Casement Window Secondary Glazing
Versatile secondary glazing solutions for all types of casement windows. Whether you need side-hung panels that mirror your originals, top-hung ventilation, or fixed thermal barriers, we have the perfect solution.
Flexible Casement Solutions
All Sizes
From small bathroom windows to large feature casements.
Multiple Openings
Side-hung, top-hung, fixed, or lift-out configurations.
Secure Locking
Multi-point locking systems for enhanced security.
Opening Options for Every Need
Hinged panels that open outward like your original casement windows. Available in single or double configurations.
- Opens for ventilation
- Easy access for cleaning
- 90° or 180° opening
Panels hinged at the top that tilt inward for ventilation. Ideal where full opening isn't required.
- Tilt-in operation
- Secure ventilation
- Space-efficient
Non-opening panels for windows where ventilation is provided elsewhere. Maximum thermal and acoustic performance.
- Best insulation
- Lowest cost option
- Slimmest profiles
Removable panels that can be taken out entirely for cleaning or storage during warmer months.
- Easy removal
- Summer storage option
- Full window access
Secondary Glazing for Modern & Traditional Casements
Casement windows — those with side-hung or top-hung opening panels — are found in properties of all ages across London. From traditional timber casements in Edwardian cottages to modern uPVC units in contemporary apartments, we provide secondary glazing solutions for every type.
The key decision with casement window secondary glazing is the opening mechanism. If you need regular access for ventilation, side-hung or top-hung panels allow you to open the secondary glazing independently of the primary window. For windows where ventilation is provided elsewhere, fixed panels offer the best thermal and acoustic performance at the lowest cost.
All our casement secondary glazing uses slimline aluminium frames that minimise visual impact. The frames are available in a range of colours to complement your existing windows and interior decor.
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Cut noise by up to 54dB with acoustic-optimised glazing.
Thermal Secondary Glazing
Reduce heat loss by up to 64% and lower energy bills.
Secondary Glazing London
Our complete secondary glazing service across every London borough.
Listed Buildings
Heritage-approved, fully reversible glazing for listed homes.
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