Gwel an Mor Lake


With over 40 years of experience in construction and groundwork contracting – we are recognized within the industry for safely delivering excellence in technically challenging and complex groundworks.


  • Bored piling and associated attendances
  • Bulk excavations using in-house fleet
  • Contaminated ground disposal and remediation
  • Cut and fill
  • De-watering in deep excavations
  • Drainage and services
  • Enabling works and hard landscaping
  • External works
  • General earthwork support; temporary and permanent
  • Materials recycling
  • Raft foundations, pile caps, ground beams, trench and pad foundations
  • Silent and traditions driven sheet piling
  • Water stopping and waterproofing
  • Construction of water retaining structures


  • Architectural concrete feature finishes
  • Climbing protective screens
  • In-situ stairs
  • Post-tensioning
  • Pre-cast concrete beams, columns, floors, and walls
  • Ribbed slabs
  • Slip form
  • Top-down construction
  • Quality finishing


  • Base design and construction
  • Silent and vibrationless sheet piling
  • Demolition
  • Façade retention
  • Deep underpinning
  • Temporary works
  • Drainage
  • Reinforced concrete construction
  • Waterproofing
  • Architectural concrete