Why choose us

RetroFit Double Glazing is available nationwide, we are your local double glazing experts. We can retrofit existing aluminium and timber windows to thermally reduce heat loss from your home. In addition to reducing heat loss, changing from single glazing to double glazed windows also offers the opportunity to reduce noise and or add solar control to your home.

All our double glazed units are factory sealed and manufactured, with supporting warranties from Metro Performance Glass. RetroFit Double Glazing is a subsidiary of Metro Glass/ Metro Direct and are the largest retrofit double glazing company in New Zealand with over 30 years of industry experience.

See for yourself what our customers have to say about us and if you are interested contact us for a no obligation free quote, where we supply you the options to suite your home, from standard double glazing through to Low E, sound reduction and or solar control. 

We’ve been helping Kiwi homeowners upgrade their existing single glazed windows to new double glazing, let us help you make your home healthier, warmer, drier and comfier all year around by tailoring a solution that suits your home.

Quality Assurance

RetroFit double glazed units are manufactured to the highest international standards by Metro Performance Glass on state-of-the-art production lines.

Purchasing retrofit double glazing? 

Click here to view some of our options alternatively click here to see some of the promotions or specials we are currently running

..it is so warm and quiet, with no condensation
Brian, Mt Maunganui
Love, love love the difference in warmth and acoustics
Paula, Bay of Plenty
There's a lot of interest in Highgate Apartments in double-glazing (we've got other apartments coming to look at ours) and we will be pleased to recommend your company.
Peter, Auckland
Dealing with you and your team over fixing the window has been seamless, easy and stress free...
Ian & Kate, Auckland
It was very pleasant experience working with Retrofit, the sales representative was very informative and supportive throughout the process...
Mima, Auckland
Then there was a miracle!
Melanie and Len, Christchurch
...from the initial meeting with staff to the final contact as the work was completed this company has been brilliant to deal with.
Sandra, Tauranga
Never thought that I would get so excited over replacement windows but we are totally stoked with the work your guys have done.
Andy, Cromwell
Retrofit Double Glazing Reviews

Our clients talk about Retrofit Double Glazing

Why choose Retrofit Double Glazing? Our clients talk about their choice of Retrofit and their experience with the installation.

We would like very much to acknowledge your mighty service communication and workmanship right down the line...
Beverley & Keith, Tauranga
I am happy to recommend your company to anyone.
Jocelyn, Arrowtown
Thank you for the outstanding service which has been so much appreciated
Gill, Christchurch
The whole team was very helpful and pleasant to work with
Bill & Heather, Hamilton.
The tradesmen were excellent; they were quick, tidy and friendly.
Anne, Whangarei
Our timber windows look great - the colonial character and integrity has not changed..

My timber windows look great

The difference has been amazing, so much warmer, but the biggest impact is that my new curtains will not go moldy like the old ones did!
Ruth, Whangarei
...The rooms feel drier, cleaner and much warmer. We would definitely recommend getting a RetroFit done.
The Turner Family, Whangarei
I'm sure I'm spending less on heating. I used to feel the cold sitting by the ranch slider, now it is nice and warm.
John, Whangarei
Retrofit installation was quicker than I thought

Retrofit Installation was Quicker than I thought

...I couldn't have asked for better, they coped with the unexpected 'hiccups' without fuss or drama and have left me a very happy customer.
Ngaio, Dunedin
Aluminium Retrofit double glazing looks great

My Aluminium house looks great

Having RetroFit double glazing fitted throughout our home with RetroFit has been a straight forward and professional process from start to finish...
Mary, Dunedin
Retrofit Double Glazing Cost

The cost was less than we expected

...instantly we noticed our entire open plan main lounge, dining and kitchen area maintains an even temperature...
The finished product is better than we expected and has made such a difference to our comfort levels...
Quick installation aluminium retrofit double glazing

Our RetroFit Installation was quick and tidy

We are just so pleased with the double glazing...
Barbara, Mt Maunganui
...My only regret is that I didn't do it sooner.
Nothing was too much trouble, your team ensured we were completely satisfied!