Queenstown's alpine climate puts more strain on a home's windows than almost anywhere else in New Zealand, and single glazing is often the weakest link in an otherwise warm house. We've researched and verified the double glazing installers genuinely operating in and around Queenstown, covering both full frame replacement and retrofit secondary glazing, so you can hire with confidence.
This page highlights the Top 5 double glazing installers in Queenstown, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 5 double glazing installers in Queenstown are 1. Lakeland Glass Ltd, 2. RetroFit Double Glazing (Cromwell branch), 3. Remarkable Glass Ltd, 4. Aspiring Glass, 5. Double Glaze It Otago Ltd. Below we explain why each made the list, compare them at a glance, and share how to choose.
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Lakeland Glass is a Queenstown-owned and operated glazier based in Frankton, run by qualified glazier Richard Campbell. It is a verified current member of WGANZ (Window & Glass Association NZ) and carries a genuine 5.0-star rating across 11 independent Google reviews.
RetroFit Double Glazing is a roughly 40-year-old specialist retrofit brand owned by Metro Performance Glass (part of the Viridian Glass group). Its Cromwell branch explicitly services Queenstown, Wanaka, Central Otago and Alexandra, and installs factory-sealed units backed by a 10-year manufacturer warranty.
Remarkable Glass is a registered New Zealand company (NZBN 9429035587453) with a genuine premises in Frankton, Queenstown. Its team has a combined 125+ years of experience in the glass trade and offers both retrofit double glazing and general glazing work across the Wakatipu Basin.
Aspiring Glass is a Wanaka-based, locally owned glazier established in 2013 and a verified current WGANZ member, with a genuine 5.0-star rating across 13 independent Google reviews. It services the wider Queenstown Lakes and Central Otago district, including Queenstown.
Double Glaze It Otago is a registered New Zealand company (NZBN 9429041712726, registered 2015) based in Cromwell, run by glazier Kris King, who has 25+ years in the trade. It services Queenstown, Wanaka and Central Otago for retrofit double glazing, general glazing and repairs.
A quick comparison of our Top 5 picks. Select up to 3 businesses above to compare their strengths side by side.
| Double Glazing Installer | Best for |
|---|---|
| Lakeland Glass Ltd | Homeowners wanting a locally based, WGANZ-affiliated glazier for retrofit double glazing |
| RetroFit Double Glazing (Cromwell branch) | Homeowners who want the backing and warranty of a large, established glass manufacturer |
| Remarkable Glass Ltd | Homeowners who also need wider glazing work (splashbacks, balustrades, shower screens) alongside double glazing |
| Aspiring Glass | Homeowners near Wanaka or the wider Queenstown Lakes district wanting a WGANZ-verified glazier |
| Double Glaze It Otago Ltd | Homeowners wanting a small, owner-operated glazier for retrofit double glazing or general repairs |
Independent, editorial, and reviewed regularly.
TopChoice rankings are editorially curated by our New Zealand team and reviewed periodically. We don't host our own reviews. Our shortlists draw on public reputation signals from Google and other platforms, alongside our own research into each double glazing installer. We weigh up a combination of:
We don't accept payment in exchange for a place in the Top 5. Featured placements are separate and always clearly labelled. Rankings may change over time as businesses evolve.
Windows remain the weakest thermal element in most New Zealand homes, and it matters more in Queenstown than almost anywhere else. Since May 2023, the Building Code (Clause H1) has required a minimum window/door R-value of R0.46 in most of the country and R0.50 in the coldest climate zones, up from R0.37 previously. Older Queenstown homes built before this change were typically fitted with single glazing or early-generation double glazing that falls well short of today's standard, which is exactly why so many local installers specialise in retrofit and secondary glazing rather than only new-build work. Any installer working on glazed units near floor level should also be applying NZS 4223 (Part 1 covers glass selection and design, Part 3 covers human-impact safety within 2000mm of the floor) - it's worth asking directly whether they work to this standard.
It's also worth being clear on what you're paying for. Unlike insulation or heat pumps, which can be funded through EECA's Warmer Kiwi Homes programme, there is currently no government grant that covers double glazing or window glazing work in New Zealand - you're paying the full cost yourself, so getting multiple quotes and checking credentials matters more, not less. Look for genuine WGANZ (Window & Glass Association New Zealand) membership, a real local premises rather than just a website, and clarity on whether they're proposing full frame replacement (new double-glazed aluminium or timber joinery) or retrofit/secondary glazing (a second pane or magnetic panel fitted into your existing frames) - established retrofit systems like RetroFit Double Glazing and Magnetite are both legitimate, proven options in the New Zealand market, and the right choice depends on your existing joinery, budget and how long you plan to stay in the home.
Cost depends heavily on approach: retrofit/secondary glazing (a second pane or magnetic panel fitted into your existing frames) is typically the more affordable route, while full frame replacement with new double-glazed aluminium or timber joinery costs significantly more but replaces the whole window system. Get quotes from at least two or three local installers, as Queenstown's alpine climate and remote logistics can affect pricing compared to lower-South Island towns.
No. Unlike insulation and heat pumps, which can be funded through EECA's Warmer Kiwi Homes programme, double glazing and window glazing work is explicitly excluded from that scheme. You should budget for the full cost yourself, which is one more reason to compare quotes and check credentials like WGANZ membership before committing.
Full frame replacement removes your existing window frames and installs new double-glazed aluminium or timber joinery from scratch. Retrofit (or secondary) double glazing instead fits a second pane of glass, or a magnetic secondary glazing panel, into or alongside your existing frames without replacing them. Retrofit is usually faster and less disruptive; full frame replacement is more thorough but a bigger job and cost.
Retrofit/secondary glazing on an average home can often be completed within a day or two once units are manufactured, as no structural joinery work is involved. Full frame replacement takes longer, as it typically involves removing existing frames, fitting new joinery, and finishing internally and externally - installers can advise on realistic timeframes once they've assessed your home.
Generally yes. Windows are the weakest thermal element in most New Zealand homes, and current Building Code minimums (R0.46 to R0.50 depending on climate zone, in place since May 2023) are well above what older single- or early double-glazed Queenstown homes were built to. Retrofit double glazing in particular lets you improve an older home's warmth and reduce condensation and noise without the cost and disruption of full frame replacement.
Editorial disclosure: TopChoice is an independent editorial platform. Some pages may include clearly labelled featured placements for additional visibility. Featured placements do not influence rankings within our Top 5 lists.
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