RSK Adds to Water Sector Capability with Fluid Sealing & Engineering Acquisition

Mechanical engineering specialist Fluid Sealing & Engineering (FSE) has been acquired by RSK, further enhancing the group’s water sector expertise with the business’s extensive experience in wastewater and water treatment infrastructure. Rotherham-based FSE was established in 1986 and works across the UK for water authorities and other industries.

Water and wastewater treatment infrastructure assets
In the water sector, the business specialises in the supply and installation of integrated mechanical systems encompassing design, off-site fabrication and on-site installation of complex fluid conveyance and pumping infrastructure within live water and wastewater treatment assets. This includes the associated structural and access steelwork that enables FSE to deliver single-package mechanical solutions.

The business operates within various water industry and national specifications – Water Industry Mechanical and Electrical Specifications (WIMES), individual water company specifications and British Standards – and holds a comprehensive suite of industry accreditations, including ISO 9001, Achilles UVDB, UKAS product certification and SSIP Worksafe.

Complex mechanical engineering solutions
FSE Managing Director Lee Sanderson, who will continue to lead the business, said, “Joining the RSK Group marks a pivotal milestone in FSE’s 40-year history. Since our founding in 1986, we have taken great pride in delivering complex mechanical engineering solutions for the UK’s most critical infrastructure, and finding a partner that shares our deep-rooted commitment to safety and long-term client relationships was paramount.

AMP8 cycle investment
“This acquisition comes at a defining moment for the water industry. Now that we are in the AMP8 cycle, the scale of investment required to modernise wastewater and water treatment assets is unprecedented. FSE is now uniquely positioned to meet this demand. With the backing of RSK, we have the enhanced capacity and resources to scale our operations, driving significant growth while continuing to support our core water authority partners and Tier 1 contractors.

“Our mission remains the same: to provide the technical excellence FSE is known for, now with the global strength of RSK behind us.”

Integrated, multidisciplinary RSK Group offering

FSE has a client base that includes Laing O’Rourke, Kier, Tilbury Douglas, JN Bentley, Murphy Group, Alfa Laval, Galliford Try, C2V, Esh Construction and GSE. FSE has also worked with the RSK Group business MWH Treatment.

Water sector clients include Scottish Water, Northumbrian Water, United Utilities, Yorkshire Water, Southern Water, Severn Trent Water, Thames Water, Southwest Water and Jersey Water.

Recent projects delivered by FSE include:

  • Blackburn Wastewater Treatment Works (WwTW) AMP6 upgrade (Laing O’Rourke and United Utilities)
  • Oswestry WwTW AMP7 upgrade (Advance Plus and United Utilities)
  • Beckton Sewage Treatment Works (STW) AMP7 upgrade (Laing O’Rourke and Thames Water)
  • Witches Oak Water Treatment Works AMP7 upgrade (Advance Plus and Severn Trent Water

Upcoming projects will include:

  • Yaddlethorpe STW (Kier and Severn Trent Water)
  • Wanlip STW AMP8 return activated sludge/surplus activated sludge and activated sludge plant (MWH Treatment and Severn Trent Water)
  • Wanlip STW AMP8 tertiary solids removal (Kier and Severn Trent Water)
  • Selset Reservoir (Esh Construction and Northumbrian Water)