Modern design. quality manufacturing.

WI Building Services is a Melbourne-based company that designs, manufactures, and installs modular and prefabricated buildings. Operating out of our two Craigieburn factories in Melbourne’s north, we manufacture for clients in local councils, industry, construction, and commercial businesses all over Victoria.

Why build modular

Modular buildings are manufactured in a factory and then transported and installed at their final location. Because the factory is a controlled environment, modular builds are quicker and cheaper than regular masonry, while still offering the same quality and flexibility in design. The efficient construction process means there’s less waste and less environmental impact, and the factory where the construction takes place can be better controlled for safety hazards, so everyone wins.


We provide end-to-end support throughout the lifespan of the project and offer a holistic view to construction. Our goal is to make the project as easy as possible for you, so you can get back to doing business as usual. This means we cover:

  • Design and drafting
  • Offsite manufacture
  • Site preparation
  • Additions to existing buildings
  • Transport to site/client
  • Installation of the building on site
  • Handover to client

Our suppliers

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