Commercial investigation. Evidence before repairs.

Commercial Leak Diagnostics Perth

Waterseal provides non-destructive water-ingress investigation, moisture mapping and pathway analysis for commercial, strata and civil sites. Findings are documented in a written report with photographs and a defined repair scope, so remediation is based on evidence rather than guesswork.
HVELD membrane testing carried out by Waterseal on a Perth roof
Leak Diagnostics Specialists

Find the Source Before Commercial Repairs Begin

Where water appears in a commercial building is rarely where it entered. Water travels through slabs, cavities, joints and membranes before it becomes visible.

Waterseal investigates water ingress using non-destructive equipment including HF Sensor microwave moisture scanners, array scanning for large slabs, thermal imaging, acoustic pipe leak detection, drain cameras and borescopes. Where the membrane is compatible, high voltage electronic leak detection (HVELD) locates breaches precisely.

Findings are issued as a written report with moisture mapping, photographs and a recommended repair scope, so remediation is targeted, defensible and priced against a defined problem rather than a guess.

Diagnostic Services

Commercial Leak Diagnostics Services

HVELD Testing

HVELD Testing

High-voltage electronic testing pinpoints breaches in suitable non-conductive waterproofing membranes without flood testing.

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Thermal Imaging

Thermal Imaging

Thermal patterns help identify suspect areas and guide closer investigation when conditions are suitable.

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Moisture Mapping

Moisture Mapping

Non-destructive readings map the extent and movement of moisture through walls, floors and building materials.

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Membrane Integrity Testing

Membrane Integrity Testing

Targeted testing checks whether a membrane system is continuous and helps locate defects requiring repair.

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Building Envelope Investigation

Building Envelope Investigation

We investigate roofs, facades, joints, penetrations and interfaces where water may enter or travel.

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Post-Repair Verification

Post-Repair Verification

Follow-up testing helps confirm repaired areas and supports a more confident project handover.

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Detailed concrete channel beside the Byford rail track before waterproofing
Signs & Symptoms

Water Ingress Problems We Investigate

Leaks can travel laterally, follow reinforcement, move through cavities or appear well away from the original defect. A structured investigation helps separate the visible symptom from the underlying cause.

We investigate both active leaks and concealed moisture where the source is uncertain.

Technical Capability

Evidence-Led Diagnostics for Complex Buildings

Reliable diagnosis comes from choosing the right method for the membrane, substrate, access and site conditions. Waterseal combines visual assessment with electronic and moisture-based testing to build a clearer picture of where water is entering and how it is travelling.

The result is a targeted investigation designed to support better repair decisions-not a generic scan or a guess based only on the visible damage.

FLIR thermal imaging used during a Waterseal leak investigation
Our Process

Our Commercial Leak Diagnostics Process

Heritage Surface Cleaning project work in Perth

Project Review

Review symptoms, site history, photos and known waterproofing details before attending.
Heritage Surface Cleaning project work in Perth

On-Site Assessment

Inspect the affected area, surrounding construction and potential water-entry points.
St Christophers Bicton waterproofing work in Bicton, WA, project photo 4

Diagnostic Testing

Apply the most suitable HVELD, thermal or moisture-testing method for the conditions.
Murdoch Uni Bld 245 waterproofing work in Murdoch, WA, project photo 4

Map & Verify

Trace patterns, compare readings and narrow down the likely source or breach location.
Waterseal technician preparing concrete joints on the Byford rail extension viaduct

Findings & Report

Explain what was found, the affected areas and any limitations or further checks required.
Detailed concrete channel beside the Byford rail track before waterproofing

Repair Pathway

Recommend targeted remedial work and, where appropriate, verification after repair.

Specialist Investigation Equipment

Waterseal selects the diagnostic method to suit the substrate, construction and suspected moisture pathway across commercial, strata, institutional and civil sites. Readings, moisture mapping, thermal patterns, photographs and recorded inspections are assembled into evidence-backed findings, a written investigation report and a defined repair scope.

HVELD is one method within the wider investigation process and is used only where the membrane system and site conditions are suitable. The phrase leak detection remains relevant, but the service extends well beyond simply locating a visible leak.

HF Sensor Moist 350B microwave moisture scanner used by Waterseal

HF Sensor Moist 350B

Microwave moisture profiling through tiles, screeds and concrete using interchangeable sensor heads at different depths.

HF Sensor Moist Scan 100 array moisture scanner used by Waterseal

HF Sensor Moist Scan 100

Rapid array scanning and moisture mapping across large floors, roof decks, podiums and slabs.

Gann BL structural moisture meter used by Waterseal

Gann BL Moisture Meters

Close-range structural moisture measurement for masonry, plaster, render and timber, with ambient and dew-point readings.

FLIR thermal imaging used during a Waterseal leak investigation

FLIR Thermal Imaging

Thermal patterns help identify areas of interest, hidden water paths and saturated materials before direct moisture testing confirms the result.

Sewerin Stethophon 04 acoustic leak detector used by Waterseal

Sewerin Stethophon 04

Acoustic investigation helps distinguish concealed pressurised pipe leaks from membrane and building-envelope failures.

Ridgid SeeSnake drain and pipe inspection camera used by Waterseal

Ridgid SeeSnake Camera

Recorded internal inspection of drains, downpipes and stormwater lines identifies cracks, displaced joints and drainage defects.

Jeet QT360 articulating borescope used by Waterseal

Jeet QT360 Borescope

Articulating camera inspection through small openings documents membranes, flashings, cavities and concealed voids without broad demolition.

HVELD membrane testing carried out by Waterseal on a Perth roof

HVELD & Targeted Testing

High voltage electronic leak detection pinpoints compatible membrane breaches, supported by flood testing and targeted moisture testing where appropriate.

Project Experience

Commercial Waterproofing Experience Across Perth & WA

Waterseal’s commercial waterproofing experience supports informed investigation across complex membranes, roofs, podiums, plant rooms and remedial building projects.

The Thornlie childcare centre investigation shows how non-destructive testing helped locate defects in a suspended-slab membrane.

5 Mill Street, Perth waterproofing work in Perth, WA, photo 1
Perth, WA

5 Mill Street, Perth

Waterseal installed an approximately 800 m² single-ply TPO recovery membrane overlay to the retained roof at 5 Mill Street, Perth.
Purpose Built Student Accommodation – Stirling Street – Roof & Podium Planters waterproofing work in Perth, WA, project photo 4
Perth, WA

Purpose Built Student Accommodation – Stirling Street – Roof & Podium Planters

Waterseal installed a reinforced, root-resistant tanking system to rooftop and podium planters at a Perth student accommodation development.
WAIS Remedial Works waterproofing work in Perth, WA, project photo 6
Perth, WA

WAIS Remedial Works

Waterseal completed remedial waterproofing at the Western Australian Institute of Sport to address water ingress through a suspended slab above the car park and amenities.
Douro St West Perth waterproofing work in West Perth, WA, project photo 7
West Perth, WA

Douro St West Perth

Waterseal repaired cracking and renewed a deteriorated waterproof coating over a suspended concrete roof slab at a West Perth strata property.
Applications

Where Commercial Leak Diagnostics Is Used

Our diagnostic methods can be used across a wide range of waterproofed and water-exposed areas, subject to the membrane and site conditions.

Roofs & Roof Decks

Locate membrane breaches and investigate recurring roof leaks without relying on broad exploratory demolition.

Balconies, Terraces & Podiums

Investigate leaks affecting occupied areas below tiled, paved or membrane-lined external spaces.

Basements & Undercrofts

Assess concealed damp, water paths and below-ground moisture affecting walls, floors and adjoining areas.

Wet Areas

Investigate suspected bathroom, shower and internal wet-area leaks before defining the repair scope.

Car Parks & Lift Pits

Trace water ingress through slabs, joints, penetrations and waterproofed structural areas.

Planter Boxes & Roof Gardens

Test suitable membrane systems where flood testing is difficult or creates additional risk.

Retaining Walls

Map moisture patterns and investigate likely ingress paths through below-ground construction.

Tanks & Water Features

Support membrane integrity checks and targeted diagnosis for water-retaining structures.

HVELD membrane testing carried out by Waterseal on a Perth roof
HVELD & Moisture Mapping

Two Technologies. One Clearer Diagnosis.

HVELD uses an electrical field to locate breaches in suitable dry, non-conductive waterproofing membranes. When the test current reaches a defect, the equipment identifies the breach location so it can be marked for targeted repair.

Moisture mapping measures moisture patterns at and below the surface. Used alongside site observations and thermal imaging, it helps show the extent of concealed damp and the direction water may be travelling through a building element.

These methods solve different parts of the problem. Waterseal selects and combines them according to the construction, membrane and site conditions.

Why Choose Us

Why Choose Waterseal for Commercial Leak Diagnostics in Perth?

Waterproofing Expertise

Our diagnosis is informed by practical membrane, detailing and remedial waterproofing experience.

Targeted Testing

We select methods around the surface, system and site conditions rather than applying one test everywhere.

Non-Destructive Approach

Where suitable, testing narrows down suspect areas before unnecessary opening-up or demolition.

Commercial & Residential

Support for builders, strata, facilities teams, property owners and residential clients across Perth.

Clear Next Steps

Findings are explained in practical language with a repair or further-investigation pathway.

Repair Verification

Testing can support confirmation of targeted repairs where the membrane and conditions allow.

FAQs

Commercial Leak Diagnostics FAQs

Often, yes. Non-destructive moisture testing and thermal imaging can narrow down suspect areas before finishes are removed. The appropriate method depends on the construction and site conditions.

High Voltage Electronic Leak Diagnostics uses an electrical field to identify breaches in suitable dry, non-conductive waterproofing membranes. A detected breach can then be marked for targeted repair.

HVELD may be suitable for torch-on membranes, liquid-applied systems, bituminous coatings and certain sheet membranes. Waterseal confirms suitability after reviewing the membrane and substrate.

Waterseal investigates membrane failures and building-envelope water ingress across commercial buildings, strata developments, institutional facilities, roofs, podiums, plant rooms and civil structures throughout Perth and WA.

The initial service focuses on identifying the likely source and extent of the issue. Waterseal can then recommend or quote suitable remedial waterproofing work where it falls within our scope.

In many situations, yes. Depending on the membrane and site conditions, targeted re-testing can help verify that repaired defects have been addressed.

The report records site observations, moisture readings or mapping, relevant photographs, the most probable source and a recommended repair scope. The detail is designed to support targeted pricing and informed decisions.

No. HVELD is one diagnostic method and is appropriate only for compatible exposed membrane systems. Waterseal selects scanning, thermal, acoustic, camera, flood or electronic testing according to the substrate and suspected problem.

Need Commercial Leak Diagnostics in Perth?

Tell us what you are seeing, where the leak appears and any relevant project or repair history. Waterseal will review the information and recommend the most suitable next step for inspection and testing.
Leak diagnostics

Membrane Integrity Testing

See how targeted testing can help locate defects in compatible waterproofing systems before repair work begins.