Allco is here to support resilient architecture through trusted waterproofing solutions and expertise. We bring together technical knowledge, robust systems and considered advice, helping to protect the value, function and future of our built environment.
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Our technical team work alongside architects, specifiers, applicators and main contractors from concept to installation and warranty sign-off. We’re here to provide sound advice, resolve complex junctions, reduce council RFIs, and improve waterproofing outcomes. With practical, real-world guidance and professional support, we simplify the process and equip specifiers with accurate, buildable solutions backed by high-quality documentation.
We supply BRANZ- and CodeMark-approved, fit-for-purpose systems for every application, including sites with contamination, water pressure challenges, or intense climate exposure. Our product range includes global leaders, such as Volclay and Casali, backed by full-system warranties and a technical support team here to help specifiers and applicators achieve robust waterproofing outcomes.
From a specialist supplier to a national technical partner, we’ve built our reputation on service, expertise and dependable systems. Today, we bring together world-class products, local knowledge, and a nationwide network of approved applicators to support complex projects across every sector.
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Jason to be really knowledgeable and personable. His training was exceptionally informative, thorough. employees who has English as a second language found Jason really easy to understand and this is a testament to how Jason explains processes and conducts this training overall. Very impressed!
- Brian McLuskie, Roofing Solutions Waikato Ltd
Thank you for your assistance. It's reassuring to know that we have the support of a supplier who possesses a deep understanding of the system and product and is willing to take practical site conditions into account.
- Steve Banks, Cook Brothers Construction
As a sole practitioner, Architectural Designer, I was able to consult with Jim Boon of Allco about waterproofing requirements for a basement conversion. He was knowledgeable about council requirements and gave helpful advice. He was more than happy to review detailed drawings and returned comments in a timely manner. More than happy to recommend Jim and Allco.
- Wendy Fong, Architectural Designer
Great technical advice and always a prompt and informative response to our queries. A pleasure to deal with.
- Elizabeth Stewart, Ignite Architects
I am happy with Allco's service in working together to achieve a high level of detail.
- Jennifer Hao, Jack McKinney Architects Ltd
The technical team at Allco have been great to deal with technically from a documentation and design input throughout the full process of the design from concept through to construction completion, we’re delighted to see their products on our projects as we know we are getting the full complete service all the time
- BG&E Consultants
The strong partnership we have built with Allco spans several decades and is a testament to the trust, support, and high-quality service they provide.
- Elton Sturmfels, Sansom Construction Systems
Allco has led the way in below ground tanking systems with Allco’s TA team’s support they act as a double check for the client. This tandem approach between applicator and supplier provides the client with confidence that the project is completed to a satisfactory standard.
- Bruce Calway, MPM Waterproofing Services
Having Adrian Crow (Senior Technical Advisor) on as a support person during application, facilitating pre-installation meetings and provide an extra set of eyes and catalogued inspections is a bonus for both us as the contractor as well as the applicator.
- Pat Kinghan, Fletcher Construction
Having Adrian onsite inspecting our Voltex Waterproofing system, overseeing prep work, installation and providing ongoing support and direction has been amazing. He is a pleasure to work with and I look forward to working with him on other projects in the future.
- Shannon Sivewright, Dominion Constructors Ltd
We are so grateful for the support and persistence of Jason and Allco TA team in ensuring our home was completed to the highest possible standard. The onsite visits, support and advice was invaluable. We will certainly be recommending Allco to anyone who is looking for top quality customer service and experience in the waterproofing industry.
- David Hook, Home Owner
We have used Allco solutions on multiple projects in Auckland and Queenstown, ranging from their tanking solutions to their roofing systems. Allco have tailored support providing specific detailing where required for our projects. Their technical support has always been great as well as their approved applicator system and comprehensive warranties.
- Jamie Irvine, Ignite Architects
Thanks to the Allco team for all their ongoing and prompt support with detailing, specifications and training.
- Paul, CoverRight Roofing
Sansom is very proud to have been part of this iconic project with Allco Waterproofing. Allco’s Hydrotech was selected as the ideal membrane due to its proven track record on zero fall roofs and green roof overlay. The continued support and input from Allco’s Technical Advisors and Sansom’s experience, in combination with selecting the right waterproofing membrane, were key factors in the project’s success.
- Steven Van Rhoon, Sansom Construction Systems
One greatest feature of Volclay is that it can be applied to wet surfaces. Timing was everything on this project with the application from all sub-contractors being fast paced, we always had to make constant calls on the weather. This is a challenging site, on the Cardrona Aquifer, so many pumps were used to keep the site as dry as possible during installation.
- Andrew Bull, Watertight Systems
We had a very successful build with a difficult site with a very high water table, salt water no less. During the process we had multiple consultations with Allco but in particular with Adrian who I found immensely helpful, there's definitely no substitute for experience in these sorts of situations. The outcome was fantastic for us and the client Calder Stewart and KiwiRail. The construction company Calder Stewart running the site were very happy to be able to liaise with myself and Allco directly to achieve a mighty result.
- Murray Morgan
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