Cumbria Nuclear Solutions Limited

Delivering Safe Nuclear Decommissioning Solutions at the Forefront of Innovation.    

Cumbria Nuclear Solutions Limited is an alliance of:

  • REACT Engineering Ltd
  • Shepley Engineers Ltd
  • Jacobs Stobbarts Ltd
  • Westinghouse Electric Company
  • Tetra Tech Europe
These companies have a proven track record of excellence in project front end engineering, design, integration and implementation of nuclear decommissioning projects. They work together within an innovative delivery mechanism to provide value for money, accelerated, safe and environmentally friendly clean-up programmes in the nuclear sector. With over 100 years of lead team collective experience across the UK nuclear industry in Tier 1, 2 and 3 contractor organisations, CNSL offer an understanding of the Nuclear Decommissioning Authority environment and firsthand experience of applying commercial and engineering best practices. As a North West team, CNSL is proud to support the local nuclear industry. Its local workforce provides continuity of knowledge and excellent response times to the Client whilst benefiting the local economy.

REACT Engineering Ltd

was established in 1994 to address the nuclear clean-up market and this continues to be its principal business. REACT has established a leading position in developing creative and robust strategic, engineering and management solutions to address the nuclear decommissioning and waste management challenges faced by the UK nuclear industry. REACT contributes front-end design and methodologies, safety case and documentation support to CNSL consortium projects.

Shepley Engineers Ltd

is a wholly owned subsidiary of Renew Holdings plc. Based in Cumbria Shepley engineering is a major multidisciplined contractor and project manager specialising in term contract works predominantly within the nuclear and chemical process plant environments. Shepley contributes mechanical and electrical implementation works, demolition and deplanting and decommissioning activities to CNSL projects.

Jacobs Stobbarts Ltd

is part of Jacobs, one of the world’s largest and most diverse providers of technical professional and construction services. Operating in the U.K. for more than 25 years, Jacobs has worked on every nuclear licensed site in the U.K. and built specialist expertise across the complete nuclear lifecycle. The company has over 8,000 skilled professionals in the U.K., with some 2,000 of these working in the U.K. nuclear sector. are a multidiscipline contractor in the Construction, Repair, Refurbishment, Maintenance, Nuclear and Facilities Management Industries. Stobbarts Key contribution to CNSL projects is includes civil engineering implementation works, infrastructure works, demolition and decommissioning activities.

Tetra Tech Europe

is a leading programme, project management and technical consultancy employing over 1,500 people and operating from more than 50 locations across the UK, Europe, Africa, Asia and the Middle East. We specialise in creating and managing strategic assets for our clients. We engage with them in the early stages of a project, and often continue to advise them throughout its lifecycle. Outside the UK, we have also become a leader in international development, exporting our knowledge and networks to undertake ambitious projects that make a positive impact on infrastructure, socio-economic growth and the environment. Our in-house expertise encompasses seven global sectors: defence & justice, energy & waste, environment, mining & metals, social development and infrastructure, transport, and urban development. We also bring together a network of more than 20,000 partners and associates from around the world. This breadth of skills and knowledge allows us to provide a unique integrated approach to solve complex challenges wherever in the world our clients need us.

Westinghouse Electric Company.

To learn more about Westinghouse Electric Company and our vision to be the first to innovate the next technology, practice or solution that helps our customers generate safer, cleaner, more reliable energy visit

Typical Roles

Front End Characterisation

Civils Isolations (setting up work area); Environmental assessment / BPM; Isolations (setting up work area); Radiological safety assessment; Safety Documentation; Criticality safety assessment; Characterisation methodology; INSA; Sample taking and analysis; Optioneering; Sample interpretation/characterisation; Decommissioning/waste methodologies; Problem identification/definition; Concept design; General safety case support; FEL gate pack preparation

Manufacturing & Installation

Trial and Test rig design; Building services detail design (inc vent); Trial methodologies; C&S Engineering substantiation; Test rig manufacture / construction; Mechanical engineering substantiation; Trial operations; CE&I engineering substantiation; Geo – Environmental engineering; General manufacture Design Solution; Specialist manufacture; Specialist design solution; installation/works; Building services design solution; Civils installation / works detail Design; Testing and commissioning strategy; Specialist detail design; Testing / commissioning;

Project Management

Scheduling; Procurement schedule; Resource planning; Risk analysis; Lifetime plan production; Risk programme; Estimating lead; Delivery of regulatory approvals


Civils C1 to C5 general work; Specialist equipment maintenance; M&E C1 to C5 general work; Scaffolding; Civils manual size reduction; Rigging; Mechanical manual size reduction; Control & supervision of operations; Remote size reduction operations; Mechanical nominated person responsibility; Waste handling; Electrical nominated person responsibility; Waste segregation and packing; RPS responsibility; Health Physics monitoring; Specialist / hazardous material handling; Safety equipment working; Decontamination of plant & equipment; Civils Infrastructure maintenance; Pre demolition strip out; M&E infrastructure maintenance; Civils demolition