'Alternative to Timber' and Aluminium windows & doors
Timber Windows


Blackthorn Timber Windows supply and install timber windows within the Cumbria area, and we offer the most comprehensive range of wooden windows in quality softwood or hardwood.

Quality Timber Windows with a 30 Year Guarantee
Timber Windows

We provide a wealth of information on our website about timber windows, but we'd be happy to visit your home or arrange a call-back.

We have a no pressure approach to meeting our customers and we always send written quotations following a visit. We understand that these projects sometimes take a while to get off the ground and we know that our customers don't want to be hassled so we simply send the quotation and wait. Some customers come back within a week, others take a month or even a year and that's fine.

Below you'll find a selection of work we have undertaken in the Cumbria area, supplying and fitting timber windows.

Wooden Sash Windows in Cumbria

These traditional box sash windows with unique single sash in the centre are glazed with heritage double glazing and slim astragal bars for a truly authentic appearance.

Wooden Sash Windows

The inclusion of Krypton gas into the slim glazing ensures that the thermal efficiency is as good as the appearance.

Wooden Sash Windows Internal View

Barn Conversion Windows and Doors in Cumbria

These French doors and Stormproof casements windows provide this barn conversion with warmth and security along with a substantial amount of style and elegance. They are fully factory painted in Muted Olive to ensure a durable and long-lasting finish.

Barn Conversion Windows and Doors

With high-performance double-glazing, security hinges along and multipoint locking they provide complete peace of mind.

Norman Arch Glazing Bar detail, Cumbria

Located near to an ancient abbey, this house reflects the surroundings with a fine timber glazing bar detail. In this case id is applied to Flush Casement windows but can equally work on Stormproof Casements and Sliding Sash windows.

Traditional Box Sash Windows in Cumbria

The small villages nestling between Carlisle and the Pennines in the north-east of Cumbria contain a wide range of architectural styles and ages. This installation of box sash windows was at a really nice house in just such a village, commanding spectacular views of the Lake District fells in the distance.

Sash Windows in Cumbria

The old sash windows were draughty, impossible to open and prone to excessive condensation throughout the winter. This, in-turn was making them mouldy on the lower timber rails.

Brass pulleys on sash windows

Some of the windows were absolutely fine and these have been left in place but most of the ground floor and half of the upstairs sash windows were changed. We installed our traditional sash windows complete with brass pulleys and lead weights to re-create the full character of windows in a property that has always been rather grand.

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