At Cowen Windows, we use the latest glazing technologies to help make your home warmer, more comfortable, and more energy efficient. By combining high-performance glass with innovative insulating components, our windows are designed to minimise heat loss, reduce energy consumption, and potentially lower your heating bills.
Super Spacer Technology – Unlike conventional double-glazed units that use metal spacer bars around the edge of the glass, Super Spacer technology features a non-metal insulating spacer that significantly reduces heat transfer around the window perimeter. This advanced warm-edge system helps improve thermal efficiency, minimise condensation, and maintain a more comfortable indoor temperature throughout the year.
Argon Gas-Filled Units – Our double-glazed units are filled with Argon gas, a safe, colourless, odourless, and non-flammable gas that provides superior insulation compared to standard air-filled units. By slowing the transfer of heat between panes of glass, Argon gas helps improve energy efficiency, keeping warmth inside during the winter and reducing heat gain during the summer.
Benefits of Our Advanced Glazing
- Improved energy efficiency and lower heat loss
- Reduced heating costs
- Enhanced indoor comfort all year round
- Lower risk of condensation around window edges
- Improved thermal performance compared to standard double glazing
- Reduced external noise intrusion
- Greater overall window performance and longevity
By incorporating advanced glazing technologies such as Super Spacer and Argon gas-filled units, Cowen Windows delivers high-performance windows designed to keep your home warmer, quieter, and more energy efficient for years to come.

Call Cowen Windows on 01947 603923 today to discuss your requirements and arrange your free quotation.