Protecting the built environment, from the ground up.

Waterproofing done right – with design support, complete systems and on-site advice

Below ground applications

Explore waterproofing systems for below-ground elements including slabs, piles, lift pits and walls

Above ground applications

From a simple deck to a suspended carpark structure, Allco provides robust waterproofing solutions for every above-ground application

Carpark Solutions

Hard-wearing bitumen-based compound designed to waterproof deck carparks

Mastic Asphalt

Durability, flexibility and waterproof capabilities makes it excellent choice for many applications

Damp Proof Applications

Protective barrier against moisture and vapor, preventing dampness from rising into a building's structure

Applications

Rooftops, terraces and below ground – we have a system for every waterproofing application.

Product Selection

A complete range of products to protect every part of a structure and critical junctions.

Approved applicators

Search our nationwide network of accredited applicators, trained to Allco warranty standards.

One

Supplier

One

Applicator

One

Warranty

2514073

m2 of membrane installed

6714

Completed Projects

4817

TA Site Visits

11202

Specifications Written

124

Installers Nationwide

About Allco

The team at Allco supports resilient architecture through trusted waterproofing systems and technical expertise. We bring together practical knowledge, proven products and considered advice – helping protect the value, performance and future of our built environment.

Technical services

From early system selection to on-site guidance and warranty approval, our technical team supports specifiers and applicators deliver watertight results, strengthen compliance, and protect the performance of buildings.

Sustainability

Allco provides Environmental Product Declarations (EPDs) and runs carbon-conscious business operations to support a more sustainable industry. We have a full set of product EPDs for accurate carbon reporting.

FAQs

Frequently asked questions to help with your enquiries

Our Technical Advisory (TA) team provides expert guidance, support, and on-site assistance to our approved applicators and main contractors during the installation of our Volclay products. The TA team conducts pre-install meetings and regular site inspections to ensure the quality of installation is carried out by our applicators. By closely monitoring applicator workmanship, project compliance, and site conditions, our team can identify potential issues and provide advice on the best ways to solve or mitigate problems. This proactive approach allows for timely adjustments and corrections, preventing costly rework or repairs.

Allco’s TA (Technical Assistance) Team offers practical, hands-on support throughout a project’s lifecycle. From pre-installation meetings and site inspections to installation oversight and post-installation guidance, they ensure systems are installed correctly and in compliance with Allco’s specifications.

Yes. Our team can assist with system selection, technical detailing, and custom specification support to ensure the waterproofing solution meets project requirements and NZ Building Code compliance. This includes reviewing plans and advising on complex interfaces or sequencing challenges.

To request support, simply contact your Allco Account Manager or use the contact form on our website. Our TA Team will coordinate with your project schedule to provide the assistance needed, whether it's a design consultation, applicator training, or on-site troubleshooting.

What our customers say

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