New Zealand’s Largest JMF-Certified Timber Joinery Producer — 2024

In May 2024, Dando Doors & Windows was formally recognised by JMF New Zealand as the largest producer of JMF-certified NZS 4211 timber joinery in the country, based on the highest annual tag-volume across 118 licensed manufacturers nationwide.

For decades, Dando has consistently ranked among the top three JMF-compliant timber door and window producers in New Zealand. Being recognised as the #1 producer nationally is a milestone our whole team is proud of — and reflects both our long history in the industry and our commitment to quality, compliance and reliability.

Who is JMF New Zealand — and why it matters

JMF New Zealand Ltd is the industry benchmark for compliant timber joinery.

JMF manages a national network of licensed manufacturers and provides the tested systems, performance standards and technical documentation used to manufacture NZS 4211-certified timber doors and windows.

JMF certification ensures that joinery complies with:

New Zealand Building Code requirements
Weather-tightness and wind-zone performance
Air leakage and durability standards
Thermal and structural performance where specified

JMF also provides:

A fully tested NZS 4211-compliant joinery suite
Installation and glazing guidance
Compliance manuals, thermal calculators & documentation for councils
A traceable tag system for every certified door and window

Choosing a JMF-licensed manufacturer means choosing independently tested, performance-verified joinery, not a one-off or untested system.

What it means to be the largest JMF producer in New Zealand

Every certified NZS 4211 timber door or window receives an official JMF compliance tag. These tags are:

individually registered
traceable to the manufacturer and job
recognised by councils as proof of performance

Tag-volume is the industry’s independent, auditable measure of production scale.

Over the 12-month period leading up to 31 May 2024, Dando Doors & Windows:

ordered and used the highest number of JMF tags in New Zealand
was placed in JMF’s highest manufacturer tier (Tier 4)
was congratulated directly by JMF New Zealand for holding the largest annual tag-volume nationwide

In simple terms:

no other JMF-licensed manufacturer in New Zealand produced more certified NZS 4211 timber doors and windows than Dando in that period.

A second-generation family business with a national reach

Dando Doors & Windows is a second-generation family-owned business, operating from central Auckland and servicing the entire country since the 1980s.

Our work spans:

residential homes and heritage villa restorations
new-build bungalows and architectural houses
hospitality and commercial projects, including
— Mabrick Restaurant and Wedding Venue
— golf resort villas and bungalows

From small one-off orders to complex multi-unit developments, our focus has always been consistent:

high-performing timber joinery that lasts, delivered with accuracy, reliability and care.

Scale, quality and cost-efficiency — how we achieve it

Lean production systems

We operate lean manufacturing, designed to maximise flow and minimise delays:

Standardised JMF details throughout the factory
Structured quality checks
Efficient job-tracking and communication

This results in predictability, consistency and fewer on-site issues for builders.

State-of-the-art machinery

Dando has invested heavily in:

CNC machining centres
modern tooling and processing equipment
digital production and measurement systems

This gives us:

exceptional accuracy
repeatable tolerances
the capacity for both high volume and high-detail craftsmanship

Value that flows to partners

Our technology + systems = factory efficiency.

Factory efficiency = value for customers.

Partners benefit from:

competitive pricing
faster turnaround
fewer remakes and call-backs
smoother council documentation and approvals

A national No. 1 ranking — and momentum for the future

Being recognised in May 2024 as New Zealand’s largest producer of certified NZS 4211 timber joinery confirms the scale and progress our team has built — and now we are building on that momentum.

We are scaling production capacity, expanding machine capability and strengthening our lean systems so that Dando continues to lead the market into the future.

This is why long-standing partners such as Placemakers and Mitre 10 continue to trust Dando across their customer networks and multiple project streams throughout New Zealand.

Builders and homeowners choose these merchants because they depend on consistent performance — and our reliability continues to make Dando the go-to timber joinery partner inside their ecosystem.

For architects, builders and developers, the message is simple:

partner with a manufacturer that is moving forward, not standing still.

The same systems that earned Dando the #1 national ranking are now powering the next stage — bigger capability, faster delivery and even stronger performance-value for our partners.

Dando leads the industry today — and is investing to lead it tomorrow.

It’s a good time to be working with us.

Timber joinery for your next project

Whether you’re:

designing a hospitality venue
developing multi-unit villas or bungalows
building a new family home
or upgrading to high-performance timber windows and doors

Dando Doors & Windows brings together:

second-generation craftsmanship
NZS 4211 + JMF certification you can rely on
industry-leading machinery and lean production systems
and the proven performance of New Zealand’s largest JMF-certified timber joinery producer

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