Our team comprises of contract builders and project management specialists in both the multi-residential and commercial sectors, working from inception to the final construction stages.

Servicing the Sydney metropolitan area, we are attentive, meticulous, and reliable, with 50 years of combined industry experience.

We are builders who also know how important it is to build relationships with each client. We encourage a collaborative process with our clients from the early stages of any project and ensure our processes incorporate honesty, respect, balance and consideration.

Our core belief is that each building block is as important as the finished piece. Every single element should come together to create a whole that is harmonious within itself.


The Design and Builders Practitioners and Residential Apartment Buildings (Compliance and Enforcement Powers) Act 2020  has impacted the strata space and changed the way remediation works are undertaken . Wardell Remedial are registered building practitioners who have taken on board these changes and created a streamlined system through experienced partnerships to simplify the whole process from design to completion of your remedial project.

In partnership with structural engineers and consultants, we collaborate along the 3 stages of the remedial process – drawing upon building, waterproofing and structural/remedial engineering expertise to provide the best outcomes for clients.


Design and Compliance Consultants

The introduction of the Design and Builders Practitioners Act 2020 and Residential Apartment Buildings (Compliance and Enforcement Powers) Act 2020, brought with it greater accountability for architects, builders, and developers when it comes to waterproofing design, testing and compliance.

Wardell Consulting utilises building and waterproofing experts to deliver guidance to architects, developers and builders at varied stages of projects.


On-Site Testing Inspections

We use a variety of on-site testing and inspection techniques in providing the best advice on waterproofing and guiding clients to achieve the best outcomes while reducing rectification costs:

  • Compliance Inspections (Comp): these inspections ensure that the waterproofing work complies with Australian Standards, including termination detail, heights, and water stop angle details.
  • Water Testing (WAT): this method involves flooding surfaces with water for a certain time period to test for leaks.
  • Ultrasonic Thickness Testing (ULT): this method uses an ultrasonic thickness gauge to measure the total thickness of a waterproof membrane without damaging it.
  • Electronic Leak Detection (ELD): a non-destructive test that can be used as a substitute for a flood test, ELD detects coating film breaches and pinholes that are not readily visible by creating an electric circuit through non-conductive membranes.
  • Adhesion Testing (ADH): a test to ensure the bond of a waterproofing system to a substrate, involving the destruction of a small area of the system.
  • Substrate Inspections (SUB): Before applying the membrane, these inspections check the concrete substrate for moisture levels, imperfections, and adequate drainage.
  • Seam Probe Testing (SPT) for sheet membrane systems: to verify correct welding, all laps are probed for breaches during this test.