Hastings homes span everything from early-1900s villas in Mahora to newer builds in Flaxmere and Havelock North, and most were built to a single-glazing standard that no longer meets the New Zealand Building Code. Whether you need full frame replacement or retrofit double glazing into your existing joinery, we've independently verified the installers below against real business records, industry membership and genuine local track record.
This page highlights the Top 5 double glazing installers in Hastings, based on independent research into reputation, accreditation, service quality and overall reliability.

The top 5 double glazing installers in Hastings are 1. Toop Aluminium 2020 Ltd (Fisher® Windows Hastings), 2. Twin City Aluminium Ltd, 3. RetroFit Double Glazing Hawke's Bay (Metro Direct Napier), 4. Venta Limited, 5. Clive Glass Limited. 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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A registered Hastings manufacturer (NZBN 9429047947030, incorporated 2020, physical premises at 1330 Omahu Road) with over 25 years of aluminium joinery experience and confirmed current membership of WGANZ, the national industry body. It holds Altus® Accredited Commercial Fabricator status and operates as a dual GLAZE® Licensed Agent for Hawke's Bay, with a 5-star rating from 9 Google reviews.
A Hastings-registered aluminium joinery company (NZBN 9429033693767, 513 Queen Street West) with over 20 years in the region, confirmed current WGANZ membership and associate membership of Registered Master Builders. Reviewed at 5 stars on Google.
Operates as the Metro Direct Napier branch of Metro Performance Glass, an NZX-listed glass manufacturer and confirmed WGANZ member (wganz.org.nz/members/metro-performance-glass-ltd). Units are locally processed with a 10-year manufacturer warranty, and the branch regularly services Hastings alongside Napier as part of the wider twin-city area.
A family-owned aluminium window and door manufacturer registered in Hastings since the 1940s (NZBN 9429037288648, 17 Tumu Way, Longlands), and an approved fabricator of the Omega® exterior aluminium system. Offers double glazing on residential and architectural projects, with a named, verifiable leadership team.
A registered Hastings glazing company (NZBN 9429049192445, 104 Stoneycroft Street) serving Hawke's Bay since 1988, specialising in retrofit double glazing alongside general glazing. It is an approved repairer for multiple major insurers (IAG, AMI, Vero, State) and has been family-owned since the 2000s.
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 |
|---|---|
| Toop Aluminium 2020 Ltd (Fisher® Windows Hastings) | Full frame aluminium double glazing replacements |
| Twin City Aluminium Ltd | Full frame window and door joinery replacements |
| RetroFit Double Glazing Hawke's Bay (Metro Direct Napier) | Retrofit/secondary double glazing into existing frames |
| Venta Limited | Custom and architectural double glazing projects |
| Clive Glass Limited | Retrofit double glazing and general glazing needs |
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 New Zealand's climate zones, up from R0.37 previously. Even at this higher standard, windows remain by far the weakest thermal element in a typical Hastings home compared to insulated walls and roofs, which is why double glazing makes such a noticeable difference to comfort and running costs, particularly in older Hastings villas and bungalows that predate any glazing standard at all. Installed glazing also needs to meet NZS 4223, the national glazing standard - Part 1 covers glass selection and design, while Part 3 sets safety requirements for glazing within 2000mm of floor level, which matters for doors, low windows and stairwells.
There are two genuinely different ways to double glaze a Hastings home. Full frame replacement swaps out the entire window or door unit for new double-glazed aluminium or timber joinery, which suits homes being renovated or where frames are worn out. Retrofit or secondary glazing, by contrast, fits a new sealed glazing unit into your existing frames, which is typically less disruptive and less expensive, and is offered under established New Zealand systems such as RetroFit Double Glazing (a Metro Performance Glass subsidiary) and Magnetite. Worth knowing before you get quotes: unlike insulation and heat pumps, double glazing and window replacement are not funded under EECA's Warmer Kiwi Homes scheme, so there is no government grant to offset the cost - get quotes from more than one installer and ask directly whether they are a current WGANZ member, since membership signals ongoing engagement with industry standards and training.
Cost depends heavily on whether you choose retrofit or full frame replacement, the number and size of windows, and the frame material. Retrofit double glazing into existing aluminium or timber frames is generally the cheaper option since it avoids removing and replacing the whole joinery, while full frame replacement costs more but suits homes already undergoing renovation. Get itemised quotes from at least two or three Hastings installers to compare like-for-like.
No. Unlike ceiling and underfloor insulation or heat pumps, which can be funded through EECA's Warmer Kiwi Homes scheme for eligible households, double glazing and window replacement are explicitly excluded from that programme. There is currently no dedicated national grant for double glazing in New Zealand, so homeowners fund it privately.
Full frame replacement removes your existing window or door entirely and installs new double-glazed aluminium or timber joinery, which is more disruptive and costly but resets the whole unit. Retrofit (or secondary) double glazing fits a new sealed double-glazed unit into your current frames without replacing them, which is faster, less invasive and usually cheaper, and is the approach used by established New Zealand systems such as RetroFit Double Glazing and Magnetite.
A retrofit double glazing job on an average Hastings home is often completed within one to a few days, since the existing frames stay in place. Full frame replacement takes longer, as it may involve removing old joinery, making good the surrounding wall, and reinstalling new frames, so timeframes vary more and should be confirmed with your installer at quote stage.
Often yes. Many older Hastings villas and bungalows were built well before any glazing standard existed, so their single-glazed windows are typically the single weakest point for heat loss and draughts in the home. Retrofit double glazing in particular lets you improve comfort and reduce condensation without the cost and disruption of replacing original joinery, which matters if the home has character features worth preserving.
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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