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


Blackthorn Timber Windows supply and install timber windows within the York 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 York area, supplying and fitting timber windows.

New Georgian windows in York

These traditional casement windows - Flush with an extended frame - have Georgian bars to replicate the style of the original windows whilst provided the benefit of high-performance glazing, enhanced security and long lasting materials with a durable paint finish.

Blackthorn suppies and installs new Georgian windows

Custom Windows in Flush Casements in York

These custom windows were created by adding a decorative drip along the transom and hanging the opening sashes on traditional butt hinges to create windows that closely match those being replaced.

With double or triple glazing and high-performance timber factory painted to provide a pristine finish these custom windows are an environmentally friendly and long-lasting replacement solution.

Custom Windows

Yorkshire Sliding sash windows, York

This lovely house is Grade II listed, and is believed to date back to the reign of Charles 1st - early 17th Century.

We supplied and installed Yorkshire sliding sash windows (horizontal sliding sashes in a deep frame) and flush casement windows to replace a mixture of old Yorkshire Sliders and 1970’s casement windows.

The location is Great Ouseburn - between York, Harrogate and Thirsk. Listed Building Consent was required in order to proceed with window replacement and was granted because we were able to meet the strict specification criteria.

We were allowed to use special slim double-glazed units ('Heritage glazing') with a 6mm gap between the panes and the narrow timber glazing bars had to be solid 'through-bars' instead of the usual bonded bars. Every pane of glass is a separate glazing unit held in with butyl-based putty and over-painted to match the timber.

Timber Sliding Sash Windows

I really like this photograph of one of the timber sliding sash windows fitted into a 19th Century stone-built house in York.

New Sash Windows

You can see that the owners have lovingly restored their home and maintained the character of a Victorian-age house whilst adding the benefits of modern life. The double glazed sash windows will not only be draught-proof (no rattling sashes or warm air leaking out) but will reduce heat loss through the glass by 70%. This means no more cold zones close to the windows and an even temperature across the rooms.

Timber Sash Windows York

This was a lovely job that we carried out using our Slimline Sash windows to transform the exterior appearance and interior space of this extended early-Victorian Terrace house near York. Four fairly nondescript wooden casement windows to the rear of the property were removed and replaced with taller sliding sash windows complete with '6-over-6' glazing bar details.

Brick House with Sash Windows

The beautiful high-ceilings of the kitchen and bedroom were being compromised by the inappropriate use of the short casement windows leaving high internal window cills and insufficient natural light. We removed several courses of brickwork below each window to add just under 1 metre of extra height. The result looks great and really brings the lovely views and plenty of daylight into the rooms. Our timber sash windows were sited approximately 50mm back from the front face of the brick in keeping with the surrounding style.

Timber Casement Windows Installation near York

This is an installation of square-leaded timber casement windows and hardwood French doors near York, North Yorkshire.

Timber Windows with red brick

The building, a former coach house has been converted into a gym and studio complete with self-contained kitchen.

Internal view of timber casement window External view of timber casement window and timber patio doors

Blackthorn Timber Windows supply and install quality timber windows and all types of timber doors throughout North Yorkshire and the North of England.

Click here for more information about casement timber windows, or click here for more information about timber french doors.

Cottage-style timber windows

The cottage style window combines the style of a sash window with the benefits of a modern top-hung casement window.

Multi-point locking and lockable 'night-vent' sash positions give excellent century security whilst the carefully designed weather-seal offers the highest protection against the elements. The harder the wind blows the more the sash is pressed against the gasket, ensuring comfort and peace of mind even in the fiercest gales.

These top-hung casements were made with a 'sash horn' detail on the opening sashes to give a look of a sash window but with a slender 68mm frame.

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