Rowntree House | Sash windows renovated & crafted for this Grade II listed townhouse in central York

The Grade II listed building, Rowntree House in York, was the birthplace of Joseph Rowntree. In 1857, George Cadbury worked there as an apprentice, where he honed his skills as a chocolatier. Property Developer and Construction company, Stonehouse, recently took responsibility for turning this once-dilapidated building into eight luxury apartments. And, with such rich and important heritage, it was key that any work carried out as part of the project was completed to the highest quality – including the sash windows which form an important part of the building façade on the streets of York.

Ventrolla were contacted by Stonehouse to survey more than 30 windows in this spectacular property, with a view to repairing and replacing the sash windows and casements windows as part of a sympathetic renovation in York.

Stonehouse were keen that this exciting project would retain as many original features as possible, blending them with a luxurious and contemporary fit-out. So, modernising the windows in terms of finish, energy efficiency and warmth was a must.

On-trend interiors form part of the luxury apartments at Rowntree House

Completing the renovation of Rowntree House was a labour of love for all involved – due to the careful preservation of as many windows as possible, and the meticulous crafting of new windows in line with the Listed Building Consent. The team at Stonehouse worked closely with the Rowntree Society to ensure the renovation was appropriate.


We restored and repaired a large number of sash, casement and bay windows, integrating our innovative Ventrolla Perimeter Sealing System (VPSS) to ensure draughts were eliminated, and our Sash Removal System, to make it easier for windows to be decorated and repaired in the future. A number of window sills were replaced and hardware was upgraded, too – in antique brass and chrome finishes, to meet the specification.

Rowntree House York, sash windows by Ventrolla. Image credit & project by Stonehouse.

“Rowntree House was a very challenging project, due to the scale and detail involved, but also immensely satisfying. We have all played our part in breathing life back into this building, which is pivotal to the history of York. The team at Ventrolla played an integral role to this transformation, combing meticulous attention to detail with their unrivalled expertise in restoring and replacing timber windows. We’re very proud of the finished project.” – Steve Waugh, Managing Director & Founder, Stonehouse

You can read more about the work that Stonehouse does on their website –

Can we help with your period window or door project?

If you have a wooden window or door project to tackle, either residential or commercial, you can find out more about our renovation services and speak to a member of our team on 0800 0277 454 or by contacting us here


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