The directory
All NZ double glazing installers, by region
GBI-registered, WANZ-aligned. Pick your region for the local installers and a brief on what's distinctive about glazing there.
Auckland
3 installers · 1100 HDDTasman Glazing Ltd
Tasman Glazing
Long-established Auckland retrofit specialist — drops sealed IGUs into existing timber sashes without replacing the frame.
Mt Wellington
- Retrofit IGU
- Timber joinery
- Heritage
Kōwhai Window Co Ltd
Kōwhai Window Co
North Shore full-frame replacement — aluminium joinery for 70s/80s brick-and-tile, with marine-grade coatings for the coast.
Albany
- Full-frame
- Aluminium joinery
- Thermally broken
Isthmus Glass Ltd
Isthmus IGU
IGU manufacturer first, installer second — supplies units to the trade and direct to homeowners.
Penrose
- Retrofit IGU
- Full-frame
- New build
Wellington
2 installers · 1450 HDDHarbour Thermal Glazing Ltd
Harbour Thermal
Glazing-and-air-sealing combined — treats Wellington's wind-driven heat loss as a single package.
Wellington Central
- Retrofit IGU
- Timber joinery
- Heritage
Hutt Valley Windows & Doors
Hutt Valley Windows
Full-frame aluminium replacement for the Hutt's 60s/70s tract housing and 90s subdivisions.
Lower Hutt
- Full-frame
- Aluminium joinery
- Thermally broken
Canterbury
2 installers · 1850 HDDPlains Glazing Ltd
Plains Glazing
Post-quake new-build glazing specialist — H1 Climate Zone 5 spec is their default rather than an upgrade.
Christchurch Central
- New build
- Full-frame
- Thermally broken
Rolleston Retrofit Glazing
Rolleston Retrofit
Selwyn-district retrofit specialist for the cold pre-2010 housing stock.
Rolleston
- Retrofit IGU
- Timber joinery
- Aluminium joinery
Waikato
1 installer · 1300 HDDBay of Plenty
2 installers · 1100 HDDMoana Glazing Bay of Plenty
Moana Glazing
Coastal-zone aluminium specialist — marine-grade powder coatings as standard.
Mt Maunganui
- Full-frame
- Aluminium joinery
- Thermally broken
Rotorua Window Works
Rotorua Window Works
Geothermal-zone specialist — sulphur-resistant fittings and seal materials.
Rotorua
- Retrofit IGU
- Full-frame
- Aluminium joinery