East Auckland homes, from the older weatherboard streets of Howick to the newer builds in Flat Bush, are still full of original single glazing that lets heat escape and lets road and school-run noise in. Whether you need a full frame replacement or a retrofit into your existing joinery, choosing an installer who actually works in the area, rather than one that just ranks well online, makes a real difference to the result. We independently researched double glazing installers serving Howick, Pakuranga, Botany, Half Moon Bay, Bucklands Beach, Highland Park and Flat Bush.
This page highlights the Top 5 double glazing installers in East Auckland, based on independent research into reputation, accreditation, service quality and overall reliability.

The top 5 double glazing installers in East Auckland are 1. The Double Glazing Company AKL Ltd, 2. RetroFit Double Glazing (Metro Performance Glass), 3. Haynes Glass Ltd, 4. Elite Glazing & Glass, 5. Zeta Window and Door Ltd. 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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Based at 16 Rylock Place, Pakuranga Heights, this is the only ranked installer physically headquartered inside East Auckland. Independently listed with a 5.0 Google rating and over 700 completed Auckland projects, the company has been trading as The Double Glazing Company AKL Ltd since 2004, offering both retrofit and replacement double glazing.
RetroFit Double Glazing is the retrofit division of Metro Performance Glass, New Zealand's largest glass processor and an NZX-listed company. Its Auckland East branch and showroom are based at East Tāmaki, with every unit factory-sealed under a 10-year manufacturer warranty and over 35 years of specialist retrofit experience.
Founded in Howick in 1993 by Peter Hayne, Haynes Glass now operates from East Tāmaki and holds current WGANZ membership. It carries a 4.8-star Google rating from 81 reviews and offers window glass replacement and double glazing alongside its glass and glazing work.
A family-owned East Tāmaki business led by director Che, with over 12 years in the glass trade. Elite Glazing & Glass holds a 5.0 Google rating from 40+ reviews, with customers specifically praising retrofit UPVC double glazing installs and noticeable improvements in insulation and noise reduction.
Based on Trugood Drive, East Tāmaki, Zeta is a current WGANZ member and an approved fabricator for the Omega aluminium joinery system, manufacturing and installing replacement and retrofit aluminium windows and doors. Its independent review volume is thin, so weigh this alongside the credentials.
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 |
|---|---|
| The Double Glazing Company AKL Ltd | Homeowners who want a locally based Pakuranga installer with a long Auckland track record |
| RetroFit Double Glazing (Metro Performance Glass) | Homeowners who want the backing of New Zealand's largest glass manufacturer |
| Haynes Glass Ltd | Homeowners wanting an established, WGANZ-accredited local glazier with a long East Auckland history |
| Elite Glazing & Glass | Homeowners prioritising strong, high-volume recent customer reviews |
| Zeta Window and Door Ltd | Homeowners wanting an accredited Omega aluminium joinery fabricator, who are happy to ask for direct references given limited public reviews |
Looking for double glazing installers in Howick or Pakuranga? Our recommended East Auckland double glazing installers work right across the area, covering Howick, Pakuranga, Botany Downs, Bucklands Beach, Half Moon Bay, Highland Park, Cockle Bay, Mellons Bay, Sunnyhills, Dannemora and Flat Bush. Wherever you are, these are the double glazing installers East 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 set a minimum window and door R-value of R0.46 for most of New Zealand, including Auckland, up from R0.37 before. Windows are still the weakest thermal point in most East Auckland homes, especially older single-glazed stock around Howick and Pakuranga, so upgrading them makes a real difference to comfort and heating bills. Whatever installer you choose, check they're building to NZS 4223, the standard that governs glass selection and, for anything within 2000mm of floor level, human-impact safety glazing.
You'll generally be choosing between two approaches: full frame replacement, where the entire window and its aluminium or timber joinery is replaced with new double-glazed units, or retrofit (also called secondary glazing), where a double-glazed unit or a magnetic secondary panel is fitted into your existing frame. Retrofit is usually cheaper and less disruptive, and brands like RetroFit Double Glazing (Metro Performance Glass) and Magnetite are established, long-running options in this space, but full replacement can be worth it if your existing joinery is damaged, warped or not thermally broken. One thing to be clear on: unlike insulation and heat pumps, double glazing is not funded under EECA's Warmer Kiwi Homes scheme, so budget for the full cost yourself and get more than one quote.
Cost depends heavily on whether you choose retrofit or full frame replacement, the size and number of windows, and the glazing system. Retrofit into existing frames is generally the cheaper option since the joinery itself isn't replaced, while full replacement of aluminium or timber joinery costs more but can be worth it on older, damaged, or non-thermally-broken frames. Get quotes from at least two or three East Auckland installers before deciding, as prices vary significantly between providers.
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. There is currently no EECA grant for double glazing in New Zealand, so homeowners need to budget for the full installation cost themselves.
Full frame replacement removes your existing window and joinery entirely and installs new double-glazed aluminium or timber windows. Retrofit, sometimes called secondary glazing, keeps your existing frame and either replaces the single pane with a double-glazed unit or adds a secondary glazing panel (such as a Magnetite magnetic system) inside it. Retrofit is typically faster, less disruptive and cheaper, while full replacement suits homes with damaged, warped, or poorly performing existing joinery.
A retrofit double glazing job on an average East Auckland home is often completed within one to a few days, since the existing frames stay in place. Full frame replacement takes longer, as it involves removing old joinery and fitting new windows, and can extend to a week or more depending on the number of windows and any building consent requirements.
Yes, for most older homes. Windows remain the weakest thermal element in a typical New Zealand house, and since the Building Code's H1 changes in May 2023 raised the minimum window R-value to R0.46 in Auckland, the gap between old single glazing and current standards is larger than ever. In an older Howick, Pakuranga or Bucklands Beach home with original aluminium or timber joinery, double glazing (retrofit or full replacement) typically improves warmth, reduces condensation and cuts outside noise noticeably.
Our recommended East Auckland double glazing installers cover Howick, Pakuranga, Botany Downs, Bucklands Beach, Half Moon Bay, Highland Park, Cockle Bay, Mellons Bay, Sunnyhills, Dannemora and Flat Bush, plus the wider East 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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