Finding the best window replacement in Dunedin helps homeowners achieve better insulation, reduced condensation and improved security in the city’s cool, coastal climate. Specialists provide options from retrofit double glazing to modern uPVC and timber solutions that suit both contemporary and heritage properties. Local experts such as Dunedin Glass and Southern Double Glazing deliver tailored services for residential and light commercial projects.
1Dunedin Glass
Dunedin Glass is a locally owned glazing company providing expert window replacement, glass repair and custom solutions across Dunedin and the Otago region. They focus on custom-cut glass, double glazing retrofits and timber sash replacements to improve energy efficiency and weatherproofing while suiting traditional architecture. The team of experienced glaziers works on homes and businesses needing reliable, precise installations.
Services
- Broken window replacements including flat glass, double glazing and safety glass
- Retrofit double glazing
- Timber window sash replacement
- Pet door installations in glass or frames
- Splashbacks and frameless shower screens
Highlights
- Custom-made glass cut to precise measurements
- Over 38 years combined glazier experience
- Specialised timber sash replacements for heritage homes
- Local Dunedin operation with fast response for repairs
- Window frame repairs and maintenance
Location & Contact
Name: Dunedin Glass
Address: 8 David Street, Caversham, Dunedin 9012
Phone: 03 455 3030
Website: dunedinglass.co.nz
2Southern Double Glazing
Southern Double Glazing is a Dunedin specialist established in 2012 by local glaziers, focusing on double glazing retrofits and window upgrades for improved energy efficiency. They retrofit double-glazed units into existing timber and aluminium frames to reduce condensation and noise while maintaining home aesthetics. Additional services include window repairs, installations, splashbacks and mirrors for residential clients.
Services
- Double glazing retrofits into existing timber and aluminium frames
- Window repairs and new installations
- Splashbacks
- Mirrors
- Standard window services and upgrades
Highlights
- Established in 2012 by experienced local glaziers
- Expertise in retrofitting double glazing to wooden and aluminium joinery
- Focus on energy efficiency, noise reduction and condensation control
- Local Dunedin base at Kaikorai Valley Road
- Free measure and quote service
Location & Contact
Name: Southern Double Glazing
Address: 264 Kaikorai Valley Road, Dunedin 9011
Phone: 03 488 3635
Website: southerndoubleglazing.co.nz
3The Window Company
The Window Company supplies and installs premium uPVC, timber and aluminium windows and doors with double or triple glazing options, serving Dunedin and the South Island. They offer customizable designs including tilt-and-turn and casement styles along with full installation or supply-only services. Solutions emphasise thermal performance, security and durability for New Zealand conditions.
Services
- uPVC windows and doors
- Aluminium windows and doors
- Timber windows and doors
- Double and triple glazing installations
- Custom designs and full replacement projects
Highlights
- uPVC reduces heat loss by 28% compared with aluminium
- Expected service life over 40 years for uPVC profiles
- German craftsmanship with modern technology
- Member of Licensed Building Practitioner
- Services Dunedin and wider South Island locations
Location & Contact
Name: The Window Company
Address: 72 Ronaldsay Road, Palmerston, Otago
Phone: 022 070 3821
Website: thewindowcompany.co.nz
4Thermawood Otago
Thermawood Otago specialises in retrofit double glazing for timber and aluminium windows using their advanced system to boost energy efficiency while preserving existing frames and heritage character. With over 30 years of experience in glass and timber joinery, they also handle glass repairs, frameless showers, splashbacks and balustrades for residential and commercial clients across Otago and Southland.
Services
- Retrofit double glazing for timber and aluminium frames
- Glass repair and window repair
- Frameless glass showers and screens
- Custom mirrors and kitchen splashbacks
- Glass balustrades and architectural glazing
Highlights
- Over 30 years experience in glass and timber joinery
- Thermawood Retrofit Double Glazing System for longevity and rot prevention
- Member of Window & Glass Association of New Zealand
- Local Dunedin operation serving Otago and Southland
- Expertise with heritage property upgrades
Location & Contact
Name: Thermawood Otago
Address: 71 Maclaggan Street, Dunedin, Otago
Phone: 03 488 4000
Website: thermawoodotago.co.nz
5City Glass
City Glass & Glazing is a Dunedin company founded in 2012 offering personalised window repair, replacement and double glazing services with a small team of 50 years combined experience. As members of Master Glaziers, they provide custom glass cutting, pet door installations and energy-efficient upgrades for homes and light commercial properties across Dunedin and Otago.
Services
- Window repair and replacement for single and double glazed units
- Double glazing retrofits
- Glass repairs including windows, doors, mirrors and splashbacks
- Pet door supply and installation
- Custom glass cutting and fitting
Highlights
- Founded in 2012 with 50 years combined team experience
- Member of Master Glaziers
- Two-man team providing personalised service
- Urgent same-day service for broken windows
- Services Dunedin and Otago-wide with quick turnaround
Location & Contact
Name: City Glass
Address: 69 Ward Street, Dunedin 9016
Phone: 0800 142 868
Website: glasscity.co.nz
Window Replacement in Dunedin at a Glance
| Business | Highlight |
|---|---|
| Dunedin Glass | Custom-made glass cut to precise measurements |
| Southern Double Glazing | Established in 2012 by experienced local glaziers |
| The Window Company | uPVC reduces heat loss by 28% compared with aluminium |
| Thermawood Otago | Over 30 years experience in glass and timber joinery |
| City Glass | Founded in 2012 with 50 years combined team experience |
How to Choose the Right Window Replacement in Dunedin
- Look for companies experienced with Dunedin’s cool climate and heritage properties when selecting materials such as timber sash or uPVC frames.
- Decide between retrofit double glazing for existing frames or full window replacement based on your property’s condition and budget.
- Check for professional memberships including Master Glaziers or the Window & Glass Association of New Zealand.
- Review energy efficiency features, warranties and after-installation support offered by each provider.
- Obtain detailed quotes covering materials, labour, cleanup and any required council compliance.
Frequently Asked Questions About Dunedin Window Replacement
What type of windows suit Dunedin’s climate best?
Double-glazed windows with uPVC or well-sealed timber frames offer strong insulation against cold winters and help minimise condensation common in the region.
Can existing windows be retrofitted with double glazing?
Yes, several Dunedin specialists retrofit double-glazed units into original timber or aluminium frames, preserving architectural character while improving thermal performance and reducing noise.
How do I verify a window installer’s qualifications?
Check membership with the Window & Glass Association of New Zealand or Licensed Building Practitioner status for installation work. Visit the WGANZ member directory or the official LBP register for confirmation.
Are building consents needed for window replacement in Dunedin?
Like-for-like replacements often do not require consents, but changes to appearance or work on heritage buildings should be checked with the local council. Consult the Dunedin City Council website for current requirements.
Which suburbs do these window replacement companies serve?
Providers operate across Dunedin including Caversham, Kaikorai Valley and other suburbs, with some extending service throughout Otago and Southland.
How long does a typical window replacement project take?
Standard jobs often complete in one to three days depending on the number of windows and complexity, while larger or heritage projects may require additional time for custom work.
What should I ask when getting quotes for window replacement?
Request details on glass types, frame materials, energy ratings, warranties, installation process and any additional costs for removal or cleanup to compare options accurately.
How We Chose the Best Window Replacement in Dunedin
Every business in this guide was found by searching for window replacement in Dunedin, 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 Dunedin, 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.