Completed: 2016


With all of our projects, the top priority is to find an economical solution that both meets the client’s needs and meets the requirements of the environment it is to be installed in. This residential property, in particular, was placed right on the coastline, which called for the need of a stainless steel chain to be installed, to prevent corrosion from the sea spray. With this also being a residential property, we wanted to install a window opening solution that was both quiet and concealed from direct sight.

Around the house were multiple isolated high-level windows which required opening. If there is a single opening sash, the most economical and least labour-intensive gearing solution is to install individual chain drives to sashes.

For the project, OWT installed Nekos Kato Stainless steel chain drives. These units are housed within a nylon casing which comes in black, white or grey, to match most joinery colours. However, they can also be powder-coated to match unique joinery colours. This unit is powerful enough to withstand the coastal winds, whilst also being quiet enough to open/close windows discreetly in the quiet of the night.

These units were installed to be operated by a single switch, where at the touch of a button the familiar smell of fresh ocean air can flow into the client’s home. These units can also be installed with a rain sensor, or operated solely by a remote, providing numerous options for operating your windows.


  • Install gearing which can withstand the harsh coastal environments of New Zealand.
  • Provide a discrete solution for opening windows in residential property.
  • Colour matching gearing to minimise the chain drives presence within the softly coloured living space.
  • Install gearing to isolated high-level windows, whilst providing an economical solution for the client.  
  • Coordinating with work performed by other trades to ensure timely installation and conformity with plans and specifications.
  • Scheduling installation to coincide with optimum weather conditions to make installation simple & tidy for both the client and our installers.
  • Provide the highest quality service to reinforce our client relationships and brand reputation.

Want to find out more about your window opening options?


  • Ocean House
  • Waiheke House