Our team brings extensive knowledge in managing complex projects working with water companies, developers, the public sector and in commercial/industrial sectors to produce cost-effective, technically engineered solutions tailored to each client’s objectives and budget.
We deliver specialist services across water, wastewater, drainage and flood risk, combining civil, structural and environmental engineering expertise. Drawing on our deep regulatory knowledge, we deliver efficient, reliable solutions that keep your projects on track.
We have a strong presence across the UK, successfully delivering projects in a wide range of environments. We understand regional challenges, regulations and opportunities, enabling us to provide solutions that are both effective and sensitive to local needs. No matter your project’s location, our team brings proactive, long-standing expertise and resources to drive your project forward.



















Denbighshire
Amey plc
Bellway
Waterco
Infrastructure
Blu-3 Ltd
Severn Trent
NatHighways
Severn Dee
Dŵr Cymru
Discover how our clients achieve their environmental and engineering objectives with the help of our expert support. With the latest technology and a multi-disciplined team of specialists, our proactive and tailored approach to every project has given us the reputation we pride ourselves on today.
Explore the latest news at Waterco Datrys, featuring project highlights, industry updates and developments across our water consultancy and engineering teams.
What our clients say about us

“Thank you and the team for your works over the last few years. It has been a pleasure working with you and I am sure we will continue to work together on other workstreams.”

“Waterco Datrys’ professionalism, expertise and perseverance have made a real difference, helping us achieve project goals while strengthening trust and confidence within Severn Trent. Their hard work, passion and care are genuinely appreciated.”

“My gratitude goes to Waterco Datrys for the diligent and comprehensive way they supported us undertaking complex flood risk assessment, extensive environment and habitat work, managing consultation workshops and helping us navigate the Authority’s changing adoption procedures.”

“It’s only been achievable by your team’s hard work to deliver us a design in extremely tight deadlines. Huge credit to your team for doing so and providing us with a quality design under these pressures.”

“We have been very impressed with the input Waterco Datrys have had in the short period of time we have worked together on the scheme and definitely plan to continue working alongside yourselves in future schemes.”

“First Class service from a top class consultant. Always looking to go that extra mile with nothing too difficult. Look forward to continuing our working relationship with Waterco Datrys.”
“We have developed a strong and meaningful relationship with Waterco Datrys in order to bring potential residential sites forward using an innovative and pragmatic approach to flooding solutions and sustainable systems that work long term.”

“Always prompt providing quotes and delivering assessments. Updates made in a timely fashion. Always use Waterco Datrys, we wouldn’t go anywhere else.”

“Very happy with the service. Customer-focused, knowledgeable and timely.”

“We are happy with the service we get from Waterco Datrys and will continue to use them as a preferred technical partner”
Waterco Datrys
Waterco Datrys is a leading consultancy in water and environmental engineering, formed in 2024 through the merger of Waterco Consultants and Datrys.
We provide specialist services in water, wastewater, drainage, and flood risk, offering integrated civil, structural, and environmental engineering solutions.
We work with water companies, developers, the public sector and in commercial/ industrial sectors to produce cost-effective, technically engineered solutions tailored to each client’s objectives and budget.
We have a strong presence in North Wales and North West England, with operations across the UK from our head office in Ruthin and offices in Caernarfon and Mold.
Our core capabilities include the design and delivery of water and wastewater infrastructure, developer drainage strategies and flood risk assessments (FRA) with mitigation planning.
We provide hydraulic modelling, sustainable drainage systems (SuDS), catchment management and contingency planning for flood resilience.
Our team also undertakes structural engineering, site investigations and construction support to facilitate end-to-end project delivery.
We embed environmental resilience into every project, from flood risk mitigation to drainage design, ensuring long-term benefits for communities and ecosystems.