Guillotine Glass
Guillotine glass is a movable glass enclosure system in which glass panels slide upward vertically, operate with one hand thanks to a gas-piston balance mechanism, and do not take up space on the sides. While enclosing balcony, terrace, café, and restaurant façades against wind, rain, and cold, it preserves the view and daylight; in good weather the façade opens by lowering the panels, and in bad weather a protected indoor area is created by sliding them upward. Thanks to its vertical operation, unlike sliding glass it does not require sideways opening space; this makes guillotine glass the most practical solution, especially for narrow balconies and terraces. GlobalTente guillotine glass, with its slim-framed/frameless design and high-quality mechanism, operates quietly and smoothly for many years.
In guillotine glass, each glass panel moves vertically up and down within side guide rails. The gas-piston balance mechanism keeps the heavy glass panel suspended at the desired height; thus the panel is slid up or down effortlessly with one hand. When the panels are up, the façade opens completely and the area turns into a spacious terrace; when lowered, a water- and wind-tight front is formed thanks to the EPDM gasket and brush systems. In multi-panel applications, the panels overlap to create a compact stack. This vertical operating principle provides both space savings and a panoramic view.
Technical Specifications
FeatureValue System typeVertical sliding (guillotine) glass — slides upward Glass8-10 mm tempered; optional double glazing (insulated glass) ProfileAluminum, electrostatic powder coating; slim-framed/frameless Max. heightApprox. 3 m per level (depending on number of panels) OperationGas-piston balance; up and down with one hand SealingWater and wind insulation with EPDM gasket + brush Space usageRequires no side space (operates vertically) Warranty2-3 years on mechanism and profile Usage, Automation, and Maintenance
- Space-saving: Ideal for narrow spaces thanks to vertical operation.
- One-hand use: Effortless opening and closing with gas-piston balance.
- Panoramic view: Open view with a frameless appearance.
- Full sealing: Water and wind insulation with gasket and brush.
- Flexibility: Fully open in good weather, fully closed façade in bad weather.
In guillotine glass, the two elements that determine safety and smooth operation are the quality of the glass and the mechanism. Panels are generally made of 8-10 mm tempered glass; tempered glass is impact resistant and, when broken, separates into small, non-sharp pieces. Profiles are aluminum and coated with electrostatic powder paint. The heart of the system is the gas-piston balance mechanism; high-quality pistons keep the panel at the desired height for years and provide light one-hand operation, while weak pistons gradually lose strength over time. EPDM gasket and brushes maintain water and wind sealing. GlobalTente delivers long-lasting and quiet operation with high-quality components.
A practical version of guillotine glass is also wipe-clean guillotine glass; in this model, the top panel can be tilted inward and the outer surface of the glass can also be cleaned safely from inside. Especially on upper floors, where access from outside is difficult, the wipe-clean guillotine offers great convenience. While the standard guillotine glass is an economical and sturdy solution, the wipe-clean model is preferred for its cleaning comfort. Both models share the same vertical operating principle and sealing advantages.
- Extends the season: Balcony and business façades can be used in all four seasons.
- Makes heating easier: Once wind and drafts are blocked, the space warms up quickly.
- Preserves the view: Panoramic view even when closed.
- Friendly for narrow spaces: No side-opening space required.
- Safe: Tempered glass and a balanced mechanism.
- Enclosing residential balconies and terraces (especially narrow spaces)
- Café and restaurant façades and winter gardens
- Closing the sides of a pergola
- Hotel terraces and scenic seating areas
Guillotine glass is ideal for narrow balconies and terraces, façades with no sideways opening space, and areas where frequent opening and closing is required. Because it operates vertically, it does not need the side sliding space required by sliding glass; this makes it the most practical solution for limited spaces. If easy cleaning on upper floors is desired, wipe-clean guillotine; if there is a wide and straight opening, sliding glass; if the priority is to open the façade completely, folding glass are considered alternatives. All movable glass solutions are part of the glass systems family.
Guillotine glass slides upward vertically and does not take up space on the sides; sliding glass slides horizontally on rails and requires side space where the panels can stack. Guillotine glass is advantageous on narrow façades or façades without side walls; on wide, straight, and long openings, sliding glass offers a smoother use. In guillotine glass each panel can be opened independently and gradually, while in sliding glass the panels are gathered to one side. If you need full opening in a narrow space and space savings, guillotine is the right choice; if you need horizontal sliding on a wide straight opening, sliding glass is the right choice.
Guillotine glass installation consists of survey and measurement, production according to façade dimensions, and precise installation stages. The most critical points are leveling the side rails to the millimeter, the correct slope for water drainage, and ensuring gasket-brush integrity. The correct adjustment of the gas-piston balance mechanism ensures that the panels remain at the desired height and can be operated with one hand. Incorrect leveling or a gasket gap will show up as water leakage at the first rain. Experienced installation guarantees that guillotine glass remains smooth and watertight for years.
Guillotine glass maintenance is simple: cleaning dust from the side rails and wheels once or twice a year, checking the gaskets, and regularly cleaning the glass are enough. In standard guillotine glass, outside access is required to clean the outer surface, while in the wipe-clean model the top panel is tilted inward so the outer surface can also be cleaned from inside. Removing dust and sand accumulated in the rails preserves smooth operation. Replacing worn gaskets and brushes maintains sealing.
Guillotine glass price varies depending on the total façade dimensions, number of panels, glass type (single/double), profile and mechanism quality, and whether it is wipe-clean. Double glazing and the wipe-clean model increase the cost but provide insulation and easier cleaning. Choosing a high-quality gas piston and mechanism raises the initial cost but prevents malfunctions and strain in the long run. The right choice is made according to the façade's usage frequency and climate conditions. A clear price is given after a free survey.
Single glass serves as a wind and dust barrier; if heat and sound insulation are your priority, the double-glazing option makes a significant difference. Double glazing reduces heat transfer thanks to the gas gap between the two panes, lowers the risk of condensation (fogging), and blocks outside noise. This means savings in heating in winter and cooling energy in summer. With the right insulation choice, guillotine glass is not just an opening and closing façade, but also a building component that provides energy comfort.
Safety in guillotine glass starts with tempered glass; tempered glass resists impact and, when broken, separates into small, non-sharp pieces. The gas-piston balance mechanism is designed to prevent the panel from suddenly dropping. In everyday use, guillotine glass turns the balcony into a safe area for children and pets, reduces dust and noise from outside, and prevents insects from entering. Its one-hand operation provides great convenience in daily use. In this respect, guillotine glass offers not only flexibility but also a safe and healthy living space.
Guillotine glass highlights the glass and makes the space look larger with slim profile choices; frameless solutions give an almost invisible barrier feel. Profile color is selected from the RAL catalog to match the building's joinery, pergola, or façade system; anthracite, matte black, and white are the most preferred. Privacy level can be adjusted with transparent, smoked, or frosted glass options. The right color and glass choice make guillotine glass both a functional and aesthetic façade element.
Guillotine glass comes standard with aluminum profile, tempered glass panels, gas-piston balance mechanism, and EPDM gasket-brush system. Options: double glazing (insulated glass); wipe-clean top panel; smoked or frosted glass; slim-framed/frameless design; locking system; custom RAL-colored profile; integration with a pergola or glass roof at the top. These options allow guillotine glass to be tailored into an insulated, easy-to-clean, and fully enclosed outdoor room solution. The hardware choice is determined during the survey based on the façade's use.
Guillotine glass meets different needs with the same façade throughout the four seasons. In spring and autumn, the panels are kept at mid-height to provide both fresh air and wind protection. In summer, the panels are fully slid up to open the façade and turn the area into a spacious terrace; in the evening coolness, they are lowered to keep insects and wind outside. In winter, when the system is fully closed and combined with a heater, a comfortable seating area is obtained even if it is cold outside. In rainy and stormy weather, the glass protects furniture and the floor from getting wet. This flexibility makes guillotine glass an investment that creates value all year round; this variety of use is especially a great comfort in narrow balconies.
For cafés and restaurants, guillotine glass is a practical solution that opens outdoor areas to service all four seasons even on narrow façades. Since it does not require sideways opening, the façade is enclosed without extending onto the sidewalk or pedestrian passage; this is a major advantage for businesses on narrow street façades. In good weather, the panels slide up to create a spacious terrace; in bad weather, they are lowered to obtain a wind-free and heatable indoor area. This makes it possible to serve customers in winter and prevent table loss in the rain. The wipe-clean version of the glass reduces operating costs with easier cleaning on upper-floor business façades. Guillotine glass is one of the solutions that most efficiently increase capacity and season length on narrow commercial façades.
Frequently Asked Questions
Does guillotine glass take up space?
No, because it slides upward vertically, it does not require side space; it is the most practical solution for narrow balconies and terraces.
Can guillotine glass be opened with one hand?
Yes, thanks to the gas-piston balance mechanism, even heavy panels can be opened and closed effortlessly with one hand.
How is the outer surface cleaned?
In the wipe-clean guillotine model, the top panel is tilted inward so the outer surface can also be safely cleaned from inside.
Do the glasses fog up in winter?
Single glass may fog up due to humidity differences; the double-glazing option and ventilation significantly reduce this.
Can guillotine glass be used together with a pergola?
Yes, by fully enclosing the area with a pergola or glass roof at the top and guillotine glass on the sides, a protected outdoor room used in all four seasons is obtained; all components are designed in the same color and line to provide an integrated look.
Request a free survey and expert evaluation, with price, glass, and color options specific to your façade measurements for guillotine glass.
