What is genuine retrofit double glazing?


Retrofit double glazing is a process designed to upgrade existing windows by installing new, fully sealed double-glazed units into the existing frame. This approach offers multiple benefits, including improved energy efficiency, noise reduction and enhanced comfort within the space - without the cost of completely replacing your joinery.

  • In the case of aluminum frames, the process involves removing the old single-pane windows and opening sashes. These are then replaced with new, fully sealed double-glazed units along with new color-matched aluminum sashes, beading and window fasteners. This comprehensive replacement ensures that the new units seamlessly integrate with the existing frame, while also providing upgraded functionality, superior insulation and durability.

  • For timber windows, the retrofit process is tailored to preserve and upgrade the aesthetic and functionality of the original design. This involves removing the old putty and glass from the timber sashes and installing the double glazing into the existing timber framework. Importantly, our superior technique means that no metal or aluminum componentry is added to the sashes, ensuring that the windows retain their authentic appearance and operate as intended.

The benefits of opting for retrofit double glazing


Retrofit double glazing is a smart way to upgrade your home’s comfort and performance without the disruption of a full window replacement. It brings the advantages of modern window technology while preserving the character of your existing joinery.

Here’s what you’ll gain:

Comfort & Warmth
Improved insulation keeps your home warmer in winter, cooler in summer, and free from drafts and condensation.

Peace & Quiet
Enhanced soundproofing reduces outside noise for a more tranquil living environment.

Energy Efficiency
Better thermal performance helps lower heating and cooling costs, making your home more sustainable.

Preserved Character, Minimal Disruption
Upgrade without altering the look of your home — the process retains your existing frames and avoids invasive renovation work.

Before

After

Ready to make your home more comfortable and efficient?

Start saving on energy and enjoying a quieter, cosier home.
Book your free consultation with our retrofit glazing specialists today.