Rail Networks


For many years a significant portion of OnSite’s activities have been within the rail sector; both on or near the track and at a wide variety of property facilities including stations and depots.

Railway contractors

OnSite are specialists in drainage surveying, rehabilitation and installation across all rail infrastructures.  For many years a significant portion of OnSite’s activities have been delivered within the rail sector; both on or near the track. OnSite has a dedicated Rail division based in Heathrow that undertakes works on Network Rail, London Underground and London Overground infrastructure. OnSite also undertakes work on  behalf of a number of tier one contractors. OnSite has extensive capabilities and are able to carry out a variety of drainage-related works.

We are specialists in all types of no-dig technology and have completed a multitude of projects utilising the following:

  • UV lining of track drainage
  • UV lining of culverts up to 1600mm
  • Pipe Reaming
  • Laser guider auger boring
  • Directional drilling 
  • Pipe Jacking

Civils related drainage solutions

  • Deep bore soakaway
  • Catchpit and drainage installation
  • Decommissioning of existing assets

The above project based activities are comprehensively supported by a vastly experienced Project Management Team. Our project management varies from a single task within a wider scheme to complete delivery of the entire project, dependent on our client's needs. Our goal is complete client satisfaction which is achieved through our professional management team, experienced site engineers providing successful delivery of all projects.

rail contractor uk

Trackside asset management: track drainage and catch pits, culverts and tunnel drainage, earthworks’ and land drainage.

Stations and Depots: CET, foul & surface water drainage, oily water drainage, oil interceptors, collector and pumping sumps.

Specialist Services:

  • Railway station surveys
  • Impermeable area studies
  • Drainage area studies
  • Feasibility studies
  • Pumping station surveys
  • Topographic surveys
  • GPS asset surveys
  • Asset tracing
  • Digital mapping (CAD) of underground assets
  • Utility mapping
  • Urban pollution management studies
  • Planned general Inspections (PGI) – rail

In addition to the above services, the rail division is able to call on the extensive capabilities of OnSite’s utilities division for measurement, inspection, relining, drilling and repair services.