South Auckland's older weatherboard and brick-and-tile stock in suburbs like Manurewa, Papatoetoe and Otara loses a lot of heat through single-glazed windows, and the drive south along the East Tamaki and Papakura glass corridor means there's no shortage of installers claiming to cover the area. We checked which ones are actually real, locally operating businesses rather than lead-sellers or SEO shells.
This page highlights the Top 5 double glazing installers in South Auckland, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 5 double glazing installers in South Auckland are 1. RetroFit Double Glazing - Auckland South, 2. Elite Glazing & Glass, 3. Hi Class Glass, 4. Cedarlite Industries, 5. Papakura Glass. Below we explain why each made the list, compare them at a glance, and share how to choose.
This paid placement sits above the editorial Top 5 and is clearly labelled. It does not influence the rankings below.
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RetroFit is a subsidiary of Metro Performance Glass and New Zealand's largest dedicated retrofit double glazing specialist, with nearly 40 years in the industry. Its Auckland South branch and showroom operates from 5 Lady Fisher Place, East Tamaki, putting it physically inside the South Auckland service area rather than just claiming to cover it.
A family-owned glazing business based at 83 Kerwyn Ave, East Tamaki, registered as Elite Glazing and Glass Limited (NZBN 9429052058561). It holds a 5.0-star Google rating from 40+ reviews, with customers specifically citing fast communication and tidy double glazing and retrofit installations.
Hi Class Glass is a confirmed member of WGANZ (Window & Glass Association New Zealand), listed on the association's own member directory with a 5-star rating from Google reviews. Its double glazing retrofit page explicitly names Papakura, Karaka, Takanini and Drury as part of its South Auckland service run, alongside 25+ years in the trade.
A long-running timber joinery specialist based at 4 Mahunga Drive, Mangere Bridge, genuinely inside South Auckland. Cedarlite is a licensed Thermawood installer for the Auckland/Coromandel region and holds a 98.6% approval rating from 17 authenticated NoCowboys reviews, with specific praise for its wooden-window double glazing retrofits.
A long-standing South Auckland glazier trading since 1980, based at 164 Great South Road, Manurewa. It's one of the few installers whose physical premises sit inside the exact suburbs this page covers, and it lists double glazed window supply and installation among its residential glazing services.
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 |
|---|---|
| RetroFit Double Glazing - Auckland South | Homeowners wanting a large, established retrofit specialist with manufacturer-backed warranties |
| Elite Glazing & Glass | Homeowners wanting a smaller, hands-on local operator with a strong review record |
| Hi Class Glass | Homeowners who want confirmed industry association membership before committing |
| Cedarlite Industries | Older character or villa homes needing timber-frame retrofit double glazing |
| Papakura Glass | Budget-conscious homeowners wanting a long-established, genuinely local South Auckland glazier |
Looking for double glazing installers in Manukau or Manurewa? Our recommended South Auckland double glazing installers work right across the area, covering Manukau, Manurewa, Papakura, Papatoetoe, Takanini, Otahuhu, Mangere, Otara, Wiri, Clendon and Weymouth. Wherever you are, these are the double glazing installers South Auckland locals rate.
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.
Since May 2023, the Building Code's Clause H1 has required a minimum window and door R-value of R0.46 across most of the country, up from R0.37 previously, and windows remain the weakest thermal element in most South Auckland homes. NZS 4223 is the relevant glazing standard: Part 1 covers glass selection and design, while Part 3 sets human-impact safety requirements for any glazing within 2000mm of floor level, which matters for older Papatoetoe and Otara villas with low sills. Ask any installer you're considering whether they're a current WGANZ (Window & Glass Association New Zealand) member, and check that membership independently on wganz.org.nz rather than taking their word for it.
There are two genuinely different approaches. Full frame replacement takes out the existing aluminium or timber joinery and puts in new double-glazed units, which is more disruptive and expensive but resets the whole window's performance. Retrofit or secondary glazing, offered by systems like RetroFit Double Glazing and Magnetite, fits a second pane or unit into or alongside the existing frame, which is cheaper and faster but depends on the condition of what's already there. One thing to be clear on: unlike insulation and heat pumps, which are funded through EECA's Warmer Kiwi Homes scheme, double glazing and window replacement are not covered by that grant, so budget for the full cost yourself and get at least two or three quotes before deciding.
Costs vary a lot depending on whether you're doing full frame replacement or retrofit, how many windows, and frame material. Retrofit double glazing tends to be cheaper per window than full frame replacement since the existing joinery stays in place. Get quotes from at least two or three installers on this list, as pricing depends heavily on your specific home.
No. Unlike insulation and heat pumps, which are funded through EECA's Warmer Kiwi Homes scheme, double glazing and window replacement are explicitly excluded from that programme. There's currently no equivalent national grant for glazing work, so the full cost falls on the homeowner.
Full frame replacement removes your existing window frames entirely and installs new double-glazed aluminium or timber joinery. Retrofit, or secondary glazing, fits a second glass pane or unit into or over your existing frame instead, which is generally faster and less expensive but relies on your current frames being in reasonable condition.
Retrofit double glazing on an average home is typically completed in one to a few days depending on the number of windows. Full frame replacement takes longer, as it involves removing old joinery, fitting new frames, and finishing work around each opening. Ask your installer for a specific timeframe based on your job.
Windows are usually the weakest thermal point in older homes, and the Building Code's H1 energy efficiency clause now requires new and replacement windows to meet a minimum R0.46 rating in most of the country. For older weatherboard or brick-and-tile homes in suburbs like Manurewa, Papatoetoe or Otara, double glazing can meaningfully cut draughts, condensation and noise, though the exact payback depends on your home's construction and current window condition.
Our recommended South Auckland double glazing installers cover Manukau, Manurewa, Papakura, Papatoetoe, Takanini, Otahuhu, Mangere, Otara, Wiri, Clendon and Weymouth, plus the wider South Auckland area. Many also serve neighbouring suburbs, so it is always worth confirming your exact location when you enquire.
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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