Timber Retrofit
At Double Glazing Hamilton, we help upgrade homes with timber retrofit solutions that keep the charm of existing timber windows while giving them modern day functionality. Our team works carefully with existing timber joinery and adds new timber beads to fit replacement double glazed windows without changing the look of your home. Whether you have traditional colonial style windows, bungalows, or modern era homes, we make sure your windows and doors stay beautiful and strong. There are many possibilities for customizing timber retrofit solutions to suit different rooms and home styles.
Our retrofit double glazing process involves double glazing being installed into existing timber frames, allowing windows to be retrofitted in specific rooms for targeted comfort. Retrofitting timber windows provides wider benefits, such as improved insulation, energy efficiency, and preserving your home’s character. We use genuine double glazing glass and high performing windows to make your home warm in winter and cool in summer, and our retrofitted solutions provide comfort throughout your living spaces. At Double Glazing Hamilton, we make your old timber frames look and work like new again.

- Industry
- Accreditations*






- Industry
- Accreditations*








Bringing New Life to Existing Timber Joinery
At Double Glazing Hamilton, we understand how important it is to keep the look of your home while upgrading to new double glazing. Our team is skilled at retrofitting existing timber joinery by installing new double glazing into the original frames, making sure it stays strong and matches new zealand house styles. Whether you’re dealing with existing frames or wooden joinery, we carefully add replacement windows that improve comfort and help reduce heat loss.
We also fix and upgrade existing timber framed windows with thermally enhanced replacement joinery so your windows are retrofitted for better insulation and slow maintenance benefits. From large aluminium joinery windows to doors, we offer a broad range of solutions that mix beauty with function. Trust Double Glazing Hamilton to make your windows look classic and work better.
Enjoy the Lasting Benefits of Timber Retrofit

Low Maintenance and Long-Lasting
With Double Glazing Hamilton, you’ll enjoy low maintenance benefits that last for years. Our work on existing timber and replacement joinery means you won’t have to worry about repairs any time soon.

Perfect for Many House Styles
Double Glazing Hamilton works with both traditional colonial style windows, bungalows, and modern era homes. No matter your home’s look, our retrofit process fits right in while giving you high performing windows. Timber retrofit solutions can also be tailored for specific rooms, such as bedrooms or living rooms, to maximize comfort and efficiency.

Warmer Homes with Less Heat Loss
At Double Glazing Hamilton, our timber retrofit double glazing helps provide comfort by improving indoor warmth and reducing drafts, effectively stopping heat loss and making homes feel warmer in winter and cooler in summer. This means better comfort all year round with less need for heaters or fans.

Keeps the Charm of Your Timber Windows
Double Glazing Hamilton makes sure your existing timber windows stay looking beautiful. We match timber beads and frames so your home keeps its special style while getting all the benefits of genuine double glazing.
Discover the Right Fit for Your Timber Retrofit Needs
At Double Glazing Hamilton, we make it easy to upgrade your existing timber framed windows without losing their classic look. Our team takes care when working with deteriorated timber joinery, using the right tools and methods to match the beauty of your home while improving performance.
With years of experience, Double Glazing Hamilton knows how to handle all kinds of existing windows, from aluminium windows to timber windows. We help homeowners all over, including places like Te Awamutu, to enjoy the strength of replacement double glazed windows built for lasting comfort.
We also answer your double glazing questions so you understand how our retrofit double glazing works. From start to finish, we guide you through every step and make sure your home gets the best upgrade possible.
Advantages of Our Timber Retrofit Service
- Fits perfectly with existing timber joinery
- Adds comfort with high performing windows
- Matches new zealand house styles
- Helps reduce heat loss year-round
- Keeps the charm of your wooden joinery
Our Proven Retrofit Process for Long-Lasting Results
At Double Glazing Hamilton, our retrofit process involves retrofitting your existing timber windows by having new double glazing installed into the original frames, preserving your home’s original charm. We carefully improve your wooden joinery so you get the benefits of new double glazing installed without changing the style you love. Trust Double Glazing Hamilton to handle your home with care from start to finish.
We look at your existing timber to see if there’s any deteriorated timber joinery that needs fixing. This makes sure the base is strong enough for the upgrade.
We install replacement double glazed windows by having them installed into your existing frames using new timber beads to hold them in place. This step gives you better insulation and keeps the outside look the same.
We check every detail, clean up, and make sure your windows and doors open and close smoothly. You’ll get high performing windows with a perfect finish.
Why Choose us
Why Choose Us for Your Timber Retrofit Solution
Local Experts Who Understand New Zealand House Styles
We serve Hamilton, Cambridge, and surrounding townships, bringing local expertise to all kinds of new zealand house styles, from old villas to modern era homes. Our team makes sure your windows look the same but work even better.
Trusted Process with Proven Results
Our retrofit process has been tried and tested in many homes. We use the best tools and materials to make sure your timber retrofit lasts a long time.
Save Energy and Stay Comfortable
With our high performing windows, your home keeps warm in winter and cool in summer. Our genuine double glazing helps stop heat loss so you save on power bills too.
Custom Fit for Your Existing Windows
We work with your existing timber windows, timber frames, and timber beads to make everything fit just right—without changing how your home looks. Retrofit solutions can also be customized for each room, such as bedrooms or living rooms, to maximize comfort and efficiency.
Great for Both Timber and Aluminium
Whether you have aluminium windows or wooden joinery, we can give you replacement joinery that looks great and lasts long.
Full Service from Start to Finish
We guide you through all your double glazing questions and handle everything from first check to final clean-up. You can relax knowing Double Glazing Hamilton has everything covered.
Why Choose us
Why Choose Us for Your Timber Retrofit Solution
Local Experts Who Understand New Zealand House Styles
We serve Hamilton, Cambridge, and surrounding townships, bringing local expertise to all kinds of new zealand house styles, from old villas to modern era homes. Our team makes sure your windows look the same but work even better.
Trusted Process with Proven Results
Our retrofit process has been tried and tested in many homes. We use the best tools and materials to make sure your timber retrofit lasts a long time.
Save Energy and Stay Comfortable
With our high performing windows, your home keeps warm in winter and cool in summer. Our genuine double glazing helps stop heat loss so you save on power bills too.
Custom Fit for Your Existing Windows
We work with your existing timber windows, timber frames, and timber beads to make everything fit just right—without changing how your home looks. Retrofit solutions can also be customized for each room, such as bedrooms or living rooms, to maximize comfort and efficiency.
Great for Both Timber and Aluminium
Whether you have aluminium windows or wooden joinery, we can give you replacement joinery that looks great and lasts long.
Full Service from Start to Finish
We guide you through all your double glazing questions and handle everything from first check to final clean-up. You can relax knowing Double Glazing Hamilton has everything covered.
Frequently Asked Questions
At Double Glazing Hamilton, we know homeowners have many double glazing questions, especially when it comes to upgrading existing timber windows. To help you understand our timber retrofit service better, we’ve listed the most common questions we hear—along with clear, simple answers.
Timber retrofit means upgrading your existing timber joinery by retrofitting new double glazing into the original frames, improving insulation and energy efficiency without changing the look of your windows.
Yes! We match timber beads and use care so your wooden joinery keeps its original look, as the new double glazing is installed into the existing frames.
Yes, we can retrofit both existing aluminium joinery and timber frames, including large aluminium joinery windows.
It depends on the size of your home, but Double Glazing Hamilton usually finishes within a few days.
If your existing frames are in good shape, retrofit double glazing is faster, cheaper, and keeps your home’s style, while also offering wider benefits such as improved insulation, thermal performance, and preservation of your home’s character.
We repair or replace deteriorated timber joinery so it’s strong enough to hold replacement double glazed windows.
Yes! Our high performing windows help stop heat loss, so you stay warmer in winter and cooler in summer.
We work with all kinds, from traditional colonial style windows to modern era homes and even older zealand house styles. There are many possibilities for customizing solutions to suit different home styles and any room in your house, such as kitchens, bedrooms, or living rooms.
In most cases, no. Our work on replacement joinery is neat, and we keep your finish clean.
Yes, Double Glazing Hamilton retrofits both windows and doors to give your whole home better comfort and style.
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Trusted Timber Retrofit Experts in Double Glazing Hamilton
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