Stonbury, the water and environment sustainability specialist, is delighted to announce the acquisition of Panton McLeod, the industry-leading advanced inspection and cleaning specialist of public, commercial and industrial water assets.

The addition of the 50-strong Panton McLeod business serves to strengthen Stonbury’s position in the water and environment sectors and builds upon its rich heritage of supporting UK water companies. The acquisition forms a key part of Stonbury’s growth strategy and reinforces its desire to be the market leader in providing sustainable solutions to the water industry and wider water environment.

Founded in 1983 and with recent backing from private equity investor LDC, Stonbury works with UK water companies and environment agencies to deliver low-carbon solutions to maintain, repair and refurbish critical assets, from drinking water provision to wastewater treatment, helping to protect supplies and extend asset lives. Stonbury also delivers nature-based solutions to help clients operate more sustainably and mitigate the impacts of climate change.

Panton McLeod was founded in 1994 with an initial focus on cleaning potable water storage tanks to help water providers meet their regulatory requirements. Service offerings developed from there, with an emphasis on supporting clients to protect, maintain and improve water quality. Today, Panton McLeod specialise in advanced inspection and cleaning of water assets with a range of innovative, cutting-edge technologies and expert solutions for a range of clients across the UK and Ireland. Its 50-strong team will combine with the 350-strong Stonbury team to serve the U.K. water and environment sectors.

Trevor Hoyle, CEO of Stonbury, said, “We are delighted to have brought such a well-respected, technology-enabled business into the Stonbury fold. We thank Jim Panton and his team for choosing us as their partners and wish them all a very warm welcome. Our clients can now look forward to a complete end-to-end solution to their water asset needs across the whole of the UK”.

Jim Panton, MD of Panton McLeod, added, “From the moment discussions with Trevor and Stonbury began about a possible acquisition, there was a clear view of the synergies that existed between the two businesses. We have been on a sustainability focused journey for a number of years and Stonbury’s current position in the water and environment sectors is where we have been aiming to get to for a while and I am delighted that we can now join the Stonbury Group.  

David Bains, Partner and Head of East Midlands and East of England at LDC, said, “The addition of Panton McLeod further enhances Stonbury’s reputation as a leading critical infrastructure services business. It also bolsters the business’ expertise in supporting the water and environment industries to mitigate the impacts of climate change”.

Stonbury was advised by Howes Percival and Browne Jacobson (Legal) and RSM (Finance)

Panton McLeod was advised by N4 Partners LLP and MBM Commercial LLP (Legal) and Douglas Home & Co. (Finance)


Stonbury was founded in 1983 and offers agile, direct delivery solutions to both the water industry and wider water environment. Currently holding close to 30 frameworks, Stonbury works with most of the UK’s water companies as well as the Environment Agency to deliver low carbon solutions across their asset estates.


For almost 30 years Panton McLeod has provided expert guidance and support on specialist inspection and cleaning of critical assets that process, use or distribute water throughout the UK and Ireland. Established in 1994 the company has been dedicated to supporting clients to protect, maintain and improve water quality.


For more details, please contact Iain Weir.