Stonbury are immensely proud to be supporting our clients across the UK at such a crucial time and have been designated as 'key workers' by DEFRA and the UK water utility companies. Our teams are working tirelessly to help secure and maintain drinking water supplies, ensuring clean and safe drinking water is provided without interruption to critical services such as our hospitals as well as the general public. Now more than ever, the safety and wellbeing of our staff is of the utmost importance and we have adapted our safe working practices to ensure social distancing precautions are in place and that the correct hygiene practices are being followed. Safety is our priority, and we endeavour to make sure everyone at Stonbury goes home safe to their family.

Reservoir Safety

Stonbury is pleased to offer a range of services to improve the safety of impounding reservoirs and help clients meet their reservoir safety regime obligations.

Works include the installation, maintenance and refurbishment of a variety of structures associated with impounding reservoirs.

Dams and Walls

Stonbury provide specialist repair, leak-sealing, stabilisation, and modification to a range of structures including, but not restricted to:

  • Concrete, stone, and block dams
  • Earth fill and rockfill embankment dams
  • Retaining walls and perimeter walls
  • Steel components, e.g., weir plates


Spillways require regular inspections and maintenance and therefore Stonbury frequently undertake the following works to ensure their continued safety and functionality.

  • Cleaning and inspection
  • Vegetation removal
  • Repairs to concrete, stone and block structures
  • Stabilisation and improvements to spillway walls and basins
  • Stone works: Replacement, rebedding and repointing

Tunnels and Pipework

Works include specialist repairs and maintenance to structures such as shafts, scour tunnels and draw-off towers and other concrete and steel pipework.

  • Cleaning of sludge, silt and ochre build-up
  • Removal of degraded coatings
  • Concrete repairs
  • Waterproof coating application
  • Steel pipework replacement, refurbishment, and rustproofing
  • Repacking of leaking valves
  • Drainage improvements, manholes and chambers

Access Structures

Stonbury supply new build access structures along with maintenance and refurbishments that ensure the provision of safe and secure access to assets.

  • Vehicular access tracks
  • Steps and walkways
  • Steel, concrete or gravel pathways including non-slip coatings
  • Entrances, gateways and fencing
  • Repair or replacement of steel landings, ladders and handrails
  • Steelwork blasting and painting of handrails and bridges


Installations and works to control erosion and maintain and stabilise embankments include:

• Gabion baskets
• Stone, concrete, and geotextile retaining walls
• Reforming of earth embankments
• Wildlife exclusion, e.g. rabbit netting and artificial badger sets
• Grass cutting

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