Fixed secondary glazing units are permanently installed and non-opening, making them ideal for windows that don’t require regular access. These offer excellent thermal and acoustic performance while preserving the original window’s design with no sightlines. Fixed units can also be combined with other window styles as part of a larger secondary window. offer excellent thermal and acoustic performance while preserving the original window’s design with no sightlines.

Lift-out secondary glazing panels are designed to be easily removed and replaced. This type is ideal for windows where access is infrequent but where a high level of insulation is still required. The lift-out design ensures that the secondary glazing is discreet when in place and easy to handle when removed.

Hinged secondary glazing units operate like a door, swinging open to provide easy access to the original window. This type is ideal for areas where regular maintenance or ventilation is needed. Hinged units offer excellent insulation and can be customised to fit various window sizes, styles and can also be hung from either side. Hinged units typically open inwards, so it is important to consider any current factors like blinds or curtains.

Tilting vertical sliders offer the same advantages as our standard option, with the added benefit of a 45-degree tilt-in function. This advanced feature allows the sashes to tilt inward for safe cleaning. Additionally, the sashes can be fully removed for even greater convenience.

Swift secondary vertical sliders are designed from the ground up to fit over traditional sliding sash or modern ‘mock sash’ windows. As one of the most popular window styles found in listed buildings, they use tensioned balances to support the sashes, letting them slide up and down easily. This style is particularly suited for sash windows and properties where maintaining a traditional look is important.

There is also the option of upgrading to tilting vertical sliders, allowing for easy cleaning and maintenance of both the primary and secondary windows.

The most popular secondary glazing option, horizontal sliders feature panels that glide smoothly from side to side. Perfect for wide windows or spaces with limited vertical clearance, they offer easy access to your existing window and outstanding insulation—without requiring extra room to open.