JLES are a Specialist Adoption Works Contractor who provide Consult and Construct infrastructure packages to developers across the UK.


As specialists in Section 38/278/104 Road and Sewer works, our 9 regional businesses (Scotland, Northern, North West, Central East, Central West, Southern, Thames, South West & Exeter) excel in the construction of new-build infrastructure, estate completion works and legacy adoption projects.


Over the last 18 years, we have established our reputation as dynamic, innovative and results driven companies who put quality, excellence and client satisfaction at the heart of everything we do. We constantly strive to achieve real results for our clients and exceed their expectations every time, making sure that we follow through on our promises of providing complete engineering solutions on a fixed fee, lump sum basis.


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So why choose us?

  • Your site infrastructure and engineering requirements will become the top priority of the development industry’s leading specialists
  • Reduce the strain on your vital internal resources
  • Eradicate client risk from extra work and cost variation
  • Avoid intermittent speculative contractor payments
  • Effectively and quickly achieve bond reductions
  • Receive fortnightly periodic progress updates
  • Benefit from our 18 years company experience and excellent track record
  • Make use of our industry recognised award winning systems and procedures
  • Benefit from our long-term relationships with Local Authorities, Water Authorities and third party private, public and charitable organisations

The Complete Engineering Solution

JLES is a multi-disciplined, technical engineering company offering consultancy services and construction solutions to public and private sector clients across the UK.

Our Services are broken down into 4 main areas of expertise:

Proud of what we do - our rolling statistics


Apprentices Trained


Happy Clients


Projects Completed


Years in Business

Featured Projects

  • Section 278 Adoption – Main Street, Northumberland
  • Post Build Estate Completion – Oxley Park, Milton Keynes
  • Section 278 Adoption – Camp Road, Upper Heyford
  • Post Build Estate Completion – Peugeot Works, Coventry
  • Post Build Estate Completion – Albion Gate, Leyland
  • Post Build Estate Completion – Kidderminster Road, Hagley