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 7 regional businesses (Northern, North West, Central, Southern, Thames, South West & Exeter) excel in the construction of new-build infrastructure, estate completion works and legacy adoption projects.


Over the last 16 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 16 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

  • High Value Sewer Adoption Works, Daventry
    Adoptions Work, Daventry
  • Construction of Footbridge, Ealing
    Grand Union Canal Footbridge
  • David Wilson Homes – Woodland Park, Oswestry
    Woodland Park, Oswestry
  • Taylor Wimpey – The Broadlands Bridgend Section 104
    Broadlands Bridgend
  • Durham County Council Legacy Highway Adoption
    Durham County Council Legacy Highway Adoption
  • Apartment Basement Bike Storage
    Portfolio No Image
  • Underground Car Park Repairs
    Underground Car Park Repairs
  • Larkhill Road, Somerset
    Larkhill Road, Somerset