Zyron is built on over three decades of specialist waterproofing experience and a higher standard for internal wet areas.
In homes, wet areas, balconies, and exposed surfaces must be installed correctly, verified thoroughly, and documented before they are covered or completed. Too often, waterproofing is completed and proof is chased later, after screed and tiles are down. That uncertainty creates risk for builders, certifiers, and owners alike.
Zyron was created to remove that risk. We deliver a documentation backed waterproofing system where every critical stage is controlled, recorded, and verified at the right time.
The result is waterproofing that is compliant, transparent, and built to last.
35+ Years of Combined Experience
Trusted waterproofing specialists for new homes and renovations across Sydney.
Fully Compliant Waterproofing
Waterproofing systems installed to Australian Standards and industry best practices.
Verified Quality
Every project is inspected, documented, and verified for complete peace of mind.
Protect your home with expert waterproofing solutions for bathrooms, ensuites, laundries, balconies, and internal wet areas. Zyron Waterproofing delivers compliant installations backed by experience, quality checks, and detailed documentation for lasting protection.
Every project begins with a review of site conditions, sequencing, and detailing requirements. We confirm suitability before installation not during it.
Waterproofing is delivered as a coordinated system, with preparation, detailing, application, and curing managed together.
Critical stages are checked and documented throughout the install. A digital record is provided at completion, confirming system, coverage, and execution.
Where higher-risk areas or project conditions require it, additional detailing or verification can be applied.
Bathroom Waterproofing
Professional waterproofing solutions designed to protect bathrooms from leaks and moisture damage.
Have A Project in Mind?
Planning a new build or renovation? Contact Zyron Waterproofing today for a professional assessment and a reliable waterproofing solution tailored to your project.
There isn’t one “best” waterproofing method for every bathroom. Systems range from liquid membranes to sheet systems and waterproof boards, and the right approach depends on the project, substrate, and detailing requirements.
What separates a good result from a failure is not just the product, but the level of control, detailing, and verification before it’s covered. We work with both liquid-applied and sheet membrane systems, selecting the most suitable option for each project.
When paired with proper preparation, stage verification, and clear documentation, either system can deliver a consistent, transparent, and reliable outcome.
We specialise in internal wet area waterproofing, including bathrooms, showers, ensuites, and laundries. If your project includes other areas, we will confirm suitability based on the substrate, exposure conditions, and the required system.
Sometimes, but in most cases, removing the old membrane and re preparing is the safer option. Waterproofing is only as reliable as what it bonds to, and existing membranes can be contaminated, degraded, or incompatible. We will assess what is there and recommend the safest approach, typically grinding back and re preparing to a clean, stable surface. If an overlay is genuinely suitable, we will confirm it on site.
For domestic wet areas, requirements are set by the National Construction Code (NCC) and commonly reference AS 3740, Waterproofing of domestic wet areas. For external above ground areas, other standards may apply.
It depends on the membrane system and the required dry film thickness (DFT). The correct approach is to apply the number of coats needed to achieve the manufacturer’s specified thickness and coverage, not to guess a number.
You can apply a membrane, but compliant wet area waterproofing depends on preparation, detailing, compatibility, curing conditions, and correct thickness, as well as protecting the membrane before it is covered. If you need a reliable outcome and clear documentation, professional installation is usually the safest option.
