High-performance retrofit double glazing, installed into your existing frames
At ComfortGlaze, we make homes warmer, quieter, and more energy-efficient by upgrading your existing windows with modern double glazing. Our experienced team installs new insulated glass units into timber and aluminium joinery, delivering lasting comfort, improved insulation, and reduced condensation without the need for full window replacement.
How Retrofit Double Glazing Works
Retrofit double glazing replaces your existing single glass with modern insulated double-glazed units while keeping your current window frames. This means your home benefits from improved warmth, reduced condensation, and better energy efficiency without the cost and disruption of full window replacement.
Because the work is completed within your existing timber or aluminium frames, installation is typically faster and more cost-effective than installing entirely new windows.
Michelle Barrett
We started using Comfortglaze last year for a few rooms, and have called them back several time to do more windows in our home. Customer service, communication and onsite jobs have all been smooth sailing and well executed. Each team member that has come to our home has been professional, friendly and has done an awesome job. Well done team. So happy to have partnered with you with our biggest asset. We are not finished yet, so you will see more of us! Thank you!
The Barrett Family.
"
"
High-Performance Double Glazing
Our double-glazed units are manufactured using world-class components and industry-leading global technology. Each unit features a thermally improved warm-edge spacer that bonds the glass panes together, helping retain argon gas for long-term performance. Combined with argon-filled units and high-performance Low-E glass, this system delivers excellent thermal efficiency and comfort.
Home Comfort Steps
1. Home consultation
One of our team visits your home to assess your existing window frames and discuss your retrofit double glazing options. After the visit, we provide a clear, free, no-obligation quote for your project.
2. Final measurement
If you choose to proceed, we return to take precise final measurements so your new insulated glass units can be manufactured to fit your existing frames perfectly.
3. Manufacture
Your custom double-glazed units, new opening windows, and any other materials needed are then manufactured specifically for your home.
4. Professional installation
Once ready, our installers fit the new double-glazed units into your existing timber or aluminium frames, improving insulation while keeping the original structure of your home.
5. Final check
We complete a final walkthrough with you to ensure everything is installed correctly and you are fully satisfied with the result.
