At Zyron Waterproofing, we specialise in residential waterproofing solutions that protect homes from costly water damage. With over 35 years of combined experience, we deliver compliant waterproofing for bathrooms, laundries, ensuites, balconies, and other internal wet areas. Every project is completed with precision, verified throughout installation, and supported by comprehensive documentation for complete peace of mind.
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.
Zyron is built on over three decades of specialist waterproofing experience.
Our standard is absolute: every internal wet area must be installed correctly, verified thoroughly, and documented to an audit-ready standard.
We deliver a documentation-backed system engineered to meet strict compliance requirements, reduce project risk and builder liability, and perform as intended for the life of the structure.
Bathrooms and other wet areas are exposed to water every day. While tiles and grout form the visible finish, the waterproofing system underneath provides the protection the structure actually relies on.
External areas face constant exposure to weather. Rain, heat, temperature changes and movement can place ongoing pressure on balconies, terraces and exposed roof surfaces.
Structural areas often face more demanding moisture conditions than ordinary finished surfaces. Retaining walls can remain in direct contact with damp soil, podium slabs may support paving or landscaping, and below-ground concrete can experience prolonged moisture exposure.
Some structures are designed to remain in contact with water continuously. Swimming pools and water tanks require waterproofing systems capable of protecting the underlying structure from long-term water exposure.
Beautiful landscaping can also create challenging waterproofing conditions. Planter boxes and built-in garden beds contain soil that can remain wet for extended periods due to irrigation and rainfall.
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.
0451 669 344
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.
