Providing specialist products & services for high performing spaces.
5Merchants is a provider of high-performing and PassivHaus products and services to the New Zealand market, enabling our clients to live out their vision of creating healthy and comfortable environments where kiwis can thrive.
Products.
A high performance home needs high performance materials that have been tried and tested in the real world. We stock only the best high-performing products at competitive prices, to ensure your build meets the stringent high-performing standards.
Services.
Knowing how to install and use the right products is just as important as buying the products themselves. 5Merchants also offers services that ensure your ventilation and window design and installation are done properly, your building is airtight, and your plans will actually work as they should, ticking all the right boxes.
The core components of PassivHaus explained
Each of these principles in their own right has benefits, but when used in harmony with each other, bring together the best results for the most energy efficient, healthy and comfortable spaces.
We believe in these principles so much that we've built our entire brand upon them. All of our products are categorized by their principle, each with their unique colour and icon, making finding and purchasing what you need a breeze.
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Latest News
BuildNZ 2025
BuildNZ is New Zealand’s largest trade-only exhibition for people who design, construct and manage the country’s building and facilities...Read more
4 facts about SIGA Wetguard®
Launched in autumn 2020, SIGA Wetguard® protects timber building elements during construction...Read more
Window renovations & sealants - Tips from the expert
Renovating windows and ensuring they're sealed against drafts is essential...Read more
New: The most efficient downlights for high performing homes
Our exclusive new range of downlights are fully sealed, ensuring zero heat loss and no unwanted airflow, making them ideal for high-performance projects...Read more
CASE STUDY: The Chodge - A high-performance home built with our SIGA products
Perched above the banks of Lake Whakamaru in South Waikato, The Chodge is more than a home - essentially, it’s a house within a house...Read more
New: The only airtight flush box in NZ
Available now, our new airtight flush box is the only airtight option in New Zealand! Unlike standard options, this flush box allows you to minimise air flow through power points and lighting switches and create a more airtight home using plasterboard configurations - no need for additional membranes or tapes...Read more
What is a good air tightness test result?
Understanding what constitutes a good air tightness test result is crucial for homeowners aiming to create energy-efficient, comfortable, and healthy living spaces...Read more
Home Performance Audit
It’s well known that the majority of homes in New Zealand are cold, damp and inefficient...Read more
New: White Grommets
Our new Fentrim® White Grommets are robust and highly adhesive, perfect for ensuring secure seals on circular penetrations, especially for pipe or cable joints...Read more
New: Rissan 430 Grey Corners
Our Rissan® 430 Grey Corners are a durable single-piece corner accessory that provides airtight and watertight corners for windows and doors...Read more
Introducing Stiebel Eltron & our expanded product range
At 5Merchants, we have always been driven by a single mission: to bring the highest quality, energy-efficient products to the NZ market, ensuring that all homes can enjoy the warmth, dryness, and comfort they deserve...Read more
Exciting updates from Baden and Barry’s European journey!
We want to share updates from Baden and Barry Stewart’s recent journey to Europe...Read more
BuildNZ 2023
BuildNZ is New Zealand’s largest trade-only exhibition for people who design, construct and manage the country’s building and facilities...Read more