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About Us

Melbourne’s most trusted caulking provider with over 11 years experience.

NKA Caulking has delivered clean, professional silicone work across Melbourne since 2013. In more than a decade we’ve completed 5 000 + jobs—from apartment towers and new-school builds to warehouses, factories and bathroom renovations.

At NKA we’re a tight-knit crew—small enough for strict, hands-on quality control, yet seasoned enough to handle anything from a single vanity seal to a 900-metre warehouse slab. Builders choose us for three things: reliability, competitive metre rates and expert knowledge in sealant selection and application. Because the same experienced NKA team stays on your project from start to finish—working to one documented set of company standards—you get consistent, neat, colour-matched caulking with the required silicone specified for each job specification.

What we specialise in

  • New residential builds & multi-unit developments
    Duplexes, extensions & renovations

  • Fibreglass-pool surrounds & outdoor wet areas

  • Industrial joints, saw-cuts & large commercial slabs


Founded by Nathan Allan, NKA was built on one goal: be the final trade on-site that actually cares about the finish. Builders trust us because we show up, work clean and leave every job truly ready for hand-over.

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NKA Caulking Official Logo

Our Company

NKA Caulking provides professional silicone and hybrid-seal caulking across Greater Melbourne. From new builds and renovations to fibreglass pools and large commercial slabs, we seal homes, units, warehouses and fit-outs throughout the north, west, east and inner-city. Based in Tullamarine, our crew regularly services key suburbs such as Northcote, Coburg, Essendon, Box Hill, Brighton and Sunbury—plus all neighbouring areas.

Operating Hours

Mon - Fri: 7am - 6pm
​​Saturday: 8am to 3pm

​Sunday: Closed

© 2025 by NKA Caulking. Powered and secured by Nash

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