Polygonal PVC windows
Custom PVC windows for triangles, trapezoids, gables and other angled openings.
Accurate geometry and practical openings
We record dimensions, diagonals and actual angles, then decide the division between fixed and opening sections.
Combining fixed polygonal glazing with rectangular opening sashes can provide natural light and practical ventilation.
Dimensions, angles, glazing weight and the profile system set the manufacturing limits. We check these before agreeing the design.
Shape and function together
Accurate geometry
We record measurements, diagonals and angles of the actual opening.
Make use of the opening
Made-to-measure fixed glazing follows areas that a rectangular unit would leave unused.
Practical opening sections
Combine fixed and opening sections within the system’s technical limits.
Designing an angled window
Geometry
We take measurements, diagonals, angles and references from the opening.
Layout
Choose the fixed sections, opening sashes and mullions to balance light and use.
Validation
We check profile limits, glass, hardware and transport.
Installation
Position, secure, seal and adjust the complete assembly.
Triangular, trapezoidal and octagonal windows
Polygonal PVC windows make use of angled openings in attics, stairwells and contemporary façades. Each configuration is designed around the actual geometry and system limits.
Combine fixed and opening sections
Some polygonal shapes cannot be used as opening sashes. A practical solution can combine fixed polygonal glazingthat follows the opening withrectangular hinged or tilt-and-turn sashes for ventilation and cleaning.
Measure angles as well as dimensions
We record the opening’s diagonals and angles, check the profile limits and glazing weight, and plan transport before manufacturing. A drawing of the intended assembly helps clarify the layout before the order is agreed.
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Attics, gables and stairwells
Angled openings occur in attics, gable façades, stairwells and contemporary homes. A made-to-measure polygonal PVC window follows this geometry. Its final performance depends on the selected profiles, glazing, dimensions and installation.
See other options in our special window designs.
Coordinate the whole window assembly
A polygonal section often forms part of a larger assembly: a fixed triangle above a balcony door, a trapezoid above a window, or an octagon alongside rectangular units. Using a compatible series and the same finish helps the different sections look consistent.
Frequently asked questions
Can you manufacture an octagonal PVC window?
An octagonal design can be assessed as a fixed unit or an assembly incorporating an inner rectangular opening sash, depending on dimensions and system limits.
Can a triangular PVC window open?
Triangular sections are usually fixed. Where ventilation is needed, they can be combined with a rectangular hinged or tilt-and-turn section, subject to the design and profile limits.
Which glazing can a polygonal window use?
It can use the glazing specified for the chosen system, including low-emissivity double glazing. We assess whether safety glazing is appropriate for its position and intended use.
Can angled PVC windows have coloured finishes?
The chosen series offers a range of finishes. We confirm which are compatible with the angles and manufacturing limits of the particular design.
Do you have an unusually shaped opening?
We measure the actual opening and explain the feasible options, with no obligation.