Replacing tired, draughty or rotten windows is one of the bigger jobs an older Auckland house will ask for, and the best window replacement in Auckland comes from firms that measure, make and fit the joinery themselves. The specialists below cover new aluminium windows and doors, reframing of failed timber and aluminium units, retrofit double glazing and emergency glass work, across villas, bungalows, state houses and commercial buildings. The Window Factory in Penrose and North Shore Glass in Takapuna are among the longest established.
1The Window Factory
The Window Factory is the aluminium joinery showroom and manufacturing centre for Aluminium City Limited, a company first incorporated in 1979. It makes and fits joinery for replacement work as well as new builds, covering residential, architectural, commercial and industrial buildings. Its own installation team works out of fully equipped vans across metropolitan Auckland and beyond.
Services
- Replacement aluminium joinery for existing homes and buildings
- Residential aluminium windows and doors
- Architectural aluminium joinery
- Commercial and industrial aluminium joinery
- Purpose built conservatories
Highlights
- Trading since 1979, originally incorporated as McWatt and Marshall Limited
- Over 45 years of installing aluminium joinery in the Auckland market
- Showroom and manufacturing plant together on one Penrose site
- In-house installers rather than general builders, working from fully equipped vans
- Supplies the APL ranges including FIRST Residential, Metro Series and Thermal Heart thermally broken frames
Location & Contact
Name: The Window Factory
Address: 170 Station Road, Penrose, Auckland 1061
Phone: 09 579 2770
Website: windowfactory.co.nz
2The Window Doctor
The Window Doctor is a Penrose based aluminium joinery specialist that handles everything from a seized window stay through to a complete window replacement. The team has more than 40 years of experience and works throughout Auckland for homeowners, landlords, builders and commercial property owners, including on historic and heritage buildings. It is a useful option when some windows can be repaired and others need replacing outright.
Services
- Complete window replacement, from removing the old units to fitting the new
- Aluminium reframing of existing openings
- Window glass repair and replacement
- Conservatory repairs and roof work
- Emergency glass and window repair, available around the clock
Highlights
- More than 40 years of experience in aluminium joinery
- Emergency callout available 24 hours a day, seven days a week
- Works on historic and heritage properties as well as standard housing stock
- Dedicated service lines for property managers and landlords, including Healthy Homes compliance work
Location & Contact
Name: The Window Doctor
Address: 657 Great South Road, Penrose, Auckland 1061
Phone: 0800 320 656
Website: windowdoctor.kiwi.nz
3North Shore Glass
North Shore Glass has been glazing the greater Auckland area from Takapuna since 1960. Alongside retrofit double glazing it replaces window framing outright, supplying and installing new joinery to match the rest of a house when old timber or aluminium frames are past their use by date. The in-house team takes in qualified builders, joiners and glaziers, so frame and glass work is handled by the same firm.
Services
- Window frame and glass replacement, supplied and installed to match existing joinery
- Retrofit double glazing for timber and aluminium frames
- Aluminium joinery repairs and replacement
- Residential and commercial glass repair
Highlights
- Servicing the greater Auckland area since 1960
- In-house team of qualified builders, joiners and glaziers
- Available 24 hours a day
- Same day service for commercial work
- Displays membership of the Glass Association of New Zealand, the Window Association, Site Safe and Prequal
Location & Contact
Name: North Shore Glass
Address: 85 Barrys Point Road, Takapuna, Auckland 0622
Phone: 09 486 2069
Website: northshoreglass.co.nz
4The Double Glazing Company (AKL) Ltd
The Double Glazing Company runs its Auckland branch from Pakuranga Heights and covers both routes to warmer windows, either retrofitting double glazing into sound existing frames or replacing the windows and doors entirely. As a licensed RetroGLAZE partner it works on both timber and aluminium joinery, and it has real experience with villas and bungalows where leadlight, stained glass and colonial multi pane windows need to be kept. Homeowners unsure which option suits their house can book a free assessment first.
Services
- Full replacement windows and doors
- Timber retrofit double glazing
- Aluminium retrofit double glazing
- Aluminium inserts for existing timber joinery
Highlights
- Licensed RetroGLAZE partner
- More than 700 Auckland projects completed
- Free in-home consultation and window assessment
- Character home work that retains leadlight, stained glass and colonial multi pane joinery
Location & Contact
Name: The Double Glazing Company (AKL) Ltd
Address: 16 Rylock Place, Pakuranga Heights, Auckland 2010
Phone: 09 444 6780
Website: doubleglaze.co.nz/contact-us/our-locations/double-glazing-auckland
5Window Masters
Window Masters is a small Silverdale based glazing and aluminium joinery team that has worked across the northern half of Auckland since 2014. The work runs from swapping tired timber frames for aluminium framing through to installing new windows and doors, replacing glass and sorting out leaks and draughts. It suits homeowners and property managers who want one operator for both the replacement and the maintenance that follows.
Services
- Aluminium window and door installation
- Replacing wooden frames with aluminium framing
- Glass replacement, including double glazing
- Window and door hardware, handles, locks and latches
- Draught, leak and security repairs
Highlights
- Operating since 2014 and 100 percent New Zealand owned and operated
- Team bringing more than 20 years of combined experience in aluminium joinery and glazing
- Covers the Hibiscus Coast, North Shore, West Auckland and central Auckland as far south as Mt Wellington
Location & Contact
Name: Window Masters
Address: Unit 7, 14 Curley Avenue, Silverdale, Auckland 0932
Phone: 021 269 9212
Website: windowmasters.co.nz
Window Replacement in Auckland at a Glance
| Business | Based in | Highlight |
|---|---|---|
| The Window Factory | Penrose | Trading since 1979 |
| The Window Doctor | Penrose | More than 40 years of experience in aluminium joinery |
| North Shore Glass | Takapuna | Servicing the greater Auckland area since 1960 |
| The Double Glazing Company (AKL) Ltd | Pakuranga Heights | Licensed RetroGLAZE partner |
| Window Masters | Silverdale | Operating since 2014 and 100 percent New Zealand owned and operated |
How to Choose the Right Window Replacement Company in Auckland
- Decide first whether you need full replacement or retrofit double glazing. Sound frames can often be reglazed, while rotten timber or flimsy early aluminium usually needs replacing outright, and the better firms will tell you which applies.
- Check who actually does the fitting. A company with its own installation crews controls the timeline and the finish, whereas a supplier that hands the job to a builder does not.
- Ask which joinery system is being quoted and whether thermally broken frames are included, because the frame matters as much as the glass for warmth and condensation.
- Match the firm to your house. Villas, bungalows and leadlight windows need someone who works on character homes, not just modern group housing.
- Confirm the warranty and who honours it, and look for a real Auckland address and landline rather than a call centre number alone.
Frequently Asked Questions About Auckland Window Replacement
Do I need a building consent to replace windows in Auckland?
It depends on the work. Swapping a window for one of the same size in the same opening is often exempt, but altering the opening, changing a specified intended use or affecting the structure usually triggers a consent. The exemptions are set out by the Ministry of Business, Innovation and Employment at building.govt.nz, and Auckland Council can confirm what applies to your property before you commit.
What is the difference between retrofit double glazing and window replacement?
Retrofit double glazing takes the single pane out of your existing frame and puts a sealed double glazed unit in its place, keeping the joinery you already have. Full replacement removes the frame as well and fits new windows, which is the answer when the timber has rotted, the aluminium is failing or you want a different size or layout.
How long does a window replacement take?
Timeframes vary with the size of the house and whether the joinery is made to order, so most firms quote after measuring. Manufacture is usually the longest part of the process, with installation itself measured in days rather than weeks for a typical home.
Can old aluminium windows be double glazed?
Often yes. Early aluminium joinery can frequently be retrofitted with double glazed units, and where the frame is too shallow or too worn, aluminium inserts or full replacement are the alternatives. An assessment on site is the only reliable way to know which of the three suits your windows.
Will new windows meet the current insulation requirements?
New and replacement joinery is expected to meet the thermal performance requirements in clause H1 of the New Zealand Building Code, which is why thermally broken frames and low emissivity glass now appear on most quotes. The requirements and the schedule method used to demonstrate compliance are published at building.govt.nz.
Should I replace all my windows at once?
Not necessarily. Many Auckland homeowners start with the coldest or noisiest rooms, commonly bedrooms and living areas on the southern or road facing side, then work through the rest of the house later. Doing it in stages costs more per window overall but spreads the outlay.
Do window companies handle rotten timber and leaks around the opening?
Some do and some do not, so ask before the quote is finalised. Firms that carry qualified builders and joiners as well as glaziers can repair the surrounding framing and reinstate linings and cladding, while a glass only operator will typically need a builder alongside them.
Is it worth double glazing for noise rather than warmth?
Yes, though the glass specification changes. Noise reduction favours a wider air gap and laminated or differing pane thicknesses, whereas thermal performance favours a narrower gap with low emissivity coatings, so tell the installer which problem you are actually trying to solve.
How We Chose the Best Window Replacement in Auckland
Every business in this guide was found by searching for window replacement in Auckland, then checked against its own website. Names, addresses and phone numbers are taken from the business’s own site rather than a directory feed, so what you see here is what they publish themselves. We also check that each one is actually based in or genuinely serving Auckland, rather than a national operator running a local landing page. A business with no website of its own is not listed, because there is no primary source to verify it against.