NZ Double Glazing

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 HDD

Tasman Glazing Ltd

Tasman Glazing

Long-established Auckland retrofit specialist — drops sealed IGUs into existing timber sashes without replacing the frame.

Mt Wellington

26+ yrs · GBI · WANZ
  • 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

14+ yrs · GBI · WANZ
  • 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

21+ yrs · GBI · WANZ
  • Retrofit IGU
  • Full-frame
  • New build

Wellington

2 installers · 1450 HDD

Harbour Thermal Glazing Ltd

Harbour Thermal

Glazing-and-air-sealing combined — treats Wellington's wind-driven heat loss as a single package.

Wellington Central

11+ yrs · GBI · WANZ
  • 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

19+ yrs · GBI · WANZ
  • Full-frame
  • Aluminium joinery
  • Thermally broken

Canterbury

2 installers · 1850 HDD

Plains Glazing Ltd

Plains Glazing

Post-quake new-build glazing specialist — H1 Climate Zone 5 spec is their default rather than an upgrade.

Christchurch Central

13+ yrs · GBI · WANZ
  • New build
  • Full-frame
  • Thermally broken

Rolleston Retrofit Glazing

Rolleston Retrofit

Selwyn-district retrofit specialist for the cold pre-2010 housing stock.

Rolleston

9+ yrs · GBI · WANZ
  • Retrofit IGU
  • Timber joinery
  • Aluminium joinery

Waikato

1 installer · 1300 HDD

Waikato Glaziers Ltd

Waikato Glaziers

Hamilton and Cambridge full-service glazier — retrofit, new joinery, and emergency replacement.

Hamilton

32+ yrs · GBI · WANZ
  • Retrofit IGU
  • Full-frame
  • New build

Bay of Plenty

2 installers · 1100 HDD

Moana Glazing Bay of Plenty

Moana Glazing

Coastal-zone aluminium specialist — marine-grade powder coatings as standard.

Mt Maunganui

12+ yrs · GBI · WANZ
  • Full-frame
  • Aluminium joinery
  • Thermally broken

Rotorua Window Works

Rotorua Window Works

Geothermal-zone specialist — sulphur-resistant fittings and seal materials.

Rotorua

17+ yrs · GBI · WANZ
  • Retrofit IGU
  • Full-frame
  • Aluminium joinery

Otago

1 installer · 2050 HDD

Dunedin Villa Glazing Ltd

Dunedin Villa Glazing

Heritage-villa retrofit specialist — Dunedin's pre-1900 stock is their daily work.

Dunedin

24+ yrs · GBI · WANZ
  • Retrofit IGU
  • Timber joinery
  • Heritage

Southern Lakes

1 installer · 2200 HDD

Alpine Thermal Glazing Wanaka

Alpine Thermal

Alpine new-build specialist — triple glazing and high-spec argon-low-E IGUs.

Wanaka

8+ yrs · GBI · WANZ
  • New build
  • Full-frame
  • Thermally broken