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About SSI Services


SSI Services: Improving the quality and efficiency of essential infrastructure.

SSI Services is the specialist contracting arm of South Staffordshire PLC and provides a broad range of specialist contracting services from design through installation, testing and repair to long term maintenance contracts within an infrastructure environment. The business through our specialist operating companies, serves the public and private sector from water utilities through to Government departments and the Environment Agency, major contractors and FM companies and works across the water, wastewater, water hygiene, rail, construction, highways, energy, petro-chemical and local authority markets. The business employs some 1,400 staff and operates out of 24 depots across the UK and runs a fleet of over 900 specialist vehicles.

SSI Services operates across five core sectors providing a range of value added services including:


Clean Water Services:

  • IWS - Providing a specialist M&E service in all aspects of clean water pump repair, maintenance and project management as well as pipeline services repairing and maintaining clean water networks.
  • Hydrosave - Clean water leakage detection and pipe condition assessment in order to maximise the asset life and functionality of the network

Waste Water Services

  • OnSite Utility Services - A UK leading provider of sewerage services where technology and innovation sit at the heart of product and service development from jetting through to flow monitoring systems.
  • OnSite Pipe Lining - A specialist pipe repair and maintenance company where the provision of specialist linings can extend the life and capabilities of waste water systems.

Industrial Services

  • OnSite Specialist Maintenance - A specialist in maintaining and refurbishing infrastructure with a focus on concrete repair, waterproofing, chemical resistant linings and condition surveys.
  • Perco - A leading provider of wastewater micro-tunnelling, directional drilling and augerboring/pipe bursting services.

Lightning Protection and Electrical Earthing Services

  • Omega Red - A national supplier of electrical and earthing services from design through to installation and on-going testing and maintenance as well as height safety.

Water Hygiene Services

  • IWS - A leading supplier of legionella control services, risk assessment and remedial works across the public and private sector.

Structual repairs for infrastructure

  • OnSite Specialist Maintenance - A market leader in concrete repairs, waterproofing and leak sealing, chemical resistant linings and ground stabilisation for the industrial and infrastructure sectors.

SSI Services is committed to providing market leading specialist services in a highly regulated environment, managing clients risk by developing long term relationships with our diverse customer base.

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