Passive House Solutions with Trusted Expertise
High-Performance Passive House windows
At Ecowindows, we are proud to be a leading supplier of European high-performance Passive House windows, doors, shading and ventilation systems, specifically designed to meet the unique needs of New Zealand’s diverse climate. With decades of experience in energy-efficient building solutions, we are committed to delivering products that combine world-class performance, exceptional durability, and cutting-edge design.
Looking for a sustainable Kiwi home? Passive House is the answer.
What is a
Passive House?
A Passive House isn’t just a buzzword — it’s the gold standard for energy-efficient, ultra-comfortable living. First developed in Germany and refined worldwide, the Passive House concept slashes energy use without compromising comfort, warmth, or fresh air.
A draughty house is an expensive house. Passive Houses are wrapped up tight with advanced sealing to lock out cold, moisture, and energy loss — verified with a blower door test to meet strict performance standards.
Your windows and doors aren’t just holes in the wall — they’re thermal powerhouses. Passive House-ready windows and doors must deliver:
- Double or triple glazing with high-performance insulation
- Thermally broken frames that fight energy loss
- Airtight seals that leave no room for leaks
Stay cool in summer, soak up the sun in winter. External blinds and shutters stop heat before it hits your glass — keeping your indoor temps comfortable year-round.
Breathe easy. Mechanical ventilation with heat recovery keeps your home fresh while holding onto precious warmth:
- Fresh air all day, every day
- Warmth where you want it
- Less moisture, less mould, healthier living
Why build a
Passive House?
Simple: Passive Houses stay comfy year-round, keep your air fresh, and your power bills low.
The magic happens through clever design — airtightness, super-insulation, smart shading, high-performance windows and doors, and ventilation systems that do the heavy lifting (quietly).
They’re the link between you and the outdoors — and your first line of defence against heat loss. Top-quality windows and doors mean:
- Comfortable interiors without sky-high energy bills
- Natural light without sacrificing performance
- Airtightness you can trust
Why Choose European Windows for Passive Building?
Design Freedom
Tilt & turn, lift & slide, timber, PVC, aluminium – your choice.
Top Thermal Performance
Frames and glass built for serious insulation.
Airtight Champions
Multi-point locks and compression seals for reliable, airtight sealing.
Noise Blockers
32dB sound insulation as standard – peace and quiet, built in.
Bridge-Free
No cold sneaking in through frames or fixings.
Low Maintenance
Built to last with minimal maintenance.
Safe and Secure
Advanced locks and strong frames for peace of mind.
Comfort Boosters
Say goodbye to drafts and hello to stable temperatures and cosy corners.
Your Energy-Efficient Building Partner
Building a Passive House is a team effort — and ECOWINDOWS is on your side from Day One.
Whether you’re chasing full certification or just aiming for next-level energy performance, we’ll help you get there — smart, smooth, and future-proof.
Expert Advice
Architects, builders, homeowners — we’ve got you.
Best Products
Windows, doors, ventilation, shading — Passive House ready.
Full Support
From first sketches to final fit-out, we're with you.
2011
We manufactured New Zealand's first certified Passive House windows.
2012
The first-ever Passive House in New Zealand was built with our high-performance windows and controlled ventilation system.
Until today
The first-ever Passive House in New Zealand was built with our high-performance windows and controlled ventilation system.
Memberships
We are proud members of the Passive House Institute New Zealand (PHINZ) and the New Zealand Green Building Council (NZGBC).
Passive House Window Must-Haves
0.8–1.3 W/(m²K)
0.5–1.1 W/(m²K)
0.03–0.04 W/(m²K)
0.1–0.14
for ultimate solar control
absolutely essential, especially in aluminium frames
