Sashless Windows

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Openable Window

Sashless windows are openable windows that do away with bulky aluminium or timber framing around the glass. Instead, individual panes of glass slide effortlessly within tracks vertically or horizontally in numerous configurations. They provide a sleek, expansive look and clean, clear views of fixed windows allowing maximum ventilation.
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Sashless windows in timber Bi-fold door

Sashless Windows

Two Pane Double-Hung Window

Two panes of glass are counterbalanced to each other and therefore move simultaneously in opposite directions. Perfect in locations where you may be able to reach the bottom pane to open and close. Due to the counterbalance nature, the top pane simultaneously opens with the bottom pane to vent hot air out of high void spaces typically out of reach.
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Sashless windows in timber bifold door
Servery Sashless Window
The single moving pane of glass is counterbalanced by weight and can move in either an upwards or downwards direction. One fixed pane of glass is standard, and when the fixed pane is located at the top, it’s commonly used as a servery window. The bottom pane can open and close directly onto the kitchen bench, providing a seamless transition. In reverse, with the fixed panel on the bottom, it’s used as a balustrade for a Romeo/Juliet balcony, leading directly onto a pool and still meeting governing regulations.
Flowmotion Sashless Window
The Flowmotion Window allows two panes of glass to simultaneously move up or down, resulting in beautifully large openings and positioning of the window. It is similar to the servery Sashless, but because two panes slide over one, it can provide more of an opening if required.
Sashless window bathroom
Sashless windows

Doumode Servery/Double Hung Window

The best of both worlds! This window system allows the two moving panes to be moved individually.

Excellent in areas with eave protection, so the top pane can be left opened and locked with little reason to be concerned about rain coming in due to shelter from the overhanging eave.

Or vice versa, the bottom pane can be left open so that your roller blinds can be left partly down for privacy but not flapping in the breeze.

Another Duo Mode feature is meeting fall prevention requirements and still maximising ventilation. The bottom pane needs to be restricted to 100mm opening, and the top pane can be opened to 1700mm from the internal finished floor level.

FAQs

What is a sashless window?

A sashless window consists of two sliding panes of glass that operate without a bulky timber or aluminium frame (sash) around the glass itself, providing an uninterrupted view.

How do sashless windows operate?

They typically slide vertically, similar to a double-hung window, but both panes move simultaneously in a counterbalanced system for smooth operation.

Why choose a sashless window?

They offer a sleek, ultra-modern, minimalist aesthetic with maximum glass area, perfect for framing scenic views without visual interruptions.

Are sashless windows secure?

Yes, they feature specialized, discreet locking mechanisms that secure the panes together when closed.

Can sashless windows be installed into timber frames?

Yes, the sashless glass system can be fitted into a surrounding perimeter frame made of either natural timber or aluminium.

Do they provide good ventilation?

Excellent ventilation. Because you can open the top and bottom simultaneously, they allow hot air to escape high up while drawing cool air in below.

Are sashless windows energy efficient?

Yes, the glass panes overlap and feature subtle weather seals to prevent drafts, and can be manufactured using high-performance Low-E glass.

Can I fit a flyscreen to a sashless window?

Yes, screens can be fitted to the outer perimeter frame without disrupting the clean lines of the sashless glass.

Are they difficult to clean?

Because the glass slides vertically, they are easy to access and clean from the inside of the home.

Where are sashless windows most popular?

They are highly popular in high-end residential renovations, modern bathrooms, and living areas overlooking the water or nature reserves.

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