Waterproofing Solutions in Brisbane

Wolfin & Cosmofin Experts

Bringing Industry-Leading Waterproofing to QLD

Projex Group has been Australia’s trusted waterproofing expert for over 35 years, supplying high-performance PVC membranes, Wolfin and Cosmofin, to commercial, residential, and infrastructure projects nationwide.

Now, we are expanding our presence in Queensland, working with accredited contractors in Brisbane, while actively seeking new partnerships with skilled waterproofing professionals. Projex Group is bringing premium waterproofing solutions to Brisbane, the Gold Coast, Sunshine Coast, and regional QLD.

We work closely with design professionals to develop waterproofing systems, offering technical guidance, compliance reviews, and custom waterproofing drawings in accordance with manufacturer specifications. Our expertise and technical support ensure that architects, engineers, builders, and waterproofing consultants receive the highest level of service.

Whether you need trusted waterproofing materials, certified installation, or technical expertise, we are ready to assist with expert solutions and nationwide delivery.

Looking for a trusted waterproofing partner in Queensland? Contact us today!

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Upcoming Events in QLD

Register your interest to attend our next Cosmofin and Wolfin live demonstration and training in Brisbane, we’ll be in touch once dates are confirmed.

Why Wolfin & Cosmofin Are the Ideal Waterproofing Solutions for Queensland

Queensland’s tropical and subtropical climate presents unique waterproofing challenges, from heavy rainfall and high humidity to extreme heat and cyclonic conditions. That’s why Wolfin and Cosmofin PVC waterproofing membranes are the top choice for the region:

Superior Resistance to UV & Heat

Designed to withstand Queensland’s intense sun and high temperatures without degradation.

Fully Welded, Seamless Waterproofing

Ensures zero water ingress, ideal for high-rainfall areas and flood-prone zones.

High Chemical & Root Resistance

Suitable for green roofs, planter boxes, and industrial applications exposed to harsh conditions.

Flexible & Durable

Adapts to thermal movement in buildings, preventing cracks and leaks over time.

Proven Long-Term Performance

Cosmofin comes with a 20-year material warranty, and Wolfin is backed by an exclusive 15-year warranty covering both materials and workmanship. Both Wolfin & Cosmofin systems provide lasting waterproof protection, even in Queensland’s most demanding environments.

Whether you’re working on high-rise developments, basements, podiums, or infrastructure projects, Wolfin and Cosmofin provide unmatched reliability and peace of mind.

Contact Our Team

Partner with Projex Group in Queensland

Projex Group partners with architects, engineers, builders, and waterproofing contractors across Queensland to deliver proven waterproofing systems that meet Australian standards. Whether you need assistance with design specifications, compliance, or technical support, our expert team is here to help you achieve the best result for your project.

We’re also expanding our network of certified Wolfin and Cosmofin installers in Queensland and are actively seeking new business partners. If you’re a contractor, engineer, or builder looking to collaborate with a trusted, industry-leading supplier backed by decades of experience and technical expertise, we’d love to hear from you.

Want to work with us? Contact us today

📍 Servicing Brisbane, Gold Coast, Sunshine Coast & Regional QLD

Past Projex Group Events in Queensland

Projex Group at Construction Connect Brisbane 2025

Projex Group exhibited at Construction Connect Brisbane in August 2025, engaging with industry leaders, engineers, architects, builders and waterproofing specialists. This event was a great opportunity to learn more about our high-performance waterproofing systems, discuss industry challenges, and explore how Wolfin and Cosmofin membranes can benefit Brisbane’s construction projects.

Construction Connect_Waterproofing Queensland_PVC Systems Wolfin and Cosmofin

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Construction Connect Brisbane 2025_Wolfin and Cosmofin PVC Membranes by Projex Group

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Why Choose Projex Group for Waterproofing in Queensland?

Premium Waterproofing Systems

We supply Wolfin & Cosmofin membranes, known for their durability and long-term performance.

Comprehensive Architect & Engineer Support

Our team assists architects, engineers, and waterproofing consultants with waterproofing design, technical drawings, compliance, and specification support.

Nationwide Material Delivery

We can supply products anywhere in Queensland, ensuring quick turnaround times for your projects.

Expand Your Business with Cosmofin in QLD

Qualified waterproofing contractors across Queensland can purchase and install Cosmofin, backed by comprehensive technical support from Projex Group.

Certified Wolfin Contractors Available

Need expert installation? Our certified waterproofing contractors can travel to your site for professional application.

Contact Our Team

Our Waterproofing & Other Engineered Solutions for Queensland Projects

Wolfin & Cosmofin PVC Waterproofing Membranes

Wolfin Membrane – The gold standard Polyester PVC membrane for high-risk and complex waterproofing applications, with a 15-year warranty on materials and workmanship.
Cosmofin Membrane – A cost-effective, high-performance solution for large-scale and residential projects, backed by a 20-year material warranty.

Waterproofing Solutions

Link-Seal Modular Seals (Mechanical Sealing Pipe Penetration Solution)

Designed for sealing pipe penetrations in concrete slabs, walls, and tanks, ensuring a perfect seal against water, oil, and gas.

Link Seal Solutions

Sub-Ballast Mat (SBM) for Railway Construction

A vibration-dampening system for rail infrastructure and heavy-duty construction.

Railway Solutions

Waterproofing Projects in Brisbane

Projex Group has successfully provided waterproofing solutions in Brisbane and has the expertise to deliver high-performance systems for complex designs — including exposed, ballasted, and insulated roofs, balconies, planter boxes, basements, and more. See some of our Queensland projects and typical Wolfin and Cosmofin applications here: