Waterproofing Perth — Licensed Contractors, Free Quotes

Waterproofing is hidden work — you can't see it once it's done, so getting it right the first time is everything. We connect you with up to 3 licensed, insured Perth waterproofers so you can compare and choose with confidence.

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AS 3740 CompliantLicensed ContractorsFully Insured100% Free Service

Waterproofing Services in Perth

From new bathroom builds to commercial projects, get matched with specialist contractors for every type of waterproofing.

Bathroom Waterproofing

Full membrane systems for new builds and renovations. AS 3740 compliant.

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Shower Waterproofing

Prevent leaks before they start. Membrane, tiling prep, and hob sealing.

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Balcony Waterproofing

Protect structural concrete from water ingress and salt damage.

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Roof Waterproofing

Liquid-applied membranes, torch-on systems, and roof coatings.

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Basement Waterproofing

Tanking, drainage, and vapour barriers for below-grade spaces.

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Retaining Wall Waterproofing

Drainage cells, membranes, and weep holes for retaining walls.

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Concrete Waterproofing

Crystalline, coating, and admixture systems for concrete protection.

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Commercial Waterproofing

Large-scale projects for builders, body corporates, and facility managers.

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Already Have a Leak?

Water damage gets worse every day. Identify your problem below and get connected with a specialist who can fix it — before it costs you thousands more.

Leaking Shower Repair

Moderate

Water stains, musty smells, or damp walls near your shower? Get it fixed before structural damage sets in.

Fix this issue

Leaking Balcony Repair

Moderate

Cracking tiles, pooling water, or stains on the ceiling below? Balcony leaks cause serious structural damage.

Fix this issue

Rising Damp Treatment

Moderate

Salt deposits, peeling paint, and crumbling mortar at the base of your walls? Rising damp gets worse over time.

Fix this issue

Remedial Waterproofing

Moderate

Previous waterproofing failed? We connect you with specialists in membrane repair and replacement.

Fix this issue

Waterproofing Inspection

Moderate

Not sure if your waterproofing is up to standard? Get a professional compliance inspection.

Fix this issue

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How It Works

Getting quotes from licensed waterproofers shouldn't be hard. Here's how we make it simple.

Tell Us About Your Project

Describe your waterproofing needs — bathroom reno, leaking shower, balcony repair, or anything else. Takes under 2 minutes.

Get Matched with Contractors

We match you with up to 3 licensed, insured waterproofing contractors in your area of Perth. No obligation.

Compare and Choose

Review quotes, check credentials, and pick the contractor that fits your budget and timeline. You stay in control.

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Waterproofing Costs in Perth

Typical bathroom waterproofing costs based on size. Prices vary by scope, access, and membrane type — get accurate quotes from licensed contractors.

Small Bathroom

$1,000–$2,000

$250 – $500 per m²

Ensuite or powder room up to 4m²

Most Common

Medium Bathroom

$2,000–$4,000

$250 – $500 per m²

Standard family bathroom 4–8m²

Large Bathroom

$4,000–$6,000+

$220 – $450 per m²

Master suite or complex layout 8m²+

Use our detailed cost calculator →

Areas We Cover Across Perth

Our network of licensed waterproofers covers every corner of metropolitan Perth — from the CBD to the northern and southern corridors, coastal suburbs to the hills.

Perth CBD

Perth CBD · Northbridge · East Perth · West Perth · Highgate · Mount Lawley

Subiaco

Subiaco · Shenton Park · Daglish · Jolimont

Nedlands

Nedlands · Dalkeith · Crawley · Floreat

Claremont

Claremont · Swanbourne · Cottesloe

Fremantle

Fremantle · South Fremantle · North Fremantle · White Gum Valley · Beaconsfield

Joondalup

Joondalup · Hillarys · Duncraig · Currambine · Burns Beach · Ocean Reef

Stirling

Stirling · Scarborough · Doubleview · Karrinyup · Balcatta · Innaloo · Yokine

Wanneroo

Wanneroo · Clarkson · Butler · Alkimos · Two Rocks · Yanchep

View all Perth areas →

Waterproofing Perth — Frequently Asked Questions

Bathroom waterproofing in Perth typically costs $1,000-$2,000 for a small bathroom, $2,000-$4,000 for a medium bathroom, and $4,000-$6,000+ for large or complex projects. Perth prices can vary based on labour demand and material availability. Get 3 free quotes from licensed contractors through our service to compare prices.

Yes. In Western Australia, waterproofing for wet areas must comply with AS 3740 and the National Construction Code. Under the Building Services (Registration) Act 2011, waterproofing work must be carried out by practitioners registered with the WA Building Commission. All contractors in our network hold current WA building registration and appropriate insurance. Request your free quotes to get matched with licensed professionals.

A standard bathroom waterproofing job takes 2-3 days including surface preparation, membrane application, curing time, and flood testing. Complex remedial work may take longer. Our matched contractors will provide accurate timelines in their free quotes.

AS 3740 is the Australian Standard for waterproofing of domestic wet areas. It specifies minimum membrane requirements, bond-breaker placement, and testing protocols. Non-compliant waterproofing can void insurance and create costly structural problems. Every contractor in our network works to AS 3740.

Common signs include water stains on ceilings below wet areas, musty odours, peeling paint, loose tiles, and visible mould. If you notice any of these, request a free inspection through our service — early detection saves thousands in repair costs.

Ready to Get Your Waterproofing Sorted?

Stop worrying about leaks, failed membranes, and water damage. Fill out the form and we'll match you with up to 3 licensed Perth waterproofing contractors within 24 hours. It's 100% free, with no obligation.

✓Compare up to 3 quotes side-by-side
✓Every contractor is licensed and insured
✓AS 3740 compliant workmanship guaranteed
✓No cost, no obligation — ever