
WATERPROOFING

Safe, Practical Delivery
Many waterproofing projects take place on live commercial sites where access, safety and coordination are critical. APS combines experienced tradespeople, detailed planning and strong Health & Safety systems to deliver waterproofing works safely and efficiently, including projects requiring height access, staged works or complex site logistics.
We work with a range of waterproofing systems depending on the building type, substrate and environmental exposure. This includes membrane recoating, remedial waterproofing repairs, deck and balcony waterproofing, roof membrane replacement and preventative maintenance solutions designed to extend the life of existing systems.

Waterproofing Systems and types

Leak Detection & Assessments
Not all leaks are straightforward. Water can travel through cavities, membranes and building materials before becoming visible internally. Our team carries out detailed waterproofing investigations to identify likely failure points, assess existing systems and recommend practical repair or replacement options based on the condition of the building.
Our Approach to Waterproofing
Waterproofing issues can cause significant damage if left unchecked. From internal leaks and membrane failure through to long-term deterioration of the building envelope, understanding the cause of the problem is critical to selecting the right solution.
Our approach focuses on identifying likely failure points, assessing existing waterproofing systems, and recommending practical repair, remediation, or replacement options based on the condition of your asset.

Leak Detection & Waterproofing Assessments
The visible leak isn't always where the problem starts. Leaks can originate from roofs, decks, balconies, façades, joints, penetrations, or other areas of the building envelope before becoming visible internally. Our investigations focus on identifying likely sources of water ingress and providing practical recommendations for repair, remediation, or replacement.

Waterproofing Repairs, Remediation & Replacement
Once the source of the issue has been identified, the next step is determining the most appropriate path forward. Depending on the condition of the existing system, this may involve targeted repairs, remediation works, or complete replacement. We assess the options available and recommend practical solutions aligned with the asset and its long-term performance requirements.

Practical Solutions, Not Just Waterproofing Systems
The best waterproofing solution isn't always the most complex. We consider access requirements, building operations, budget constraints, future maintenance needs, and long-term performance to develop practical solutions that work for your building, your budget, and your long-term asset goals.
Wondering if you have a waterproofing issue?
Check out some common examples of waterproofing failure below.

01
Internal Water Ingress
Water entering the building can indicate a failure within the waterproofing system, building envelope, or associated detailing.

02
Persistent Leak Issues
Leaks that continue to reappear after repairs may indicate a broader waterproofing failure rather than an isolated defect.

03
Ponding Water
Water remaining on waterproofed surfaces for extended periods may contribute to accelerated deterioration and reduced system performance.

04
Membrane Deterioration
Exposure to weather, UV conditions, and ageing can contribute to the deterioration of waterproofing membranes over time.

05
Cracking or Failed Detailing
Movement, ageing, and environmental conditions can affect waterproofing details, joints, and termination points.

06
Increasing Maintenance Requirements
Frequent leak investigations and ongoing repair costs may indicate it is time to consider a more comprehensive waterproofing solution.
The Process Behind the System
Waterproofing projects often involve balancing technical requirements with practical considerations such as access, building operations, budget, and long-term maintenance objectives. Our process is designed to identify the most appropriate solution for the building and the way it is used.






Investigate
We assess the building, identify likely failure points, and investigate the cause of the waterproofing issue.

Evaluate
Existing waterproofing systems, asset condition, and project requirements are reviewed to determine the most appropriate path forward.

Recommend
Based on the findings, we recommend practical repair, remediation, or replacement solutions suited to your asset, your budget, and your long-term maintenance goals.

Install
Once a solution has been agreed, works are planned and deliveredto the scope of selected waterproofing system, project requirements, and building operations.

QA and Handover
Completed works are reviewed before handover, ensuring you have visibility of the completed works and confidence in the outcome.
Waterproofing Solutions We Deliver
Not sure which waterproofing system your asset is going to need? We can help.

TPO Membranes
High-performance single ply membrane commonly used across large commercial roof areas.
✔ Heat welded seams
✔ UV & chemical resistant
✔ Reflective & energy efficient

Torch-on Membranes
Durable multi-layer membrane system suited to a wide range of waterproofing applications.
✔ Strong & reliable
✔ Multi-layer protection
✔ Proven long-term performance

Liquid Membranes
Flexible seamless waterproofing suited to complex details and difficult-to-access areas.
✔ Seamless application
✔ Highly flexible
✔ Fast curing systems

Mechanically Fixed
Single-ply membrane systems secured mechanically to suit large commercial roof areas and exposed environments.
✔ Lightweight systems
✔ Suitable for large roof spans
✔ Secure fixing methods

Warm Roof Systems
Roofing systems designed to improve thermal performance while protecting the waterproofing layer beneath.
✔ Improved insulation performance
✔ Reduced condensation risk
✔ Integrated roof build-up systems

Resin Coating Systems
Durable seamless coating systems suited to exposed areas, walkways and high-wear surfaces.
✔ Seamless application
✔ Chemical & wear resistant
✔ Suitable for complex detailing

Carpark Coating Systems
Trafficable waterproof coating systems designed for vehicle areas, ramps and exposed parking structures.
✔ Vehicle traffic durability
✔ Slip resistant finishes
✔ Weather & wear protection

Waterproof Repellants
Penetrating treatments used to help reduce moisture absorption across masonry and porous surfaces.
✔ Moisture resistance
✔ Breathable protection
✔ Suitable for concrete & masonry

Paint Coating Systems
Protective coating systems used to help manage moisture exposure across selected surfaces and structures.
✔ Protective surface barrier
✔ UV resistant finishes
✔ Suitable for refurbishment works

Cementitious Systems
Rigid waterproofing systems commonly used across concrete substrates and below-ground applications.
✔ Suitable for concrete surfaces
✔ Durable bonded finish
✔ Below-ground applications

Epoxy Injection Systems
Repair systems used to seal cracks and help manage water ingress through concrete structures.
✔ Crack sealing solutions
✔ Structural repair support
✔ Water ingress management

Sealants and Flashings
Detailing systems used around joints, penetrations and transitions where waterproofing continuity is critical.
✔ Joint & edge protection
✔ Penetration sealing
✔ Flexible detailing systems
Understand

