Welcome to SEP

Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over 30 years, providing vital services, resources and assistance to any project, no matter how large or small. We provide a fully fledged one stop shop service, with each of our specialist services backed by industry-specific experts to ensure that your project runs smoothly from start to finish.

Our Services


Project Management


Buy & Hire Equipment

Technical Services

Rail Services

Insurance Services

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What Sets Us Apart?

Traditionally, a client would select several different suppliers to provide work on certain areas of their project, such as topographical surveys, ground investigation and environmental surveys. This would involve the client speaking to each of these suppliers individually to coordinate all of these activities, which takes up their valuable time and resources.

At SEP, we do things differently. We house eight different departments under one roof, with each one specialising in a different sector of the on-site construction industry. This allows us to offer our clients a fully-fledged, one-stop shop solution to their projects - backed by our industry-specific experts - to ensure that their projects run smoothly from start to finish. The fact that we can offer all the services a project may need under one roof means that it will be completed on spec, on time and on budget.

Call us today on +44 01695 729 835

What We Offer


Our site based workforce of; Site engineers, Senior Engineer, Management or Assistants are at your disposal whatever and wherever your needs; fully equipped, skilled, qualified and carrying the SEP reputation on site, we provide you with a service not just a person. View More


Leading supplier of engineering surveys for construction purpose. Our range of land mapping and utility surveys are fully supported by our own in house CAD team we are your only stop for full site mapping and planning. View Surveys


Professionals in providing experienced construction management support, design, lead or be part of your project management staff in a variety of diverse sectors. View More


We have a full understanding of any pre construction planning and assessments required for any project. Our division to specialise in these often niche surveys includes full ground investigation and many, many more to ensure you have everything you need to stay compliant before and during your build. View more


Authorised Spectra, Nikon & Trimble distributors we not only supply our own staff with equipment but our clients and any company or persons wanting to buy or hire the latest specialist equipment at the best prices possible. View our online store

Some of our amazing clients

Client Testimonials

  • Adana Construction have partnered with SEP exclusively for over 17 years, providing us with expert Engineering, Surveying and Management services on many projects. The reasons why are simple; SEP provide quality Site Engineers and Surveying services with the know-how and capabilities to support us on the delivery of complex Building, Civil, and Infrastructure schemes. Their flexible, one-stop approach means they can always provide an economic service which has never let us down!
    Joe Jassim-Managing Director, Adana Construction
  • Kier Northern have used the Engineering & Surveying expertise of SEP for over 25 years. They provide a professional, responsive, consistent and economic one-stop service. From pre-contract, site investigations and survey reports, to construction phase engineering and quality management, through to as-built information and CCTV surveys at completion. At our recently completed Wythenshawe Transport Interchange project SEP provided excellent support to both our bid and delivery teams.
    Graham Harwood-Senior Bid Manager, Kier Northern.
  • I have personally known and partnered with SEP for over 25 years, throughout which their client focussed service has always met my full expectations. Their Surveying expertise has aided Morgan Sindall during the bid stage of many projects, giving us the leading edge over our competition. And in addition, our Project teams have engaged their Site Engineers & Managers with great success, supporting the delivery of over 200 schemes during this time, projects ranging from £500k to £100m
    Frank Reynolds-Senior Bid Manager, Morgan Sindall Construction & Infrastructure
  • I have used SEP for over 10 years and have always found their Engineers & Surveyors to be reliable and experts in their field. I often recommend them to colleagues and other businesses.
    Jeff Boothroyd-Senior Operations Manager, Morgan Sindall Construction & Infrastructure
  • Finance is all paid off and it's all mine. Big thanks to Neil, Mike and Joe at SEP for their support both with providing a cracking instrument (& technical advice) and helping to arrange the finance. I always used to think of Spectra as the cut-price option but having worked with it for 12 months I prefer it to any Leica or Topcon I've previously used, particularly the laser scanning function and the Genlock.
    Alastair Banks -Banks Engineering & Management
  • Working with SEP from quotation stage through to delivery of their final report has always been handled in a highly professional manner with all timescales maintained as originally promised. They have a reputation in our consultancy practice as a company to whom we can entrust complex projects as they have a full understanding of the brief and are able to adapt to the specific needs of the project in a positive manner. SEP is, accordingly, our survey company of choice.
    Neville Shaw -Integra Consulting Engineers
  • We have worked with SEP for several years and they have become our survey company of choice. SEP’s attitude to projects and production of accurate drawings has always been professional and efficient and the team are a pleasure to work with.
    Sarah Rhodes -SEP Client

We are Certified

A list of certificates accredited to SEP.