OSI Building Services in the UK and throughout the world.
 
 
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About OSI Return to the OSI home page
About OrostreamThe company was formed in 1982
and initially focused on the growing market for specialised main-frame computer environments. This work demanded fast-track, multi-disciplined teams experienced in the design and installation of power supplies and climate control in addition to the entire range of internal systems
and finishes.

“OSI now applies this ‘onestop-
shop’ approach to all types of property refurbishment and fitting out. We combine general and specialist skills with in-house
building services resources to
provide an integrated and
reliable high quality service.”

We work throughout the UK and Overseas with all projects supervised by a Director with full decision-making responsibility. OSI is committed to providing a first class service, one where time, quality and overall client satisfaction are our key concerns.
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OSI BUILDING SUCCESS 

 

OSI offers an effective, accessible and reliable service to a wide range
of property owners and occupiers:

Living + Workspace

  • Offices, Reception and Common Areas
  • Restaurant, Club and Break-Out Areas
  • High Quality Residential
  • Hotel + Leisure
  • Education
  • Retail
Data Centres + Technical Environments
  • Clean Rooms
  • Switching Centres
  • Computer Rooms
  • Controlled Production Areas

Projects can be delivered as Design Build Solutions or any other type of contract
format.