Premium UPVC & Aluminium windows

A cross-section of a white UPVC window frame showing multiple chambers, insulation layers, and double-glazed glass panes.

UPVC Windows

Ideal for soundproofing & energy efficiency.

Premium UPVC windows are the ideal solution when the focus is on soundproofing, energy efficiency, and indoor comfort. Thanks to their multi-chamber frame construction and insulated double or triple glazing, they provide excellent thermal insulation and acoustic performance, making them particularly suitable for homes, hotels, and hospitals in busy areas such as Jakarta or Bali. Our German-engineered systems combine durability, low maintenance, and outstanding performance for long-term comfort.

Aluminium Windows

High-End solution for larger openings and higher budgets.

Aluminium windows are the preferred choice for modern architecture that requires slim frames, large glass panels, and elegant design. Their high structural strength allows for expansive window elements that maximize natural light and views while maintaining excellent stability.

Premium aluminium systems are ideal for luxury homes, villas, and contemporary commercial buildings where aesthetics, durability, and minimalistic design play a central role.

A diagram of a black-framed window with 11 parts labelled by blue numbered circles, showing the window frame, glass panes, handle, and hinges. The window is open towards the viewer.

Window components

Our windows come fully assembled from Europe, including the following parts:

Frame (jamb)
Window sash (Leaf)
Window handle
Glazing unit (Glass)
Multilocking Hardware
Bottom Hinge
Scissor hinge (Tilt)
Strike plates
Muntins (French Profiles)
Gasket
Glazing bead

Tilt&Turn window functions:

Tilt&Turn window - open (for cleaning and fresh air)

Tilt & Turn system

German Windows typically open to the inside! The Tilt&Turn system offers versatility and functionality, making it a popular choice for all homes.

Outside opening windows are also available!

Versatile operation allows for both inward tilting and side-swinging, offering customizable ventilation options to suit various preferences.
Enhanced security features, including a multi-point locking mechanism, provide peace of mind against intruders.
Excellent thermal performance contributes to improved energy efficiency by minimizing heat loss and drafts.
Easy cleaning and maintenance, along with a space-saving design, make tilt & turn windows a practical and convenient choice for modern homes and buildings.

Window Knowledge Center

Schematic Image of a Multi-Locking window mechanism

Multi-Locking System

Multi-locking systems offer better security by using several locks along the window frame. This makes the window much harder to break into, discouraging intruders and making your home or business safer.
Improved Weather Sealing: Multi-locking systems not only add security but also help seal gaps better, keeping out air and water.
Soundproofing: Multi-locking systems help reduce noise by tightly sealing the window frame. This keeps outside noise out, making indoor spaces quieter for relaxing, working, or sleeping. These systems also stop windows from shaking in strong winds.

Soundproof Windows

We offer a wide range of Soundproof / Sound reduction (SR) windows and doors.Outside opening windows are also available!

Soundproof Windows

Tilt&Turn

The most popular opening type:

Open to the inside in two ways!

*The sideways triangle indicates the swing opening: hinges are on the left, handle is on the right (window opens to the left, inside).

*The upwards triangle indicates the tilt function: hinges on the bottom and window opens on top to the inside.

Turn (Swing)

Typically opens to the inside!

Outwards opening windows are marked with the words ‘outward’ or ‘casement window’.

*The triangle indicates the swing opening: hinges are on the left, handle is on the right (window opens to the left, inside).

Tilt

A common opening type for small windows. Opens to the inside.

*The triangle indicates the tilt opening: hinges are on the bottom, handle is on the top (window opens to the top to the inside).*The arrow indicates the sliding direction.