

uPVC Windows Wellington – High Performance & BRANZ Appraised
Blue Door Construction supplies and installs high-performance uPVC windows in Wellington, engineered specifically for New Zealand conditions. Designed for superior thermal insulation, weather tightness, and long-term durability, our windows are BRANZ appraised and tested to Very High and Extra High wind zone standards.
If you’re replacing aluminium joinery or building new, our double glazed uPVC windows in Wellington deliver warmer, drier, and more energy-efficient homes.
Why Choose Our uPVC Windows for Wellington Homes?
Our uPVC windows can deliver up to 50% better thermal performance than standard thermally broken aluminium, helping create warmer, drier, and more energy-efficient homes. Each window features multi-point locking for enhanced security and superior airtight sealing, while the uPVC frames are low maintenance, UV-stable, and corrosion resistant, making them ideal for Wellington’s conditions. Designed to support compliance flexibility, our uPVC window systems are suitable for modern new builds, renovations, and heritage homes, without compromising on performance or style.

Wellington homes face strong winds, coastal salt air, and cold winters. Our uPVC windows that Wellington homeowners trust are designed to:
- Reduce condensation
- Improve thermal performance
- Lower heating costs
- Withstand high wind zones
- Require minimal maintenance
What uPVC Windows Work Best For You?
Awning Windows
New Zealand’s most popular window style
Awning windows hinge at the top and open outward, allowing ventilation even during light rain. Ideal for living areas, kitchens, and bathrooms.
Features
- Stainless steel friction and safety stays
- Multi-point locking system
- Suitable for Very High wind zones
- Excellent weather sealing


Casement Windows
Flexible ventilation, classic design
Casement windows open inward or outward and can be paired without a central mullion for uninterrupted views.
Features
- Side-hinged design
- Multi-point locking
- Optional fixed mullions
- Ideal for living spaces and bedrooms
Tilt & Turn Windows
European performance with modern flexibility
Tilt & turn windows offer two opening modes — tilt for ventilation, or full inward opening for easy cleaning.
Performance Tested
- Wind load up to 2500Pa
- Water tightness up to 700Pa
Best for
- Multi-storey homes
- Apartments
- Hard-to-reach glazing


Sliding & Stack Windows
Maximum light with minimal intrusion
Designed for spaces where outward opening windows aren’t practical — perfect above kitchen benches.
Features
- Smooth German-engineered rollers
- Space-saving design
- Secure multi-point locking
Bi-Folding Windows
Create wide, open connections
Bi-fold windows fold neatly aside to create large openings between indoor and outdoor spaces.
Features
- 2–8 sash configurations
- Heavy-duty ball-bearing rollers
- Ideal for kitchens and entertaining areas


Bay & Box Windows
Architectural character with added space
Bay and box windows project outward to increase light and interior space while adding visual interest.
Options
- Custom angles available
- Suitable for modern and heritage homes
Raked & Shaped Windows
Custom glazing for architectural designs
Perfect for gables, stairwells, and entryways. Designed with careful attention to flashing and waterproofing.

High-Performance Double Glazing for Wellington Conditions
While uPVC frames provide excellent thermal insulation on their own, it’s the combination of uPVC and high-performance double glazing that truly transforms comfort levels in Wellington homes.
All of our uPVC windows in Wellington are fitted with advanced double glazed units designed to perform in New Zealand’s climate. Double glazing consists of two panes of glass separated by an insulated cavity, which dramatically reduces heat transfer compared to single glazing.
In a city known for strong winds, coastal exposure, and cold winter mornings, this makes a significant difference.
Why Double Glazing Matters in Wellington
Older single-glazed aluminium windows allow rapid heat loss and often create cold internal surfaces that attract condensation. Even standard thermally broken aluminium can struggle in exposed wind zones.
Our double glazed uPVC windows help to; retain warmth during winter, reduce condensation on both glass and frames, improve internal temperature stability, lower reliance on heating systems, reduce dampness and mould risk.
Because uPVC does not conduct heat like aluminium, the interior frame surface remains warmer. When paired with double glazing, this significantly improves overall window performance and day-to-day comfort.
Designed for High Wind Zones
Our systems are BRANZ appraised and tested to Very High and Extra High wind zone standards. The double glazed units are engineered to perform under significant wind pressure while maintaining weather tightness and airtight sealing — essential in Wellington’s exposed suburbs and coastal areas

Ready to improve your home’s comfort?
Whether you’re renovating, replacing old aluminium windows, or upgrading a character home, Blue Door can help.
Get in touch today for a free, no-obligation quote.