence “Roof & Building Service has been the industry leader, providing water penetration solutions in Australia since 1928.” Source: RevenueBase Database · checked Sep 14, 2026
7	Xypex Australia	Partial evidence	Thurgoona, AustraliaHQ checked Sep 14, 2026	51-200	43 contacts →
	Partial evidence “For more than 50 years, proprietary Xypex Crystalline Technology has set an international standard of excellence in concrete waterproofing.” Source: RevenueBase Database · checked Sep 14, 2026
8	Duratec	Partial evidence	Wangara, AustraliaHQ checked Sep 14, 2026	1,001-5,000	27 contacts →
	Partial evidence “Duratec is a self-performing, solutions-driven contractor, specialising in the protection and remediation of steel and concrete.” Source: RevenueBase Database · checked Sep 14, 2026
9	Danlaid Australia Contracting Surfaces	Indirect evidence	Mordialloc, AustraliaHQ checked Sep 14, 2026	51-200	27 contacts →
	Indirect evidence “Danlaid Contracting is a multi-trade commercial subcontracting firm.” Source: RevenueBase Database · checked Sep 14, 2026
10	The Grout GUY	Partial evidence	Wangara, AustraliaHQ checked Sep 14, 2026	51-200	25 contacts →
	Partial evidence “At The Grout Guy, we specialise in professional regrouting, tile repair, and waterproofing solutions for residential and commercial properties across Australia.” Source: RevenueBase Database · checked Sep 14, 2026
11	MAX Build	Indirect evidence	Potts Point, AustraliaHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “We find solutions to complex remedial challenges in both residential and commercial sectors.” Source: RevenueBase Database · checked Sep 14, 2026
12	Crommelin	Indirect evidence	Perth, AustraliaHQ checked Sep 14, 2026	51-200	23 contacts →
	Indirect evidence “Proven Protection.” Source: RevenueBase Database · checked Sep 14, 2026
13	Portolesi Structural	Indirect evidence	Hindmarsh, AustraliaHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “Portolesi Structural have been at the forefront of specialist concrete repair and remedial services to the construction industry in South Australia for over thirty years.” Source: RevenueBase Database · checked Sep 14, 2026
14	Penetron Australia	Partial evidence	Moorebank, AustraliaHQ checked Sep 14, 2026	11-50	19 contacts →
	Partial evidence “Penetron Australia are the industry leaders in providing waterproofing durability and concrete repair products, dedicated to consistent performance and reliability.” Source: RevenueBase Database · checked Sep 14, 2026
15	Aptc Australia	Indirect evidence	Keysborough, AustraliaHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “Our company just ended operation” Source: RevenueBase Database · checked Sep 14, 2026
16	Action Alliance	Indirect evidence	Laverton North, AustraliaHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “The experienced Action team work closely with our customers to complete protective coating jobs to ANY scale.” Source: RevenueBase Database · checked Sep 14, 2026
17	RCR Services	Partial evidence	Newcastle, AustraliaHQ checked Sep 14, 2026	11-50	19 contacts →
	Partial evidence “RCR Services is a trusted partner for commercial roofing, waterproofing, and concrete remediation projects across Australia.” Source: RevenueBase Database · checked Sep 14, 2026
18	CPR Services	Indirect evidence	Cheltenham, AustraliaHQ checked Sep 14, 2026	51-200	18 contacts →
	Indirect evidence “CPR Services offers concrete protection, repair and strengthening services everywhere concrete is found.” Source: RevenueBase Database · checked Sep 14, 2026
19	Durotech Industries	Partial evidence	Minto, AustraliaHQ checked Sep 14, 2026	11-50	17 contacts →
	Partial evidence “Durotech Industries was founded in 1977, as a manufacturer and supplier of liquid membranes for the waterproofing industry.” Source: RevenueBase Database · checked Sep 14, 2026
20	Waterproofing Assurance PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “Waterproofing Assurance provides a unique quality assurance service to our clients for waterproofing membrane systems.” Source: RevenueBase Database · checked Sep 14, 2026
21	Superseal SPC	Partial evidence	Revesby, AustraliaHQ checked Sep 14, 2026	51-200	16 contacts →
	Partial evidence “Its easy to call ourselves market leaders in the waterproofing and epoxy flooring sector.” Source: RevenueBase Database · checked Sep 14, 2026
22	BIM Remedial Sydney	Indirect evidence	Frenchs Forest, AustraliaHQ checked Sep 14, 2026	11-50	13 contacts →
	Indirect evidence “At BiM Remedial, we’re Sydney’s trusted name for premier remedial building solutions.” Source: RevenueBase Database · checked Sep 14, 2026
23	Kryfix	Partial evidence	Taren Point, AustraliaHQ checked Sep 14, 2026	11-50	13 contacts →
	Partial evidence “KRYFIX is an industry leading concrete waterproofing specialist company based in Sydney.” Source: RevenueBase Database · checked Sep 14, 2026
24	Reflections Services	Partial evidence	Tingalpa, AustraliaHQ checked Sep 14, 2026	51-200	13 contacts →
	Partial evidence “Reflections Services is a rope access and waterproofing company based in Brisbane and the Gold Coast.” Source: RevenueBase Database · checked Sep 14, 2026
25	Mlt1 Australia PTY LTD	Partial evidence	Ashfield, AustraliaHQ checked Sep 14, 2026	11-50	12 contacts →
	Partial evidence “MLT1 Australia specialises in demolition, waterproofing, commercial paving, tiling and polishing in residential and commercial application.” Source: RevenueBase Database · checked Sep 14, 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: waterproofing 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 waterproofing contractors.
Partial evidence: Its own public description names part of waterproofing contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name waterproofing 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 311 waterproofing contractors based in Australia

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Waterproofing contractors based in Australia at a glance

As of Sep 14, 2026

22.1%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

13.8%Largest-city concentration · Sydney

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

176

11-50

101

51-200

201-500

1,001-5,000

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 311 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 waterproofing 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 “waterproofing 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 waterproofing 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 waterproofing 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, 503 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 14, 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.

Waterproofing contractors by metro

Waterproofing contractors in Sydney43

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 waterproofing 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 waterproofing contractors are there based in Australia?

RevenueBase identified 311 waterproofing 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?

Buss Remediation, headquartered in Osborne Park, tops this list with the largest team on record.

Which city has the most waterproofing contractors?

Sydney leads with 43 headquartered companies, followed by Melbourne (18) and Gold Coast (9).

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 503 verified decision-maker contacts tracked across these 311 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 14, 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.