
Double Glazing & Retrofit Double Glazing
Create a Warmer, Healthier and More Comfortable Home
If your home still has single-glazed windows, you could be losing a significant amount of heat through the glass. Modern double glazing is one of the most effective ways to improve your home’s comfort, energy efficiency and overall value.
Double glazing consists of two panes of glass separated by an insulating air gap or Argon gas-filled cavity. This barrier helps reduce heat transfer, keeping your home warmer in winter and cooler in summer while reducing the strain on your heating and cooling systems.
Whether you’re building new or upgrading an existing home, double glazing is an investment you’ll notice every day.
Benefits of Double Glazing
✔ Improved thermal insulation
✔ Reduced heat loss and lower energy costs
✔ Less condensation on windows
✔ Increased comfort all year round
✔ Reduced outside noise
✔ Improved home value and energy efficiency

What is Retrofit Double Glazing?
Retrofit double glazing allows you to enjoy the benefits of double glazing without replacing your existing window frames.
Rather than removing your entire window joinery, we carefully replace your existing single-glazed glass with high-performance double-glazed units that are specifically designed to fit within your current aluminium or timber frames. This provides a more cost-effective solution for many homeowners while still delivering significant improvements in comfort and performance.
Our experienced team will assess your existing windows and recommend the best solution for your home.
Why Choose Retrofit Double Glazing?
Warmer in Winter, Cooler in Summer
Enjoy a more consistent indoor temperature throughout the year, reducing cold drafts and overheating during warmer months.
Reduce Condensation
Double glazing helps minimise moisture build-up on windows, creating a drier and healthier living environment.
Quieter Home
The additional glass layer and insulating gap help reduce outside noise, making your home more peaceful and comfortable.
Lower Energy Bills
By retaining more heat inside your home, double glazing can reduce your reliance on heating and cooling, helping to lower energy costs over time.
Retain Your Existing Joinery
In many cases, your existing window frames can be retained, making retrofit double glazing a practical and cost-effective upgrade.
Why Choose A & T Glass?
Our experienced team has helped homeowners throughout the Central North Island improve the comfort and performance of their homes with professional retrofit double glazing solutions. We pride ourselves on quality workmanship, expert advice and a seamless installation process from start to finish.
Ready to Make Your Home More Comfortable?
Contact our team today to arrange a free consultation and quote. We’ll help you find the right double glazing solution to suit your home, lifestyle and budget.


