Top 5 Waterproofers in Bankstown, New South Wales
There are currently 5 highly-rated waterproofing businesses in Bankstown, New South Wales listed on TradeRefer, with an average Google rating of 4.8★ across 156 verified reviews. The 5 listed below are ranked from highest to lowest rating, all ABN-verified and community-recommended.
Ranked #2026
By Google Rating
4.8★ Avg Rating
156 Google reviews
100% Verified
ABN & Licence Checked
5 Businesses
In Bankstown
Top 5 Waterproofing in Bankstown — Ranked by Customer Rating
Compare the highest-rated waterproofing in Bankstown, New South Wales. All businesses listed are ABN-verified and surfaced without paid placement.
ProSeal NSW
ProSeal NSW is a top-rated waterproofing business serving Condell Park, NSW. With a 5-star rating from 31 reviews, they are one of the most trusted waterproofing providers in the area. Specialising in waterproofing for bathrooms, balconies, and foundations, ProSeal NSW delivers quality workmanship and reliable service. Contact them today for a free quote.
Scientific Waterproofing Products
SWPPL provides Solutions to Waterproofing Problems. SWPPL supplies quality products and advise, based on technical know how. Stocked in Bunnings Trade stores.
The Waterproofing Shop
The Waterproofing Shop is a top-rated waterproofing business serving Roselands, NSW. With a 4.8-star rating from 102 reviews, they are one of the most trusted waterproofing providers in the area. Specialising in waterproofing for bathrooms, balconies, and foundations, The Waterproofing Shop delivers quality workmanship and reliable service. Contact them today for a free quote.
iSeal Waterproofing Solutions Pty Ltd
iSeal Waterproofing Solutions Pty Ltd is a top-rated waterproofing business serving Padstow, NSW. With a 4.7-star rating from 12 reviews, they are one of the most trusted waterproofing providers in the area. Specialising in waterproofing for bathrooms, balconies, and foundations, iSeal Waterproofing Solutions Pty Ltd delivers quality workmanship and reliable service. Contact them today for a free quote.
Forspec Protective Coatings
Welcome to Forspec Protective Coatings, where innovation meets reliability in every drop. Dive into a world where science, technology, and craftsmanship converge to redefine the standards of waterproofing solutions, floor and wall coatings, and essential accessories.
How Much Do Waterproofing Cost in Bankstown?
Pricing data based on Australian industry averages for New South Wales. Always get 2–3 written quotes.
Typical Range
$30–$80
/m²
After-Hours Rate
$120
Emergency callout
Avg Hourly Rate
$55
Bankstown market average
Prices are estimates only. Always request a written quote before authorising any work.
Waterproofing Licensing Requirements in New South Wales
In NSW, waterproofing must comply with AS 3740. For home building work, waterproofing is a specialist area requiring appropriate contractor licensing.
How to Choose the Best Waterproofing in Bankstown
Use this checklist before hiring any waterproofing in Bankstown, New South Wales.
- 1
Verify their electrical licence is current at your state's electrical safety authority (e.g. Energy Safe Victoria, NSW Fair Trading).
- 2
Confirm they carry public liability insurance of at least $5 million — ask to see the certificate.
- 3
Get 2–3 written quotes for any job over $500. A written quote protects both parties and clarifies the full scope.
- 4
Check their Google and TradeRefer ratings — look for consistent reviews mentioning punctuality, clean workmanship, and clear communication.
- 5
Ask whether they'll provide a Certificate of Compliance (electrical safety certificate) on completion, as required by law in most states.
Frequently Asked Questions — Waterproofing in Bankstown
How much does bathroom waterproofing cost in Australia?
Waterproofing a standard shower costs $300–$600. A full bathroom including shower, floor, and bath area costs $500–$1,200. Balcony waterproofing costs $80–$150/m². These are labour costs only — materials add $50–$200 depending on the membrane system used.
Do I legally need to waterproof my shower?
Yes — AS 3740 (Waterproofing of domestic wet areas) is mandatory under the National Construction Code. All showers, bath surrounds, laundries, and balconies must be waterproofed to this standard. Failure to comply can void home insurance claims related to water damage.
How long does waterproofing last in a shower?
A quality waterproofing membrane correctly installed should last 10–15 years minimum. Cheap products or incorrect installation fail much sooner. The grout and tile system on top doesn't waterproof the shower — the membrane underneath does. Grout cracks don't mean the waterproofing has failed.
How do I know if my shower is leaking?
Signs include damp patches on adjacent walls or floors, mould behind tiles, peeling paint, efflorescence (white mineral deposits), soft or spongy tiles, or a musty smell. A licensed waterproofer can perform a flood test to confirm leakage before expensive rectification work begins.
Can you waterproof over existing tiles?
Generally not recommended for showers. If the existing tiles are sound and firmly bonded, a liquid membrane can be applied over them in some scenarios. However, if there are any cracked, hollow, or loose tiles, these must be removed and the substrate repaired before new waterproofing is applied.
Top Waterproofing in Nearby Cities
Find the highest-rated waterproofing in other cities across New South Wales.
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