Waterproofing Repair Sydney
Is your building experiencing water leaks or signs of failed waterproofing?
We help building owners repair waterproofing defects properly so the problems don’t return.
We can help you with:
- Waterproofing failures and water leaks
- Membrane replacement works
- Leak investigation and repair
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Why Waterproofing Leaks and Repairs Often Fail
Waterproofing failures often occur when membranes deteriorate over time or when water penetrates through poorly detailed junctions and building interfaces.
Leaks can also develop where membranes have been damaged, installed incorrectly or have reached the end of their service life.
Long-lasting waterproofing repairs require correct preparation, engineered waterproofing systems and experienced installation.
That’s where a waterproofing specialist makes the difference.
Proper waterproofing repairs usually involve:
- Identifying the source of water ingress
- Removing failed membranes
- Preparing substrates correctly
- Installing engineered waterproofing systems
- Detailing critical junctions correctly
Need help understanding what your building needs?
Schedule a Project Desktop Review.
Ben Tran
Class 2 Registered Building Practitioner – NSW
Builder Licence No: 360636C
Building Practitioner No: BUP0004317
Trusted by Leading Strata Managers and Engineers
Types of Waterproofing Repair Services
Waterproofing repair works delivered across residential and commercial buildings.
Balcony Waterproofing Repairs
Failed balcony waterproofing repaired including membrane replacement and detailing upgrades.
Rooftop Waterproofing Repairs
Failed roof waterproofing repaired including membrane replacement and flashing upgrades.
Podium Waterproofing Repairs
Podium waterproofing repaired including membrane replacement and drainage improvements.
Basement Waterproofing
Water ingress through basement walls and slabs repaired using appropriate waterproofing systems.
Leak Investigation
Water ingress investigated to identify the source of leaks before repair works commence.
Waterproofing Membrane Replacement
Failed waterproofing membranes removed and replaced with engineered waterproofing systems.
Waterproofing Repair Project Experience
We deliver waterproofing repair projects across residential and commercial buildings throughout Sydney.
Structural Concrete Remediation
Slab deterioration and reinforcement exposure identified beneath occupied residential levels.
Delivered staged demolition, temporary structural support and engineered reinstatement within a live Class 2 building.
- Lamb & Walters Strata Management
Rooftop Waterproofing Remediation
Widespread membrane failure and ongoing water ingress across an occupied Class 2 residential building.
Delivered staged removal of waterproofing, substrate repairs and installation of new sheet membranes.
- Professional Strata Management
Façade & Waterproofing Upgrade
Façade deterioration and waterproofing failure within a high-density Class 2 residential building.
Delivered staged remediation under live-site conditions, coordinating façade works and waterproofing upgrades while maintaining occupancy.
- Jamesons Strata Management
Trusted by Property Owners Across Sydney
Frequently Asked Questions
What do waterproofing repair services involve?
Waterproofing repair services involve repairing failed membranes and stopping water ingress where leaks have developed.
Works typically include removal of failed membranes, preparation of substrates and installation of engineered waterproofing systems in accordance with specifications.
How much does waterproofing repair cost in Sydney?
Waterproofing repair costs vary depending on the extent of failure, access requirements and the areas affected.
Projects typically range from approximately $20,000 to $1 million, with accurate pricing based on site inspections or engineer-prepared specifications.
How long do waterproofing repairs take?
Timeframes depend on the size of the affected areas and access requirements.
Smaller waterproofing repairs may take a few weeks, while larger membrane replacement projects can take several months.
A construction program is usually prepared before works begin so building owners understand the staging and expected duration.
What is the impact on residents and tenants?
Most waterproofing repair projects are carried out in occupied buildings and works are planned in stages to minimise disruption.
Access to balconies, rooftops or wet areas may be restricted during waterproofing works.
What types of waterproofing repair projects do you typically undertake?
We deliver waterproofing repair projects ranging from targeted leak repairs through to major membrane replacement works.
Typical projects include balcony waterproofing, rooftop waterproofing and podium waterproofing replacement.
Are you a registered building practitioner for Class 2 buildings?
Yes. Atomic Projects is a Class 2 Registered Building Practitioner in NSW, which means we are authorised to carry out regulated building work on Class 2 residential buildings.
For strata apartment building projects, works are delivered in accordance with the Design and Building Practitioners Act and declared designs where required.
Class 2 Registered Building Practitioner (NSW)
Builder Licence No. 360636C
Building Practitioner Registration No. BUP0004317