Building defect inspections and waterproofing consultants in Sydney

Wardell Group specialises in finding the cause of leaks and building defects, with diagnostic inspections, water testing and waterproofing consulting for strata, commercial and residential buildings.

What do you need to find out?

Find a leakWater testing to trace where it comes in Defect inspectionCracking, staining, dampness or movement Membrane testingCheck a new or existing membrane Waterproofing adviceDesign review and compliance inspections
NSW Licence394344C
RegisteredBuilding Practitioner BUP0002965
Over 100 yearsCombined expertise
ISO certifiedQuality, environment and safety

Tell us what's happening. We'll be in touch.

  • 1
    We find the cause first

    Visual inspection, construction analysis and testing before anything is opened up.

  • 2
    A clear report

    Site inspection and report carried out by a building expert.

  • 3
    Then the right fix

    If repairs are needed, a remedial engineer prepares the scope of works and a registered building practitioner carries out the repairs.

How we find the cause

Water testing

Flooding a surface for a set time to find leaks.

Electronic leak detection

Finds pinholes and breaches in a membrane without flooding.

Moisture metering

Measures moisture levels in building materials.

Thermal imaging

Detects dampness and concealed defects.

Ultrasonic thickness testing

Measures membrane thickness without damaging it.

Adhesion testing

Checks the membrane is bonded to the substrate.

Substrate inspections

Moisture, imperfections and drainage checked before a membrane goes down.

Compliance inspections

Waterproofing checked against Australian Standards.

Targeted destructive testing

Lifting tiles or removing bricks only where testing points to a hidden defect.

I highly recommend Wardell for their exceptional expertise and professionalism in waterproofing. … Wardell is a trusted partner for reliable waterproofing solutions.

Sebastian K., Director, KA Design Studio

Their deep expertise in waterproofing, combined with a thorough and proactive approach, makes them a standout in the industry.

Gyula T., Director, Toth + Partners

Inspect. Test. Report.

1. Visual inspection

Cracks, dampness, discolouration and movement checked by a building expert.

2. Testing

Non-destructive testing first, with targeted destructive testing only where needed.

3. Report and next steps

An inspection report, then a path to an engineer-designed repair if one is needed.

Waterproofing consulting covers design review against building codes and standards, material selection, documentation and compliance inspections, for owners, strata managers, architects and builders.

Wardell Group, established to raise the standard of building remediation and construction.

Book an inspection (02) 8077 3142

Office 3A, 254 Wardell Road, Marrickville NSW 2204. Monday to Friday, 9am to 4pm.

Wardell Remedial Pty Ltd, ABN 95 663 972 610, NSW Licence 394344C