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Windows, doors & conservatories - London, Surrey, Kent & surrounding areas
Osborn Glass, 33/34 High Street,
South Norwood, London, SE25 6HA
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Aluminium Sash Windows

Osborn Windows > Windows > Aluminium Sash Windows

Aluminium sliding sash windows offer you the best of both worlds when replacing your windows—modern security and strength alongside a heritage look.

The aluminium frames also offer more for more glass, ergo more light, and a thinner overall structure. The sash finish is perfect if you’re trying to maintain a charming or cottage-like aesthetic while bringing your windows into the 21st century. 

Bay and Bow Windows
UPVc Box Sash Windows, Conservation Area KT3

Aluminium sliding windows

Our sliding aluminium windows are versatile, durable solution for flats, commercial properties and domestic houses. Unlike UPVc and timber sliders, aluminium sliders can slide both vertically and horizontally. Our dual slide is the new solution to vertical and horizontal sliding windows, utilising advanced polyamide thermal break technology. The dual slide provides high thermal performance without the need to resort to foam filled profiles or complex and costly sealed unit specifications.

Giving you more glass options

The current building regulation for replacement windows requires a minimum of a C energy rating. Osborn Glass as standard offer the higher A energy rated window as standard. There is now an option to enhance the energy-saving with triple glazed windows.

Our windows are glazed with standard clear or obscure Pilkington glass, depending on your requirements. There are many different types of decoration that can be applied. By applying lead, Georgian bar or even a stained glass design to the window you can add that personal touch. For the range of glass options please see our glass and glazing page.

Available in a range of colours

Our aluminium windows have a powder-coated finish as standard. Like our other products, these are also available in any RAL colour. Shown below are our standard colours. Matte, satin or gloss finishes can be provided.

There’s no need to worry about intruders

Aluminium windows offer maximum security and strength due to the construction and materials that they are manufactured with. Our windows conform to BS 7950/4873, enhanced security performance of casement and tilt/turn windows for domestic applications.

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