We start with the architecture, existing joinery and what you want to improve.
Box Sash Projects
Work designed around the building.
A selection of timber windows and entrance doors showing the details Box Sash considers before manufacture — proportion, material, finish and how the joinery sits within the architecture.
Made in BritainMade to measure by Box Sash in our UK manufacturing operation
FENSA RegisteredProfessional installation and compliance
FSCResponsible timber sourcing
50
50-Year GuaranteeTimber-frame reassurance built around long-term quality
Quality at the heart of the work
The detail is what makes the finished project believable.
Box Sash does not treat the window or door as a standalone object. The surrounding brick, stone, render, existing proportions and the way the room is used all affect the right specification.
That is why made-to-measure joinery matters: the product can be designed around the building rather than asking the building to accommodate a standard product.
Sash windows
Traditional sash proportions, carefully resolved.
The strongest replacement work is the work that does not shout “replacement”. Meeting rails, glazing bars, frame widths and the relationship to the masonry are considered together so the finished window belongs to the house.
Casement windows
Made around the opening, not pulled from a catalogue.
Casement windows can look simple, but good proportions take work. Opening lights, mullions, glazing bars, finish and hardware all need to sit comfortably within the architecture.
Entrance doors
The first detail people notice.
A bespoke timber entrance door should feel part of the façade. Colour, panel proportions, glazing, fanlights and brassware are treated as one composition rather than a set of unrelated choices.
How a Box Sash project comes together
From the house to the finished joinery.
Proportions, glazing, finish, hardware and performance are resolved around the brief.
Your joinery is made to measure by Box Sash using solid timber and specialist craftsmanship.
The product and the way it is fitted are considered together from the beginning.
Your home next
Tell us what you want to change.
Start your quote online or speak to Box Sash about the property, the existing joinery and the result you want to achieve.