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Trades & construction · October 2026 figures

Waterproofing Contractors in Australia

The Agentize Directory ranks 274 waterproofing contractors across 8 Australian cities and towns. The top-ranked nationally are Alpha Sealed WA in Perth (5.0 from 625 reviews), Professional Caulking Group in Melbourne (5.0 from 566 reviews) and Black Diamond Caulking in Melbourne (5.0 from 452 reviews).

Ranked
274
Cities and towns
8
Median rating
5.0
With a website
87%

Waterproofing Contractors at a glance

  • 87% of waterproofing contractors in the directory list a website, 99% a phone number and 95% their opening hours.
  • 66% of those with hours open on Saturday and 24% on Sunday.
  • 19 list round-the-clock hours every day of the week.
  • Their median Google rating is 5.0, from 8,763 reviews in all.
  • Sydney has the most (117), then Melbourne (97) and Brisbane (24).
  • Of the cities with twenty or more, Sydney has the highest median rating (5.0).
  • Alpha Sealed WA in Perth has the most Google reviews of any waterproofing contractor listed (625).

The ten best-proven waterproofing contractors in Australia

  1. 1Alpha Sealed WAPerth · 5.0 from 625 · Proven 4.97
  2. 2Professional Caulking GroupMelbourne · 5.0 from 566 · Proven 4.97
  3. 3Black Diamond CaulkingReservoir, Melbourne · 5.0 from 452 · Proven 4.96
  4. 4MB Caulking ServicesMelbourne · 5.0 from 348 · Proven 4.95
  5. 5SealTech SolutionsSydney · 5.0 from 159 · Proven 4.89
  6. 6We Fix Leaking ShowersMelbourne · 5.0 from 154 · Proven 4.88
  7. 7Hunter Waterproofing SpecialistsAuburn, Sydney · 5.0 from 95 · Proven 4.83
  8. 8Seal MastersCampbelltown, Sydney · 5.0 from 87 · Proven 4.81
  9. 9Tony Caulk's Pro SealersFootscray, Melbourne · 5.0 from 79 · Proven 4.80
  10. 10SCR MelbourneAbbotsford, Melbourne · 4.9 from 154 · Proven 4.80

Waterproofing Contractors in New South Wales

Top waterproofing contractors across New South Wales

Waterproofing Contractors in Victoria

Waterproofing Contractors in Queensland

Top waterproofing contractors across Queensland

Waterproofing Contractors in Western Australia

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Questions

Who are the best waterproofing contractors in Australia?

The top-ranked nationally are Alpha Sealed WA in Perth (5.0 from 625 reviews), Professional Caulking Group in Melbourne (5.0 from 566 reviews) and Black Diamond Caulking in Melbourne (5.0 from 452 reviews). Each list is ranked city by city by proven rating, the Google rating weighted by the reviews behind it.

Which Australian city has the most waterproofing contractors?

In the Agentize Directory, Sydney has the most waterproofing contractors (117), followed by Melbourne (97), Brisbane (24) and Gold Coast (15).

Where are waterproofing contractors rated highest?

Among cities with at least twenty waterproofing contractors listed, Sydney has the highest median Google rating: 5.0 across 117 businesses.

How many waterproofing contractors list their opening hours?

95% of the 274 waterproofing contractors in the directory list opening hours on Google; of those, 66% open on Saturday and 24% on Sunday.

Ratings and review counts are Google's, as listed in October 2026. Phone numbers, websites and opening hours are the ones each business lists on Google. No business pays to be listed or to move up, and none is verified or endorsed by Agentize. How the ranking works.