Looking for expert waterproofing services in Melbourne? At NKA Caulking, we provide fully licensed, compliant waterproofing solutions for residential, commercial, and industrial projects. We use high-performance membranes that meet Australian Standards (AS 3740 & AS 4654), protecting your structure from water ingress, leaks, damp, and costly long-term damage.

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From bathrooms and balconies to basements and retaining walls, we ensure every part of your project is sealed properly — the first time.

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Why Choose NKA for Waterproofing in Melbourne?

• Fully licensed & insured waterproofing specialists

• Compliant with AS 3740 (internal wet areas) & AS 4654 (external applications)

• Trusted by Melbourne builders, renovators, and developers

• Detailed prep, clean finish, no shortcuts

• Prompt service across all Melbourne suburbs

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Our Waterproofing Services Cover:
 

🔹 Internal Wet Area Waterproofing

We waterproof bathrooms, laundries, kitchens, and showers using premium Class III membranes and mould-resistant silicones — fully compliant with AS 3740.

🔹 Balconies, Rooftops & External Surfaces

We apply UV-resistant, flexible membranes to balconies, terraces, and rooftop spaces to prevent leaks and structural damage — in line with AS 4654.

🔹 Basements, Subfloors & Retaining Walls

Below-ground waterproofing using negative-side and positive-side membrane systems to stop rising damp, seepage, and lateral moisture entry.

🔹 Planter Boxes & Garden Beds

Protect walls and footings from soil moisture with correctly detailed waterproofing membranes inside planter boxes and built-in garden beds.

🔹 Foundations & Slab Edges

We apply durable waterproof coatings to footings, blockwork, and slab edges to prevent moisture intrusion at the base of your structure.

🔹 Swimming Pools & Water Features

Leak-proof membrane systems for fibreglass, tiled, or rendered pools — designed to prevent structural damage and water loss.

🔹 External Wall Waterproofing & Cladding Joints

Vertical surface protection and joint sealing to prevent wind-driven rain and moisture ingress behind facades or rendered walls.

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Servicing All of Melbourne
 

NKA Caulking provides waterproofing across northern, western, and eastern suburbs of Melbourne — including Craigieburn, Epping, Thomastown, Tullamarine, Preston, Reservoir, and more.

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Whether you’re sealing a bathroom in a townhouse or waterproofing slab edges on a commercial build, we’ve got the experience and gear to get it done properly.

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Book Trusted Waterproofing in Melbourne
Call NKA Caulking today or click Get a Quote to speak with our licensed waterproofing team.
We respond within 24 hours and provide fully itemised, obligation-free quotes across Melbourne.