Bygone Harmony Arched Sash Windows installed in West London
Our customer approached us seeking to replace their ageing wooden sash windows and there were several specific requirements; most notably, the arched heads on the original timber frames. Given the period character of the street, the homeowner wanted new sash windows that closely resembled the originals in both style and proportion. Additionally, the windows needed to be durable, energy-efficient, and provide effective noise reduction from the road nearby.
With our knowledge of local conservation and planning regulations, we confirmed with the local authority that while the property was in a conservation area, it was not subject to additional restrictions. This allowed the windows to be replaced under Permitted Development Rights, which require a similar visual appearance but are material neutral, meaning timber-alternative materials were acceptable in this case.
To replicate the arched openings, the team utilised the exclusive London Sash & Frame feature which is designed and engineered by Masterframe Sash Windows. This bespoke solution was crucial to preserving the property’s traditional appearance while meeting modern standards.
To combat the road noise, the front-facing windows were fitted with acoustic glazing. This specification included a 6.8mm laminated glass pane, constructed with two 3mm panes and an internal acoustic interlayer, providing a significant upgrade in noise reduction compared to the original single-glazed windows.
The installation team used a traditional installation method, fitting timber liners into the window aperture. This not only enhanced thermal insulation but also provided a solid timber base, allowing the original shutters to be refitted perfectly—a detail often overlooked in modern installations.
What our customer said
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