
Working Within A Conservation Area?
Being located within a conservation area doesn't automatically mean every replacement window must be an exact replica of the original. Planning requirements vary between local authorities and depend on the specific property, the existing windows and any planning conditions that apply.
That's why selecting the correct timber sash window system at the beginning of the project can save valuable time, unnecessary cost and avoid delays during planning. Whether you're renovating a period property, undertaking a self-build or replacing existing sash windows, understanding conservation requirements can be confusing. Our technical team helps builders, self-builders, architects and homeowners identify the most appropriate timber sash window specification before manufacturing begins.

Do You Need Heritage Windows?
Not necessarily. Many properties within conservation areas can successfully utilise our Classic Window System. Our technical team can help determine which specification is likely to be most appropriate for your project.
Heritage windows are typically reserved for:
Listed Buildings
Highly sensitive conservation projects
Properties requiring authentic historical replication
Which Window System Is Right For Your Project?
Our Period Home Renovation range includes two specialist sash window systems, each designed for different property types and project requirements.
Designed for period property renovations and replacement sash windows where traditional appearance and modern performance are equally important.
Slim 50mm Sash Sections
Traditional Detailing & profiles
20mm Double Glazing (U-Value: 1.4)
Traditional Weights & Cords
100% Grade 1 Accoya Timber
Complies with Part L, Part K, Part B Building Regulations
Our Most Versatile Window System
Designed for projects requiring authentic like-for-like replacement where historical accuracy is essential.
Authentic 48mm Sash Sections
Traditional Glazing Bars & Historic Detailing
12mm Individual Glazing Panes (U-Value: 2.7)
Optional Vacuum Sealed Double Glazing
100% Grade 1 Accoya Timber
Complies with Part K and Part B Building Regulations
Listed Building Suitable
Download The Free Conservation Area Guide
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