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Onstruction offers a professional service to install custom-measured door and windows for all kinds of houses, apartments and offices. We are experienced with impact-resistant and non-impact vinyl or aluminium, fire-resistant as well as wooden doors windows that encompass a wide variety of styles and performance.

Many customers when seek to purchase new windows, always face a headache with confusion among too many brands, measurements, and we can help in selecting the right door and window. Onstruction is experienced with both the interior doors, exterior doors as exteriors bring challenge given the type of materials an exterior is reinforced with are quite different to the interior doors.

In all windows and doors installation, taking measurements is an important and essential step to get the job right and bang on. It is not a hard job, but the hard part is the get the doors and windows fixed in the right place, and in the first go. With Onstruction, we have electronic measuring techniques, we ensure a quality service.

Choosing a window such as French windows, or window panes is a lot more difficult than you might think. Many stores offer a lot of variety but aesthetics remain a question where it is a house, or an office. There’s a whole maze of window technology and standards to figure out, which majority customers remains unaware of. For your construction or renovation project to succeed, Onstruction always keeps the entire process transparent with the customers and makes them familiarise with window terminology and standards.


Our expertise not just limited to the following window types

  • Double-Hung Windows – a type of window has two sashes that slide vertically up and down in the frame

  • Casement Windows – a hinged windows operate by a turn of a crank in an operating mechanism

  • Awning Windows

  • Picture Windows

  • Slider Windows

  • Stationary Windows

  • Bay or Bow Windows

Referring to doors, our expertise pool cover the following

  • Timber/Wood Doors

  • Battened and Ledged Doors

  • Framed and Panelled Doors

  • Flush Doors

  • Glass Doors

  • Steel Doors

  • Fiberglass Doors/Fiber Reinforced Plastic doors

  • Aluminium Doors