The sensitive replacement of traditional box sash windows is our speciality. Our unique collection includes the slimmest traditional box sash window available in the UK, as well as rarefied solutions for listed buildings and conservation areas.
Common throughout is an attention to proportion and accuracy of detail which allows us to faithfully replicate the simple grace of the original English box sash.
Modern technology ensures that our Timberwindows sash windows will not warp or twist, require very little maintenance and provide 21st Century standards of insulation and security
The Factory Finished Four Coat System results in an extremely high quality finish meaning that the windows come with an 8 year guarantee (5 years for stains) against flaking and blistering and a 30 year guarantee against fungal damage