01 / Casement
Single-sash casement
Side-hinged opening, configured for your room.
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Choose an opening system to suit your space, from everyday ventilation to wide connections between indoors and outdoors.
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SPIER-IN / Windows
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Explore the opening types. Filter the collection and select an image to see the details.
18 options
02 / Casement
Tilt & turn
Side opening and tilt ventilation in one sash.
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03 / Casement
Two-sash combination
A casement sash paired with a tilt-and-turn sash.
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04 / Casement
Three-sash windows
Three modules with opening functions chosen for the project.
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05 / Casement
Four-sash windows
A wider composition with coordinated opening sequences.
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06 / Casement
Ribbon windows
A horizontal rhythm of fixed and opening modules.
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07 / Terrace doors
Single terrace door
A full-height opening onto a balcony or garden.
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08 / Terrace doors
Double terrace door
Two glazed sashes for a wider passage.
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09 / Sliding
Tilt & slide
The sash moves out and slides beside the adjacent panel.
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10 / Sliding
Parallel sliding
Parallel movement; the specific system is confirmed on request.
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11 / Ventilation
Manual bottom-hung
Top-edge tilt for ventilation with manual control.
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12 / Ventilation
Motorised bottom-hung
An electric actuator operates the ventilation opening.
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13 / Sliding
Lift & slide
The handle lifts the moving sash before it slides.
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14 / Sliding
Minimal aluminium
Slender profiles place the emphasis on glass and daylight.
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15 / Sliding
Two or three tracks
Sliding panels overlap along parallel tracks.
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16 / Sliding
Sliding & insect screens
Four-sash layouts and compatible sliding insect-screen options.
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17 / Sliding
Aluminium multi-track
Three, four or five tracks, configured for the opening.
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18 / Folding
Folding systems
Connected panels fold to the left or right.
Explore details See in catalogueIllustrative elevations from the catalogue, not installation photographs. Configurations and availability are confirmed for each project.
Materials & finishes
- PVC — thermal comfort and easy maintenance
- Aluminium — clean lines and durable profiles
- Wood — natural warmth and character
- Wood–aluminium — complementary materials
For dimensions, finishes and technical specifications, contact us with your project requirements.
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SPIER-IN / WINDOWS AND MORE
Windows Collection
Explore opening types, sliding and folding systems, material choices and configurations for windows and terrace doors.
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