A trusted, professional solution to share with any client experiencing a leaking commercial roof. We do the work — you look good for making the introduction.
Leaking commercial roofs are one of the most common and costly problems facing property owners and facility managers in Australia. Left untreated, a failing roof membrane leads to:
RTT Sealant is one of Queensland's most experienced commercial waterproofing contractors. With over 17 years on Australian commercial rooftops — from shopping centres and airports to government education facilities and telecommunications infrastructure — we know what it takes to protect a building for the long term.
Our cold-applied elastomeric membrane system is permanent, professional, and warranted — not a patch, not a temporary fix.
Our system is trusted by:
Optus · Brisbane Airport · Dreamworld · Coles (Mooloolaba) · QLD Dept of EducationCold-applied. No open flame. Minimal disruption to tenants and operations.
We have completed waterproofing projects on over 25,000 m² of commercial roofing across Australia.
| Year | Project | Sector | Scale |
|---|---|---|---|
| 2025 | Optus Rosebery | Telecommunications | 5,000 m² |
| 2025 | AMPOL Refinery, Brisbane | Industrial / Petrochemical | 1,000 m² |
| 2025 | Brisbane Airport — Box Gutters | Aviation / Infrastructure | 200 lin. m |
| 2022 | Draculas | Hospitality / Venue | 1,000 m² |
| 2021 | Dreamworld | Tourism / Entertainment | 2,000 m² |
| 2018 | Coorparoo Education Precinct | QLD Dept of Education | 3,400 m² |
| 2018 | K Town Shopping Centre | Retail | 1,300 m² |
| 2017 | Mooloolaba Shopping Centre (Coles) | Retail | 5,500 m² |
| 2017 | Ozcare — Brisbane CBD & Townsville | Aged Care / Healthcare | 2,500 m² |
When you refer a client to us, you're putting your name behind a team that won't let you down.
Making a referral takes minutes. We take it from there.
Share our details with your client or connect us via email. No paperwork required — just a conversation.
Our team inspects the roof, assesses the scope, and provides a no-obligation quote directly to your client.
RTT Sealant manages the entire project from surface prep through to warranty. Your client gets a solution that lasts.
Get in touch with our team and we'll take it from here. We respond to all referral enquiries promptly.
View our before-and-after project photos, system specifications, QBCC licence, and insurance certificates.
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