We have a culture that supports the aim of “excellence in everything we do” and client feedback and testimonials are actively encouraged to support the quality process.


Client feedback received confirms ESI average approval ratings over 90% consistently for the last five years. Here are just some of the comments made recently by clients.

ESI have always provided excellent service and responded to our needs quickly and within deadlines. Their reporting is clear and they are able to communicate complex technical material in clear, easily understandable terms.”

Contaminated Land Manager, Regional Borough Council

“There is no other Geotechnical Engineer I trust more than you.”

Ashwin Halaria, Associate, Symmetrys Limited (Consulting Structural Engineers)

ESI has been supporting Severn Trent Water Limited water resources over a period of nearly 15 years (covering three AMPs) with specialist environmental consultancy services. The ESI team has adopted a partnership approach enabling a strong and trustworthy relationship to develop with STW. ESI has successfully delivered complex technical skills to meet the expectations of the Environment Agency and has demonstrated an excellent understanding of, and innovative solutions to the issues facing Severn Trent Water Ltd.”

Andy Banham, Programme Manager, Severn Trent Water

ESI delivered excellent service, they were efficient in their approach quickly understanding my project requirements and providing an effective technical solution. Where required the Project Manager responded to changes in the scope of the project and provided a final report that was clear in covering the issues being faced by my development.”

Anwar, Managing Director, D Form Architecture

ESI came very highly recommended and my decision to use their consultants was clearly the right choice as they quickly understood the complexities of my project’s issues and provided clear pragmatic support from the onset. ESI’s project manager understood the commercial context, communicated effectively throughout and delivered a concise and factual report that met our objectives.”

Chris Loaring, Commercial Manager, Argyll Environmental

ESI Ltd provide excellent customer service and pay attention to the clients requirements and operational issues, truly assisting in helping to resolve challenges faced by Local Councils. ESI offer a tailored solution which, compared to three other local companies, cannot be beaten for customer service, attention to detail and ability to challenge and influence the Council. The price was extremely reasonable and the service was exceptional. Thank you for helping me conclude the contamination issue on my site through a detailed, structured and technical approach, which only a professional, qualified organisation like ESI could provide. Thank You.”

Peter Kandola, Property Developer

I would like to thank all those staff at ESI who have helped to bring a difficult project to a successful conclusion. A site shared between two Local Authorities is never an easy one to tackle, but I think through a combination of good working practices, politeness and excellent communication, you have held it all together.”

Martin Dye, District Officer – Food and Environmental Safety, Wolverhampton City Council

The project manager and the ESI team responded promptly, focused on meeting deadlines within a very tight time frame and immediately grasped and understood what we were trying to achieve and how they could assist.”

Beth Rattigan, CAFOD

I was very pleased with the work that Steve undertook for us. We were in a position where our house sale had fallen through based on misleading survey data. Steve understood our problem straight away and quickly turned around a very detailed report that satisfied our buyer. As a result the sale is now progressing. I found the report to be very comprehensive. It covered the technical and geological data, but was also written in a way that was easy to understand.”

Peter Jones, homeowner from Preston Brook, nr Runcorn

ESI provides good value for money. Their specialised technical capabilities in the field of hydrogeology gives them a competitive advantage over other consultants. My projects are always completed to the highest standards, on time and within the agreed budget. Keep up the good work.”

Tenant Sibanda, CEMEX UK Operations

I have dealt with ESI for many years both as a Regulator reviewing their reports and as a Client employing them to investigate two former gas works sites under Shropshire Council’s Environmental Protection Act 1990 Part IIA responsibilities. ESI have a clear understanding of the difficulties faced by Local Authorities in carrying out their Environmental Protection Act 1990 Part IIA duties and the projects were managed extremely well, within budget, on time and in particular I would like to applaud the professionalism and respect that ESI staff on the ground showed to the residents when working around their properties.

ESI carried out detailed risk assessments in respect of both human health and controlled waters that have resulted in Shropshire Council determining a number of residential properties as statutory contaminated land. Subsequent more targeted sampling of shallow soils to delineate the distribution of contaminants has allowed the human health risk assessment to be updated and support the options appraisals to assist Shropshire Council in identifying the most appropriate remediation strategy. Shropshire Council continues to work with ESI on both projects and would not hesitate to recommend their services to others and will consider them for future schemes.”

Dominic Levy, Contaminated Land Officer, Shropshire County Council

Telford & Wrekin Council commissioned the services of ESI for a detailed Part IIA inspection of a former gasworks. Our experience of ESI is one of professionalism, care and diligence. Works were carried out on time and on budget to our satisfaction.”

Iain Wheeler, Telford & Wrekin District Council

Following a successful relationship in previous AMPs we are confident that this consortium will deliver work to the high standards required by STWL/EA to satisfy the demands of this challenging programme.”

Andy Banham, Programme Manager, Severn Trent Water

The statistical techniques and tools recommended by ESI have greatly increased our certainty in making justifiable decisions about investigation and determination of our contaminated sites. We’re convinced that a statistical approach saves money and produces better organised, more scalable investigations.”

Rob Ivens, Scentific Officer, Mole Valley District Council

The new system provided by ESI is the cost effective solution we required. The system simply does what it says and the Council can now perform its inspection duties systematically through a clear, transparent and auditable process.”

Cathy Reynolds, Contaminated Land Officer, Eden District Council

We wish to thank ESI for their very professional approach to the project which we have been very impressed by.”

RWE npower Plc Property Services

ESI reacted instantly to our emergency requirement and then through to completion. They worked efficiently, professionally and managed the whole contract in the best way possible for our company.”

Lyndon Boydon, Caterpillar UK

I have been very impressed with the competence of the staff I have met on a number of projects. ESI have very good field protocols and high levels of technical expertise. I will be using your services again and you will be my first call.”

Griff Dixon Associates

We cannot speak too highly of the work team. From a householders point of view this was excellent work organised by our District Council.”

Resident’s letter after investigations undertaken by us on behalf of Stroud District Council

The Phase 1 Desk Studies produced for the Council are of a high quality and have enabled this Council to place several successful Capital Grant bids. Subsequent Phase 2 Intrusive Site Investigations undertaken by ESI Ltd have been completed in a professional manner taking full account of land owner requirements and health and safety issues. The Council was constantly updated during works in a clear logical manner leading to successful completion of works with as little disturbance as possible.

Stroud District Council expect to continue working with ESI Ltd in the future and are happy to recommend their services.”

Chris Meakin, Stroud District Council

I have always found ESI Ltd, to be extremely professional, competent, polite and helpful. Projects are completed on time and within budget. It is without hesitation that I can strongly recommend ESI Ltd.”

Paul Lawrie, London Borough of Sutton

I found the service we received from ESI Ltd was faultless, and would have no hesitation in recommending your company to any other Local Authority undertaking Part IIA investigations.My thanks go in particular to yourself for your very patient explanation of the risk assessment procedure, and other such input which could have been considered above and beyond the call of duty.”

Sarah Haines, Portsmouth City Council