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About
Seal Build delivers certified waterproofing for Sydney homes, apartments, and commercial projects. We combine licensed installers, strict Australian Standards compliance, and practical on-site training for builders and owner‑builders.
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Learning & Knowledge Base
Practical waterproofing guides, standards updates and expert articles for builders, owner-builders and property owners.
Save Time and Cash: Wedi’s Waterproofing Revolution for Builders
Learn why engineered Wedi systems can reduce installation time and improve waterproofing consistency on Australian projects.
Read article →Finding Reliable Waterproofing Companies Near Me in Australia
A practical checklist for comparing waterproofing contractors, licences, warranties and compliance.
Read article →The Impact of Water Damage on Homeowners
Understand common causes of water damage, early warning signs and steps that help protect a property.
Read article →What Our Clients Say
Professional waterproofing, clear communication and workmanship our clients are happy to recommend.
Ben came to the rescue again! I truly can’t say enough good things about Ben and his team. They are professional, efficient, clean and simply incredible at what they do. I had a planter box above our garage that was leaking, and Ben’s team seamlessly replaced the entire waterproofing system in less than a week using a root-repellent system. This is the second time I’ve worked with them, and I continue to be impressed by the exceptional quality of their work, attention to detail, honesty and genuine commitment to putting the customer first.
100% recommended. From the initial estimate through to the finished project, it was clear that SealBuild are true experts in waterproofing new balconies. Sammy answered all my questions and gave me complete confidence in moving forward. Ben and his team did an excellent job with the preparation, screeding and waterproofing, meticulously completing each layer and paying close attention to every detail. The finished result looks fantastic and the quality of the workmanship really shows.
We had an excellent experience with SealBuild Waterproofing. From start to finish, the entire process was professional, smooth and well organised. The team was knowledgeable, responsive and took the time to explain the waterproofing process clearly and answer all our questions. The crew arrived on time each day, kept the work area clean and organised, and paid close attention to every detail. Our finished deck looks fantastic. We would definitely recommend SealBuild for balcony and roof waterproofing work.
As a licensed builder, I contacted two other waterproofing companies before choosing SealBuild Waterproofing, and they stood out as the most knowledgeable and professional from the start. They provided a detailed estimate for waterproofing my concrete flat roof and made the entire process easy and straightforward. The work turned out great, and I was especially impressed that the owner personally returned two weeks after completion to inspect the quality and make sure everything was done properly.
SealBuild did a fantastic job on our swimming pool project. Ben and Adam were prompt, professional and easy to work with from start to finish. They communicated clearly throughout the entire process, kept us informed every step of the way, and made the whole experience smooth and stress-free. We’re very happy with the quality of the work and would highly recommend SealBuild Waterproofing to anyone looking for a reliable and professional team.