PWSS Remedial Waterproofing Perth
Waterproofing remedial work in Perth

Backed by Perth Waterproofing & Silicone Solutions

Remedial Waterproofing Perth

Expert leak investigation and waterproofing failure repairs for residential, commercial, and strata properties across the Perth metro area.

8+ Years ExperienceLicensed & CertifiedPerth Metro Wide
Book a Free InspectionOur Services
1300 271 425

What Is Remedial Waterproofing?

Remedial waterproofing is the process of diagnosing and repairing existing waterproofing failures in buildings. Unlike new-build waterproofing applied during construction, remedial work targets problems that have developed over time - failed membranes, cracked joints, deteriorated coatings, and water ingress through walls, balconies, roofs, and podiums.

Remedial Waterproofing Perth is a division of Perth Waterproofing & Silicone Solutions, delivering investigation-led repair solutions across residential, commercial, and strata properties in Perth, Joondalup, Fremantle, Rockingham, and the wider metro area.

Water Where It Shouldn't Be

Persistent leaks through balconies, roofs, walls, or podiums that keep coming back after surface-level fixes.

Previous Repairs That Failed

Silicone patches, paint-over jobs, or band-aid fixes that never addressed the root cause of the failure.

No Clear Diagnosis

Water appearing far from the actual entry point, making it difficult to pinpoint where the waterproofing has broken down.

Strata & Compliance Pressure

Building managers and strata bodies needing documented investigations, scope reports, and certified repair solutions.

Waterproofing Repair Services Across Perth

From initial leak investigation through to full membrane replacement, our remedial waterproofing services cover every stage of diagnosis and repair. We service residential homes, apartment complexes, commercial buildings, and strata properties in Perth, Joondalup, Osborne Park, Subiaco, Canning Vale, Fremantle, Rockingham, Mandurah, and Midland.

Core

Leak Investigation

Systematic investigation to trace water ingress back to its source - not just where it appears. We use methodical testing to identify the exact failure point before any repair begins.

Core

Failed Membrane Replacement

Full removal and replacement of waterproofing membranes that have cracked, delaminated, or reached end of life in balconies, roofs, wet areas, and podiums.

Core

Balcony Waterproofing Repairs

Targeted repairs to leaking balconies including membrane replacement, tile re-bedding, drainage correction, and joint sealing across residential and strata properties.

Core

Roof Leak Rectification

Investigation and repair of roof waterproofing failures including failed flashings, deteriorated coatings, ponding water issues, and membrane breakdowns.

Core

Water Ingress Repairs

Comprehensive repairs where water is entering through walls, windows, expansion joints, or below-ground structures. We solve the cause, not just the symptom.

Crack Injection

High-pressure injection of polyurethane or epoxy resins into concrete cracks to seal active leaks and restore structural waterproofing integrity.

Concrete Remediation

Repair of spalling, carbonation damage, and water-affected concrete including patching, resurfacing, and protective treatment to prevent further deterioration.

Core

Internal/External Waterproofing Repairs

Remedial waterproofing solutions for both internal wet areas and external building envelopes, including shower recesses, planter boxes, retaining walls, and facades.

Expansion Joint Repairs

Replacement and re-sealing of failed expansion joints in car parks, podiums, and building facades where movement has caused waterproofing breakdown.

Protective Coating Systems

Application of high-performance protective coatings to concrete, steel, and masonry surfaces to prevent water penetration and extend asset life.

Discuss Your Projector call1300 271 425

Trusted Across Perth

From state-level sporting venues to commercial strata properties, our remedial waterproofing work is backed by Perth Waterproofing & Silicone Solutions' track record of delivering projects that last.

WA Hockey Stadium grandstand before waterproofing — bare concrete substrate
Before
PWSS team applying waterproof membrane to stadium grandstand seating area
Applying
Close-up detail of membrane and anti-slip coating application on grandstand steps
Detail
Completed waterproof membrane and anti-slip coating on WA Hockey Stadium grandstand
Finished
Bentley, WA

WA Hockey Stadium

PWSS delivered a full waterproofing and anti-slip coating system for the grandstand at WA Hockey Stadium. The project involved meticulous substrate grinding to expose bare concrete pores, application of Adflex WBE primer, Rimseal 170 UV-stable membrane, and two coats of Deckpro 80 non-slip top coat — ensuring the venue is safe for public foot traffic and protected against Perth's intense UV exposure.

Scope of Works

  • Grandstand waterproof membrane
  • Anti-slip coating system
  • UV-stable protective top coat
  • Concrete substrate preparation

Result

High-performance waterproofing with a durable, non-slip, trafficable finish ready for top-level competition. Delivered on time with full client satisfaction.

Original tiled walkway at 2 Goderich Street before remedial waterproofing works
Before
PWSS team grinding substrate during walkway demolition at 2 Goderich Street East Perth
Demolition
Completed waterproofing membrane on common walkway at 2 Goderich Street
Membrane
Finished over-tile waterproofing system on balcony at 2 Goderich Street East Perth
Finished
East Perth, WA

2 Goderich Street

A multi-area remedial waterproofing project across a commercial property in East Perth. PWSS identified that the existing topping screed could not be waterproofed over, requiring full epoxy screed replacement. Steps were converted to ramps, and a 5-coat over-tile system was proposed for the balcony areas, saving the client approximately $30,000 compared to full screed removal.

Scope of Works

  • Common walkway waterproofing
  • Balcony membrane replacement
  • Bin area concrete remediation
  • Roof plant waterproofing
  • Screed and ramp installation

Result

Comprehensive waterproofing across walkways, balconies, bin stores, and roof plant. PWSS installed additional screeds at their own cost where ponding water was discovered during the works.

Deteriorated walkway and exposed concrete before remediation at Hillarys strata complex
Before
Substrate preparation and power washing at Hillarys strata complex
Preparation
WPA Aqualay waterproofing membrane installation across 1000m² of walkways in Hillarys
Waterproofing
Completed tiled walkways and communal areas at Hillarys strata complex
Finished
Hillarys, WA

Strata Complex Remediation

PWSS was engaged to remediate and waterproof more than 1,000m² of external walkways and communal areas at a strata complex in Hillarys. The project involved removal of existing tiles and pavers, mechanical grinding to remove residual adhesives, drainage rectification, and re-profiling of concrete to create compliant falls. A full WPA Aqualay waterproofing system was installed with critical detailing to drains, penetrations, movement joints, and perimeter upstands.

Scope of Works

  • Over 1,000m² of remediation works
  • Tile and paver removal
  • Drainage repairs and fall correction
  • WPA Aqualay waterproofing system
  • Full re-tiling of all areas

Result

A fully remediated and waterproofed external environment with new tiling across all walkways and communal areas. Durable, compliant, and built for long-term performance.

Have a similar project? We'll inspect it for free and provide a detailed scope of works.

Discuss Your Project

Why Perth Property Owners Choose PWSS

When waterproofing fails, you need a team that diagnoses the cause - not one that patches the symptom. Here's what sets us apart from general builders and maintenance contractors.

Investigation-Led Approach

We trace every leak back to its source before recommending any repair. No guesswork, no band-aid fixes - just methodical diagnosis that solves the problem the first time.

Documented Scope Reports

Every project receives a detailed scope of works with photographic evidence, product specifications, and clear pricing. Ideal for strata managers needing committee approval.

Backed by PWSS

Remedial Waterproofing Perth is a division of Perth Waterproofing & Silicone Solutions - operating for over 8 years and trusted by some of Western Australia's largest builders, contractors, and home builders.

Quality Products & Systems

We use high-performance membrane systems from trusted manufacturers including Rimseal, Deckpro, and WPA - specified for each project's unique conditions.

Direct Communication

You deal directly with the people doing the work. No project managers relaying messages - our team is on-site, accessible, and accountable from start to finish.

A Reputation for Quality and Detail

From WA Hockey Stadium to East Perth commercial properties, our work speaks for itself. We build long-term relationships with clients who value precision.

Book a Free Inspectionor call1300 271 425

Remedial Waterproofing Across Perth

Remedial Waterproofing Perth services residential, commercial, and strata properties throughout the Perth metropolitan area. From Joondalup in the north to Mandurah in the south, and from Fremantle on the coast to Midland in the east - our team covers the full metro region for leak investigations, membrane replacements, and all remedial waterproofing repairs.

Perth

CBD and inner suburbs including Northbridge, East Perth, and West Perth.

Joondalup

Northern corridor covering Joondalup, Wanneroo, Clarkson, and surrounding suburbs.

Osborne Park

Light industrial and commercial precincts across Osborne Park and Stirling.

Subiaco

Inner western suburbs including Subiaco, Shenton Park, and Nedlands.

Canning Vale

Southern corridor covering Canning Vale, Willetton, and Riverton.

Fremantle

Port city and surrounds including South Fremantle, East Fremantle, and Cockburn.

Rockingham

Coastal southern suburbs from Rockingham through to Baldivis and Warnbro.

Mandurah

Southern reach covering Mandurah, Pinjarra, and the Peel region.

Midland

Eastern corridor including Midland, Swan View, Guildford, and the hills district.

Don't see your suburb?

We regularly work outside these core areas. If you're in the greater Perth region, give us a call - we'll let you know if we can help.

Check Availability

PWSS Remedial

Perth Waterproofing & Silicone Solutions

Water damage won't wait. Neither should you.

Call now for a free site assessment anywhere in the Perth metro area.

Book a Free Inspection1300 271 425

Frequently Asked Questions

Common questions about remedial waterproofing, our process, costs, and service areas across Perth.

Remedial waterproofing is the process of diagnosing and repairing existing waterproofing failures in residential, commercial, and strata buildings. Unlike new-build waterproofing applied during construction, remedial work focuses on identifying the source of leaks, failed membranes, water ingress, and structural moisture issues - then implementing long-term repair solutions that address the root cause.

Still have questions?

Our team is happy to discuss your specific situation.

Get in Touch

Get a Free Assessment

Tell us about your waterproofing issue and we'll get back to you within one business day with next steps. Or call us now to speak with someone directly.

Call us

1300 271 425

Email us

info@perthwss.com.au

Hours

Mon–Fri 7:00–17:00 AWST

Service area

Perth, WA 6964, Australia

Covering the full Perth metro region

Remedial Waterproofing Perth is a division of Perth Waterproofing & Silicone Solutions. Licensed, certified, and insured.

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