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Torch On Waterproofing

At AWS Services, we deliver long-lasting, high-performance torch on waterproofing systems for commercial and government properties across Melbourne, Perth, and surrounding regions.

Commercial Bitumen Membrane Installations Across Melbourne & Perth

At AWS Services, we deliver long-lasting, high-performance torch on waterproofing systems for commercial, industrial properties and residential rooftops across Melbourne, Perth and surrounding regions. With decades of experience in the construction and remediation industry, we understand that waterproofing is not a one-size-fits-all solution—it must be tailored to your structure, climate, and performance requirements.

Our torch applied waterproofing systems use proven bitumen torch on membranes to protect against water ingress in flat roofs, balconies, retaining walls, planter boxes, podiums, and below-ground areas. This method is trusted for its strength, versatility, and resilience in Australia’s harsh and varied environments.

Where It Works Best

Torch on membrane waterproofing is particularly well suited to:

  • Flat and low-slope commercial roofs

  • Balconies and rooftop terraces

  • Retaining walls and basements

  • Concrete planter boxes and podium slabs

  • Rooftop car parks and plant decks

  • Wet areas in commercial or high-traffic spaces

Because it’s so versatile, we use it on both new builds and remediation projects. In most cases, we’re called in when waterproofing has failed—or where the risk of failure just isn’t worth taking.

Why Torch On Waterproofing?

For flat roofs, podiums, and other exposed structures, waterproofing is one of the most important decisions you’ll make. Done right, it keeps buildings dry and protected for decades. Done poorly, it leads to costly repairs, structural damage, and recurring maintenance headaches.

Torch on waterproofing is a system we trust because it works. It’s based on bitumen-based membrane sheets that are heated and fused onto the surface using a gas torch. This creates a dense, seamless barrier that stops water getting through—no matter how harsh the weather gets or how much foot traffic the surface sees.

Over time, we’ve found this method to be one of the most dependable for Australian commercial buildings. It holds up well to the sun, wind, rain, and even the kinds of extreme heat we sometimes get across both Melbourne and Perth. Once it’s on, it stays on.

Commercial & Strata Projects

Rooftop Waterproofing

Membrane: Torch on

SP 40654 (NSW)

Terrace Slab Tanking

Membrane: Torch On

Lowther Hall (VIC)

Rooftop Waterproofing

Membrane: Polyurea

Austin Hospital (VIC)

Torch On vs Liquid Waterproofing

There’s no one-size-fits-all solution for waterproofing. But when clients ask us the difference between torch on membranes and liquid systems, here’s what we usually tell them:

Torch on membranes are physically thicker and generally tougher. They’re factory-made to a uniform thickness, and when installed correctly, they don’t rely on weather to cure. That makes them more predictable on site and far more resilient over time.

Liquid systems are faster to apply in some settings and more flexible around odd shapes and penetrations—but they rely on ideal drying conditions and skilled applicators to get consistent coverage. They can also wear down faster in exposed areas.

We use both systems where appropriate, but when it comes to flat commercial roofs, we often recommend torch on for the extra durability and peace of mind it brings.

Our Strata & Body Corp Buildings Services

Rooftop Carpark Waterproofing

Concrete Structure Waterproofing

Building Roof Waterproofing

Our Process

Torch on waterproofing is only as good as the surface it’s applied to—and the people applying it. Our approach is methodical, and we don’t cut corners. Every project is different, but here’s how the process usually works:

  1. We inspect and prepare the surface — cleaning, drying, and priming it as needed.
  2. We apply the membrane using heat, bonding each layer securely to the substrate.
  3. We detail all joints, upturns, and penetrations carefully to make sure there are no weak points.
  4. We test it, often with flood tests or moisture checks.
  5. We hand over detailed documentation so you’ve got a full record of the installation and warranty.

All work is done to meet Australian Standards (AS 4654.1 and 2), and we’re licensed, insured, and experienced in working on live, complex commercial sites.

Servicing Melbourne, Perth & Surrounds

Whether your site is in inner-city Melbourne, regional Victoria, Perth Metro, or outlying WA towns, we can help. We’ve worked with builders, property managers, and government agencies across both states on a range of waterproofing scopes—new construction, make-good, remedial, and preventative.

We’re used to working on:

  • Government facilities
  • Health and aged care buildings
  • Shopping centres
  • Commercial and industrial units
  • Multi-residential developments
  • Education and community infrastructure

If you need a contractor who can deliver to spec, coordinate with multiple trades, and provide a system that will hold up long-term, we’re ready to talk.

Get In Touch

If you need a waterproofing system that lasts—and a contractor that can deliver it—get in touch. We’re available for projects across Melbourne, Perth, and nearby regions, and can quote directly or work with you on tendered scopes.

Whether it’s new construction or remedial, we’ll help you find the right waterproofing solution and deliver it with professionalism and care.

Call 1300 665 325
Call 1300 665 325
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FAQs about Torch On Waterproofing

Torch on waterproofing is a method that uses heat to apply a bitumen-based membrane onto a prepared surface. The membrane comes in rolls and is melted onto the surface using a torch, creating a strong, fully bonded seal.

It works well because it creates a seamless, flexible, and durable barrier that water can’t get through. Once it’s installed properly, it doesn’t peel, crack, or bubble under pressure or heat. That’s why it’s widely used on flat commercial roofs and similar areas.

Yes—flat roofs are one of the most common areas where we install these systems. Flat or low-pitch roofs tend to collect water and cop a lot of sun and thermal movement. The torch on membrane handles all of that without failing, which is why we often recommend it over alternatives.

In climates like Melbourne, where conditions can swing between hot and cold quickly, or Perth, where UV exposure is high, torch on systems hold up very well over time.

We have a qualified team that’s experienced in hot works and commercial construction. We don’t take shortcuts. Every site gets a tailored safety plan, and we follow all the rules around working with open flame. That includes using fire blankets, extinguishers, and monitoring the work zone carefully.

We also comply with the relevant standards—AS 4654.1 for design and AS 4654.2 for installation. All our systems come with compliance documentation and warranty support.

Yes. It’s often used under tiles or screed on balconies and podiums, and behind retaining walls to prevent moisture ingress from surrounding soil. It’s also ideal for planter boxes or terraces where water exposure is constant.

The key in those cases is proper detailing—making sure edges, joints, and penetrations are sealed correctly. That’s where experience counts.

If installed properly and maintained periodically, a good-quality torch on system can last anywhere from 20 to 30 years. It’s one of the longest-lasting options in commercial waterproofing.

Like any system, it’ll need inspections from time to time, and minor repairs may be needed as part of long-term maintenance. But in terms of reliability, it’s one of the most cost-effective waterproofing choices out there.

We’re not just a waterproofing company—we’re a construction and remediation contractor with decades of experience on commercial and government projects. That means we understand scheduling, site coordination, budget pressures, and compliance. And we don’t disappear when the job’s done.

Our clients trust us because we do what we say we will. We back our work with warranties, detailed QA reports, and a practical, problem-solving mindset that fits real-world construction.

In 2025, we’re seeing developers, facility managers, and asset owners focus more than ever on lifecycle costs and durability. Torch on systems fit that mindset. They’re not the cheapest up front, but they offer excellent return on investment because they don’t fail easily.

In commercial settings—especially flat roofs and rooftops that carry services or plant—it’s critical to get waterproofing right the first time. Torch on membranes have a proven track record, and we expect them to remain a preferred solution for years to come.