#1
Black Diamond Caulking | Expert Caulking Services Melbourne
5.0
Read 424 reviews · Score: 100/100
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Bestin
2026 Rankings
Best Waterproofing Contractors in Cranbourne
Compare the top waterproofing contractors in Cranbourne, VIC, ranked by our composite reputation score.
Updated October 2026 · Based on 546 real Google reviews across the 13 waterproofing contractors
Bestin
Top Waterproofing Contractors in Cranbourne, VIC
The short answer
As of October 2026, the 3 highest-ranked waterproofing contractors in Cranbourne, VIC on the Starworks directory are Black Diamond Caulking | Expert Caulking Services Melbourne (5.0 stars from 424 Google reviews), AquaTech Waterproofing (5.0 stars from 15 Google reviews) and Hexon Renovations (4.8 stars from 29 Google reviews).
Starworks ranks 13 waterproofing contractors in Cranbourne, VIC, holding 546 Google reviews between them. Across the 13 the median rating is 5.0 stars from a median of 10 reviews. Of the 13, 12 are rated 4.5 or better and 1 has passed 100 reviews.
Every figure here is computed from Google review data that Starworks collects for waterproofing contractors in Cranbourne, VIC, recalculated when this page rebuilds. Placement on this list cannot be bought.
#13
SINA TILING AND WATER PROOFING PTY LTD
3.0
Read 2 reviews · Score: 1/100
4 Ashbrook Way, Melbourne VIC 3977
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Frequently Asked Questions
Common questions about waterproofing contractors in Cranbourne.
Who are the best waterproofing contractors in Cranbourne?
As of October 2026, the 3 highest-ranked waterproofing contractors in Cranbourne, VIC on the Starworks directory are Black Diamond Caulking | Expert Caulking Services Melbourne (5.0 stars from 424 Google reviews), AquaTech Waterproofing (5.0 stars from 15 Google reviews) and Hexon Renovations (4.8 stars from 29 Google reviews). Every figure here is computed from Google review data that Starworks collects for waterproofing contractors in Cranbourne, VIC, recalculated when this page rebuilds. Placement on this list cannot be bought.
How many waterproofing contractors does Starworks rank in Cranbourne?
Starworks ranks 13 waterproofing contractors in Cranbourne, VIC, holding 546 Google reviews between them. Across the 13 the median rating is 5.0 stars from a median of 10 reviews. Of the 13, 12 are rated 4.5 or better and 1 has passed 100 reviews.
What star rating should I expect from a good waterproofing contractor in Cranbourne?
The median Google rating across the 13 waterproofing contractors Starworks ranks in Cranbourne, VIC is 5.0 stars, and 12 of them sit at 4.5 or above. A rating at or near that median is ordinary for waterproofing contractors in Cranbourne, VIC rather than a warning sign on its own, and a rating well above it only means much when enough reviews stand behind it.
How many Google reviews does an established waterproofing contractor in Cranbourne have?
The median waterproofing contractor Starworks ranks in Cranbourne, VIC carries 10 Google reviews, and 1 of the 13 waterproofing contractors have passed 100.
How does Starworks rank waterproofing contractors in Cranbourne?
Starworks gives every waterproofing contractor in Cranbourne, VIC a reputation score out of 100 from three things: its Google star rating (up to 47 points), how many reviews back that rating (up to 35), and whether customers can reach it by website and phone number (up to 18). Review volume is the one part that can subtract: below 15 reviews it costs points, because a near-empty review record gives a stranger very little to go on. No score falls below 0 and placement cannot be bought. The score measures the strength of a business's public review record rather than the quality of its work, so it is worth reading the reviews as well, and every listing links to them on Google.
Why does a waterproofing contractor in Cranbourne with all 5-star reviews score lower than one with a lower rating?
Because review volume counts as well as rating, and below 15 reviews it counts against you. Five perfect reviews are encouraging but thin evidence; three hundred reviews averaging 4.7 tell a stranger far more about what to expect on the day. That is a judgement about how much proof exists, not about the quality of the work, and a newer waterproofing contractor with a handful of excellent reviews may still be the right choice in Cranbourne, VIC. The star rating and review count sit next to every score so you can weigh both yourself.
Why does the same waterproofing contractor not appear several times on this list?
Some businesses run more than one Google listing, often one per suburb they service. Those are the same company, so Starworks groups them and shows the business once, using the listing with the strongest review record. That is why this page opens with 13 distinct waterproofing contractors in Cranbourne, VIC rather than a longer list of repeats.
How often is this list of waterproofing contractors in Cranbourne updated?
This ranking of waterproofing contractors in Cranbourne, VIC rebuilds on a 30-day cycle and prints the date of its last rebuild above the list, which for the current version is October 2026. Ratings and review counts are re-read from Google over time rather than on a fixed schedule, so an individual figure here can be older than the rebuild date.
How can I improve my waterproofing contractor business ranking in Cranbourne?
Collect genuine customer reviews consistently, and keep a working website and phone number on your Google listing, because those are the three inputs the score reads. There is no placement to buy on this page. For scale: the median waterproofing contractor Starworks ranks in Cranbourne, VIC carries 10 Google reviews at 5.0 stars.
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