Update your property with beautifully engineered Spiral Balance windows that offer sleek vertical sliding operation, superior insulation, security, and lasting style




Sliding Sash Spiral Balance windows are a modern version of windows designed by Robert Hooke back in the 17th century. The weight and cord attached to it, which initially were the opening mechanism, have been replaced by spiral balance manufactured by Caldwell for easier sliding. The traditional English look has however been entirely preserved. Vertical opening allows for the space around the window to be fully utilised
For the production of frames we use the following species of wood: pine, oak and meranti. Other types of timber are available on customer’s request. We use 80100 year old pestfree timber coming from trusted FSCcertified suppliers.
Windows may be single, double or triple-glazed. Triple-glazed units have the best insulating properties. We offer a large selection of glass types:
Frames are available in a wide range of RAL colours or any other specified by the client. We use weatherresistant Teknos Gori paints which are very durable and resistant to sunlight. We offer both opaque and translucent Teknos Gori paints. Dual colour frames are available upon request.
Technical drawing