ABOUT WES

Specialist knowledge. Practical advice. More than 35 years in off-mains drainage.

Ward Environmental Services brings together decades of hands-on experience in surveys, consultancy, system design, installation and complete project delivery across the South of England.

From a straightforward question about an existing septic tank to a complex commercial installation, our approach is the same: understand the site, establish what’s needed and recommend the right way forward.

Talk to the team

OUR STORY

Experience that goes beyond installation

WES was built on practical experience across every stage of off-mains drainage — from product knowledge and system design to installation, compliance and project delivery.

That breadth of experience matters because no two sites are the same. Ground conditions, access, discharge requirements and how a property is used can all affect the right solution.

Today, WES supports homeowners, property professionals, landowners, developers and commercial clients from first assessment through to final handover, with ongoing servicing and maintenance available through EnviroServ.

35+ years

Specialist experience

1,500+

Installations

End to end

Assessment to handover

Meet the team

Mark Ward

Managing Director

Mark has worked in the off-mains drainage sector since 1987, building experience across technical product knowledge, sales, system design, installation and project delivery.

Having been involved in more than 1,500 installations, Mark brings a practical understanding of what works on site as well as the technical knowledge needed to navigate compliance, design and more challenging projects.

That experience continues to shape the WES approach today: look at the whole site, explain the options clearly and deliver a solution that works for the people using it.

Kimberly Ward

Director & Office Manager

Kimberley helps keep WES running smoothly behind the scenes, supporting the team and helping clients throughout the process from initial enquiry onwards.

Nick Parsons

Regional Manager – South East

Nick brings more than 30 years of experience in the off-mains drainage sector, with extensive knowledge across Kent, Sussex, Surrey and Hampshire. He works closely with homeowners, architects, builders and commercial clients, helping establish the right approach for straightforward and more complex drainage projects.

Anne Johnson

Accounts & Office Administrator

Anne supports the day-to-day administration of WES, helping keep projects, accounts and client enquiries moving smoothly.

Will Hadler

Regional Manager

Will supports WES clients and projects across the region, helping coordinate enquiries, site requirements and the practical steps needed to move work forward.

Craig North

Operations Manager

Craig helps oversee the day-to-day delivery of WES projects, coordinating the operational side of the work and helping ensure installations and site activity run smoothly.

WES TODAY

One joined-up approach, with specialist support around it

WES remains focused on specialist surveys, consultancy, system design and installation. Around that core service, the wider business provides a clearer route from initial advice through to long-term system care.

EnviroServ is the aftercare arm of Ward Environmental Services, providing servicing, inspections, repairs and ongoing maintenance for septic tanks, sewage treatment plants and other off-mains drainage systems.

Visit EnviroServ →

In 2026, WES acquired Country Drainage, an established off-mains drainage business with more than 40 years of experience. Together, WES, Country Drainage and EnviroServ provide a joined-up service from consultancy and Compliance Surveys through to installation and ongoing maintenance.

Read the announcement →

Trusted by homeowners, professionals and commercial clients

Every project is different, but the things our clients value tend to be remarkably consistent: clear advice, good communication, careful workmanship and knowing there’s an experienced team managing the job properly.

“I was recommended to WES Ltd by Klargester as their specialist off-mains Accredited Installer for the installation of the Biodisc Sewage Treatment Plant for our development. They turned out to be much more than just an installer, as they were able to completely manage the process, including the application to the Environment Agency to ensure we had the correct discharge permit, and then design the installation to meet the specific criteria. Mark managed the whole project from start to finish of the installation and I would have no hesitation in recommending WES Ltd to anyone. It’s so important to get a professional company who know the rules and regulations to ensure you are fully compliant.”

Sarah Beeny
“Excellent all round, from initial explanation of options, planning to completion of the work. We had a domestic sewage treatment plant and distribution field installed. Special mention to the guys doing all the hard graft – Clayton, Eli & Lewis. Very tidy and left the lawn almost looking untouched. No hesitation in recommending.”

Paul Boyle – Headley, Hampshire
“I want to thank you for installing the three Klargester Biodisc units for us. I would highly recommend Ward Environmental to all friends, family and colleagues. They were professional, neat and tidy and a very competitive price. The staff were polite, efficient and most helpful and the tasks were undertaken speedily with care and attention. Ward Environmental are one of the best contractors I have had the pleasure to work with.”

Matthew Styles-West
Head Gardener, Mill Court Estate
“We are very pleased with our new sewage treatment plant and drainage field, which we share with our neighbour. WES planned, installed and commissioned an innovative drainage solution on time and on budget. They coped admirably with the site’s unusual layout, complicated drainage history and access limitations. We were impressed by their attention to detail, open communication with various interested parties — two sets of homeowners, insurers and loss adjusters — but, above all, their genuine desire to deliver a drainage solution that will serve our needs for years to come. We would not hesitate to recommend Mark and his team.”

Mr D. Naser
“Many thanks for your prompt report. Obviously it is a huge relief to us that the septic tank is in fact compliant, as it was becoming a potential nightmare. As discussed, I will certainly recommend your professional, efficient and objective services to our estate agent, lawyer and friends and family who may face the same problems that we have!”

Nick — Septic Tank Compliance Survey
“WES Ltd undertook the installation of our new Sewage Treatment Plant. We chose WES as Mark provided us with the simplest, least disruptive and clearest solution to our situation, while still being in the same price range as other estimates. Mark took the whole project on for us — we didn’t have to worry about a thing! His team were brilliant: very careful, very well organised and incredibly tidy, with everything neatly stored at the end of the day. They kept us informed throughout and Mark visited regularly to oversee what was going on. We were dreading the disruption but Mark and his team made the whole process as smooth as possible. We can recommend WES Ltd without reservation.”

Paula Montie — Berkshire

Professional standards, backed by experience

WES works with established manufacturers and industry bodies and maintains the specialist knowledge needed to design and deliver off-mains drainage systems safely, responsibly and in line with current requirements.