The UK’s leading provider of High Voltage power infrastructure services and adoptable utility networks


IUS has an outstanding reputation with our customers, linked to our capability to design, construct, renew and maintain substation assets.

This adds strength to the IUS core business, which is associated with all aspects of substation activity. We are dedicated to delivering your power solutions from Feasibility & Design through to Procurement & Construction leading to Testing & Commissioning and finally Operation & Maintenance.

Our range of services can be applied to public and private electrical distribution systems. Our extensive experience incorporates all types of high voltage switchgear; power transformers; protection and control systems; earthing arrangements; SCADA and remote control; and battery & charger installations. This will include the interconnection of apparatus via the required cables, joints and terminations.

Projects are quoted, managed and delivered by an appropriately trained, authorised and accredited team of professional staff.

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IUS is a turnkey contractor with the capability to survey and design all aspects of substation and feeder route activity, to deliver an optimum solution.

We carry out a range of services for Distribution Network Operators, the Independent Connections market, the Multi Utility housing sector, Renewable Energy, Water Industry, Health authorities, Government institutions, as well as Education establishments, Pharmaceutical, Chemical, Manufacturing and Construction industries. 

High Voltage Customer Service (HVCS) offer comprehensive asset management solutions for systems up to 132kV. These include operation and maintenance agreements and maintenance only agreements. Both are supported by a 24/7 emergency call-out service.

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Our key services

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IUS News

21st Consecutive RoSPA Gold Award
Achilles UVDB Audit
Zero Non-conformances

Clients we work with...