Secondary Glazing
Retain heat, decrease external noise and increase security.
What is secondary glazing?
Secondary glazing features the installation of a slimline, discreet aluminium panel fixed either within the reveal or to the face of the existing window. Specifically, effective secondary glazing should be barely visible to the naked eye. Consequently, it bolsters both the thermal and acoustic performance of the primary window without altering its appearance.
Furthermore, as an independent unit that operates separately from the existing window, secondary glazing is an ideal solution. Ultimately, this provides a high-performance alternative for heritage properties or listed buildings where window replacement is not an option.
Types
Versatile Multi-Panel Window Solutions
These systems are suitable for a wide range of windows, such as casement, hinged, or any style featuring vertical bars. Specifically, they are available in configurations of two, three, four, or five panels to suit any architectural requirement.
Furthermore, the sashes are designed for maximum convenience; consequently, they can be completely removed whenever you need to clean the existing window. Ultimately, this high-performance design ensures that your windows remain both functional and easy to maintain throughout the year.
Vertical Sliders for Traditional Box-Sash Windows
Vertical sliders are designed to be used in conjunction with traditional box-sash windows. Specifically, they maintain the heritage aesthetic of your property while providing modern performance. Furthermore, a tilt-in option is available; consequently, this enables both panels to individually tilt into the room for easy cleaning. Ultimately, this high-performance solution ensures that maintaining your classic windows is both safe and effortless.
High-Performance Hinged Casements
Hinged casements are normally used in conjunction with standard casement windows or traditional box-sash windows. Specifically, they are designed to provide a discreet and effective secondary layer. Furthermore, the glazed panes operate on high-quality hinges and open directly into the room. Consequently, this allows for easy access and full ventilation while maintaining the original character of your home.
Discreet Fixed Secondary Glazing
Our most simple secondary double-glazing product is typically used when the available area for fixing is minimal. Specifically, it is engineered for tight spaces where traditional frames may not fit. Furthermore, once installed, the glazed panel is a permanent fixture and cannot be removed. Consequently, this provides a robust and secure thermal barrier that remains stable and effective for years to come.
Lift-Out Secondary Glazing
Lift-out units offer a practical, cost-effective solution for windows that require occasional access. Specifically, each removable panel sits within its own slimline aluminium frame. Furthermore, these panels can be lifted out easily using the integrated Easy Lift Fin. Consequently, this design ensures that maintaining or accessing your primary windows remains a simple, tool-free process while still providing high-performance insulation.
High-Performance Secondary Glazing Solutions
External noise issues can be effectively managed and controlled. Specifically, our systems can eliminate external noise by up to a whopping 80%. Consequently, this creates a significantly quieter and more peaceful living environment.
Furthermore, our secondary glazing is designed to complement historic, contemporary, or unusual designs. In addition, with over 200 RAL frame colours available, you can achieve a perfect aesthetic match for any property.
Regarding technical specifications, we offer everything from 4–8mm thickness glass to advanced thermal coatings—all of which are fully customised. Specifically, this heat-efficient secondary glazing reduces your utility bills, makes your home more comfortable, and minimises your environmental impact. Ultimately, with a 10-year guarantee for all frames and glazing, our British factory-made units are truly engineered to last.