Waterproofing & Membrane Specialists in NSW
Stop leaks before they become structural problems. DeltaCorp Remedial diagnoses, repairs and installs waterproofing and membranes to keep water out of your building — from bathrooms to rooftops.
Led by a director with 10+ years remedial experience
Waterproofing for balconies, roofs, bathrooms, basements & more
Strata, commercial & residential buildings across NSW
- Leak investigation, remedial waterproofing & new membrane installs
- Internal wet areas, external decks, façades, roofs & below-ground spaces
- Water- and acrylic-based systems to minimise environmental impact
- Clear scopes, fixed-price quotes and compliant installation
Share a few details and photos and we’ll be in touch promptly with next steps.
Get an Expert
Waterproofing Assessment
Tell us about your building and façade concerns so we can review and arrange an assessment.
Why Waterproofing Problems Can’t Be Ignored
Water finds the smallest weaknesses — and once it’s in, it rarely gets better on its own. Failed or missing waterproofing can quickly lead to:
- Visible leaks and damage to ceilings, walls and finishes
- Rotting timbers, swelling joinery and damaged floor coverings
- Concrete cancer, corrosion and structural deterioration
- Mould growth, odours and health complaints from occupants
- Insurance and compliance issues if problems are left unresolved
Whether it’s a leaking balcony, rooftop, bathroom or basement, early intervention with the right waterproofing system almost always costs less than dealing with long- term structural damage and repeat repairs.
Send us photos and we’ll help you work it out.
Waterproofing & Membrane Services at a Glance
DeltaCorp Remedial provides waterproofing services that protect both the structure and appearance of your property from water damage, helping to uphold the integrity of the building and extend its life. We’re committed to using water- or acrylic-based products where suitable to minimise negative environmental impacts while delivering durable performance.
PROTECT YOUR BUILDING
Prevent water ingress that leads to concrete cancer, corrosion and decay.
REDUCE FUTURE COSTS
Fix the cause properly rather than patching over symptoms.
IMPROVE AMENITY & APPEARANCE
Stop leaks and staining that frustrate occupants.
MINIMISE DISRUPTION
Works planned around residents, tenants and building operations.
SUPPORT COMPLIANCE & INSURANCE
Professional installation and documentation.
Where We Install & Repair Waterproofing
From bathrooms to rooftops, DeltaCorp Remedial helps keep moisture out and extend the life of your property.
Group and expand your
existing list of areas:
- Balconies & terraces - remedial and new waterproofing to stop leaks into apartments and living areas below.
- Roofs & roof decks - flat roofs, roof gardens and other roofs exposed to the elements.
- Paved and tra cable areas - podiums, paved courtyards and external walkways.
- Façades & external walls - waterproofing and protective systems to limit water penetration through vertical surfaces.
Below ground
& ancillary areas
- Basements & below-ground structures - membranes and waterproofing to resist hydrostatic pressure and moisture ingress.
- Garages & car parks - waterproofing to protect vehicles, storage and structural elements.
If your area isn’t listed, we can still help — our team will assess the
substrate and recommend the most suitable waterproofing approach.
Waterproofing & Membrane Systems We Use
We select waterproofing systems based on where they’re being used (internal, external or below ground), the substrate, exposure conditions and how the space is used.
Sheet Membranes
Torch-on and self-adhesive sheet membranes are often used for:
- Roof gardens and landscaped roofs
- Planter boxes
- Foundations and other critical areas
These systems provide robust, continuous protection and are ideal where we need durable, long-term performance and controlled installation.
Bentonite Clay-Based Sheet Systems
Bentonite clay-based sheets are designed for below-grade vertical and horizontal
structural foundation surfaces such as:
- Backfilled concrete walls
- Masonry block walls
- Earth-covered roofs
- Tunnels and similar structures
They swell on contact with water to help form a tight seal around the structure and resist groundwater ingress.
Liquid & Acrylic Membrane Systems
Water- and acrylic-based membranes are often used where flexibility, crack-bridging
and detailing are important — such as balconies, bathrooms and complex junctions.
We favour products that minimise environmental impact while maintaining robust performance.
DeltaCorp o ers a wide range of methodologies and products, ensuring each waterproofing solution is genuinely fit for the fix, not just the easiest product to apply.
How Our Façade Upgrade Process Works
Every building and façade is unique, but our process is designed to keep your project safe, efficient and clearly communicated from start to finish.
Trusted for Remedial & Waterproofing Works Across NSW
Clients choose DeltaCorp Remedial for professionalism, quality finishes and the ability to deliver on schedule and budget.
A Remedial Specialist Focused on Long-Term Waterproofing Outcomes
DeltaCorp Remedial was founded in 2021 by Managing Director Dean Luland. Dean brings over a decade of experience in the remedial industry and business management, with a focus on delivering practical, long-lasting outcomes for clients.
From heritage façades to modern high-rise and commercial assets, our team understands how to balance design, constructability and cost to achieve the right outcome for your building.
Waterproofing Pricing & What to Expect
Waterproofing and membrane works can range from small, targeted repairs to full-system replacements across large areas. Rather than guessing, we provide tailored quotes based on what your building actually needs.
When we prepare your quote, we consider:
- Size and location of the areas to be waterproofed
- Substrate type (concrete, masonry, existing tiles, etc.)
- Access requirements (sca olding, EWPs, rope access)
- Desired appearance and materials (e.g. cladding systems, finishes)
- Whether existing finishes need to be removed and reinstated
- Project staging, timeframes and how we’ll minimise disruption
You’ll receive a clear, itemised quote with no hidden extras, so you can explain the scope and cost to committees, owners and other stakeholders.
Waterproofing and Membranes FAQs
It depends on where the waterproofing has failed and how the area was built. In some cases we can carry out targeted remedial works; in others, removing tiles and reinstating the waterproofing system is the only reliable solution. We’ll explain your options and the pros and cons of each.
In some situations, compatible waterproofing systems can be installed over existing tiles, provided preparation and detailing are done correctly. In other situations, tiles need to be removed. We’ll assess the condition of the existing surface and recommend the most appropriate approach.
Timeframes vary with the size of the area, the system used and curing times. Smaller bathroom or balcony works may be completed over several days, while larger roofs or podiums take longer. We’ll provide an indicative program and explain how long areas need to stay off-limits.
In most cases, occupants can remain in the building while waterproofing works are carried out. We plan noisy or disruptive tasks, access routes and temporary exclusions to minimise impact and maintain safety.
Yes. We can provide scopes, photos and completion documentation to support insurance claims or strata committee decisions, and coordinate with other consultants where required.
DeltaCorp Remedial is based in Tuggerah and provides remedial and waterproofing services to buildings across NSW. If you’re unsure whether your property is within our service area, contact our team and we’ll confirm.
Yes. As a remedial specialist, we often combine waterproofing with concrete repairs, façade upgrades and building defect repairs to address both the symptoms and underlying causes in one coordinated project.
Ready to Stop Leaks
and Protect Your Building?
Whether you’re dealing with an active leak, recurring damp patches or planning preventative works on a balcony, roof or basement, our team can help you understand your options and plan the right waterproofing solution.
Prefer to talk now? Call 1300 698 579 or email info@deltacorpremedial.com.au and our team will be in touch.