Sash Window Restoration, Replacement Sashes

The English riviera was the destination for this sash window project with the scope of works being to upgrade these traditional box sash windows for improved thermal efficiency. With a requirement for minimal disturbance, our customer was looking for an alternative solution to complete window replacements.

This property benefited from high quality existing box frames meaning that along with some minor repairs, we were able to install replacement double glazed sashes (the sliding parts) into the existing box frames along with our sash window draught seal system.

Arched top sashes are always a little more challenging to manufacture however, with accurate templating and CAD design software we were able to match the existing profiles exactly. The replacement sashes were manufactured from Accoya for maximum service life and minimal maintenance. Being fully painted and glazed in our South Devon workshop meant the installation process was more time and cost efficient than replacing the entire windows.


The double-glazed sashes incorporated our unique perimeter draught seal system for maximum heat retention whilst eliminating rattles and reducing external noise pollution. Replacement lockable hardware completed the windows for maximum security.

“JTP Joinery made and fitted replacement sash for several windows, plus repairs to some of the frames. Very pleased with the quality of the new windows, and the remarkably short time it took to make them. Jack and Herbie did a fine job on-site and left everything tidy. This is the second time they have done work for me, and I would happily recommend them.”


Mrs Gore

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