Sydney's Trusted Waterproofing Specialists

Trusted Waterproofers
in Sydney

Protecting homes, apartments, and commercial properties across Greater Sydney with reliable waterproofing installation, repair, and maintenance. Based in Roselands — servicing Sydney CBD to Campbelltown and beyond.

Call 0493 591 267 Email Us
  • 15+ Years' Experience
  • Sydney-Wide Service
  • Residential & Commercial
15+ Years' Experience

Trusted waterproofing specialists in the industry since 2004

Based in Roselands, NSW

Servicing Greater Sydney — CBD to Campbelltown and Richmond

Residential & Commercial

Homes, apartments, strata, and commercial properties

Full-Spectrum Waterproofing

Bathrooms, balconies, rooftops, pools, basements and more

Bernard Waterproofing Pty Ltd branded ute and trailer on location in Sydney
15+ Years Waterproofing Sydney since 2004

About Us

Professional Waterproofing You Can Rely On

Bernard Waterproofing Pty Ltd is a professional waterproofing company based in Roselands, NSW. We provide reliable waterproofing installation, repair, and maintenance services for residential and commercial properties across Sydney.

With more than 15 years of industry experience, our team delivers high-quality waterproofing solutions for homes, apartments, strata buildings, and commercial construction projects. We work across Sydney CBD, Inner West, Western Sydney, South West Sydney, and from Richmond through to Campbelltown.

Waterproofing is one of the most important elements in protecting any property. Poor waterproofing leads to leaks, mould, structural damage, and costly long-term repairs. Our approach focuses on thorough surface preparation, proven waterproofing systems, and careful workmanship — so the job is done right the first time.

✓ New Builds ✓ Renovations ✓ Repairs ✓ Maintenance ✓ Residential ✓ Commercial

What We Do

Waterproofing Services Across Sydney

From bathrooms and balconies to rooftops and basement walls, we waterproof every part of your property with the same attention to detail and quality preparation.

Bernard Waterproofing team member applying membrane to bathroom walls and floor

Bathroom Waterproofing

Showers, ensuites, spa baths, and all wet areas properly sealed to prevent water penetration behind tiles and into adjoining rooms or subfloors.

Bernard Waterproofing team applying waterproof membrane to a balcony surface

Balcony Waterproofing

Balconies and terraces exposed to weather require durable, flexible membranes. We waterproof balcony decks, sills, and junctions to protect the structure below.

Aerial view of a large commercial flat roof with professionally applied waterproofing membrane

Rooftop Waterproofing

Flat and low-pitch rooftops need reliable long-term waterproofing. We install high-performance systems for residential rooftops and large-scale commercial buildings.

Bernard Waterproofing team member waterproofing a laundry wet area

Laundry Waterproofing

Laundry rooms are high-risk areas for water damage. We waterproof floors, walls, and subfloor areas to protect cabinetry, structural timbers, and the rooms below.

Bernard Waterproofing team member carefully applying membrane to a concrete floor

Floor Waterproofing

Concrete and timber subfloors in wet areas require proper membrane application. We treat floors in bathrooms, laundries, balconies, and commercial spaces before tiling.

Flat commercial rooftop with waterproofing membrane installed and mechanical equipment

Green Rooftop & Rooftop Garden Waterproofing

Rooftop gardens and green roofs need specialist root-resistant waterproofing systems. We install membranes designed to handle both water and plant root pressure over the long term.

Water Tank Waterproofing

Concrete and masonry water tanks need food-safe, durable internal linings. We apply waterproofing coatings that prevent seepage and protect the structure from water degradation.

Planter Box Waterproofing

Planter boxes on balconies and rooftops are a common source of concealed leaks. We waterproof planter boxes to prevent moisture damage to the slab and structure underneath.

Retaining Wall Waterproofing

Retaining walls exposed to soil pressure and groundwater require robust waterproofing on the face and base. We apply proven systems to protect retaining walls from deterioration.

Basement Wall Waterproofing

Below-ground structures are under constant groundwater pressure. We waterproof basement walls, floors, and joints to prevent rising damp, leaks, and structural moisture issues.

Lift Shaft Waterproofing

Lift pits collect groundwater and drainage. We waterproof lift shaft bases and walls using specialist systems designed for the confined conditions and compliance requirements of elevator pits.

Swimming Pool Waterproofing

Pool shells and surrounds require specialist waterproofing to handle constant water contact and chemical exposure. We waterproof new and existing pools for long-term leak prevention.

Bernard Waterproofing team member in branded uniform applying waterproofing membrane to an external wall

Why Choose Us

Experience, Preparation, and Reliable Workmanship

We don't cut corners. Every job starts with proper surface preparation, the right product for the conditions, and workmanship you can trust.

15+ Years of Industry Experience

We've waterproofed hundreds of residential and commercial projects across Sydney. That depth of experience means we know how to handle every situation — from straightforward bathroom wet areas to complex commercial rooftops.

Proper Surface Preparation

The most common reason waterproofing fails is poor preparation. We take the time to prepare surfaces correctly before applying any membrane or coating, giving every job the best possible foundation.

Clear, Straightforward Communication

We explain what the problem is, what we recommend, and why. No confusing jargon — just practical, honest advice so you can make informed decisions about your property.

Trusted by Homeowners, Builders & Property Managers

We work across new builds, renovations, repairs, and ongoing maintenance contracts. Builders, strata managers, and property investors rely on us for waterproofing they don't have to worry about after the job is done.

How It Works

A Simple, Reliable Process

From your first enquiry to a completed waterproofing installation, we keep the process straightforward and communication clear at every step.

1

Call or Email

Reach out by phone or email to tell us about your property and the waterproofing work you need. We'll get back to you promptly.

2

Site Inspection

We visit your property to assess the area, identify any existing issues, and understand the full scope of the work required.

3

Recommendation & Quote

We recommend the right waterproofing system for your specific situation and provide a clear, detailed quote with no hidden costs.

4

Professional Installation

Our experienced team completes the waterproofing installation or repair to a high standard — on time and with minimal disruption to your property.

Where We Work

Waterproofing Services Across Greater Sydney

Bernard Waterproofing Pty Ltd is based in Roselands, NSW, and provides professional waterproofing services throughout Greater Sydney. We regularly work across Sydney CBD, the Inner West, Western Sydney, South West Sydney, and surrounding suburbs.

Our service area extends from Richmond in the north-west through to Campbelltown in the south-west, and across the eastern and southern suburbs of Sydney. Whether you're a homeowner in the Inner West or a builder managing a project in the outer suburbs, we can help.

If you're unsure whether we service your area, give us a call on 0493 591 267 and we'll let you know.

Sydney CBD Inner West Roselands Parramatta Penrith Richmond Blacktown Liverpool Campbelltown Sutherland Canterbury Bankstown Hurstville Strathfield Greater Sydney
Bernard Waterproofing team member applying waterproofing membrane to an external wall on a Sydney property

Get in Touch

Need Reliable Waterproofing in Sydney?

Call Bernard Waterproofing Pty Ltd today for professional waterproofing installation, repair, and maintenance across Sydney. We service residential and commercial properties — from single bathrooms to full commercial builds.

Call 0493 591 267 Email info@bernardwaterproofing.au

Based in Roselands, NSW  ·  info@bernardwaterproofing.au