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Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    20 Oct 2026

    Creative geotechnical photography

    Inspired by her surroundings at RHS Rosemoor, where she was carrying out the ground investigation for a new educational facility, and with one eye on the Ruddlesden geotechnical site photograph of the year competition, Catherine Greed got creative with her site photography recently, framing the dynamic sampling rig within the last of the summer flowers.

    Creative geotechnical photography

  • Recent projects

    Radon Protection General Requirements

    Although outside the scope of services usually provided, Ruddlesden geotechnical were able to help with a recent enquiry from a private individual. Whilst the details would need to be designed by a suitably qualified engineer, Ruddlesden were able to confirm the general principles of radon protection in ground floor slab construction, with reference to BRE Report BR211 (2023 edition): Radon: Guidance on Protective Measures for New Buildings (including supplementary advice for extensions, conversions and refurbishment projects). All staff are very familiar with this document as, given the company’s location in southwest England, where elevated levels of naturally occurring radon are commonly present, due the underlying geology, almost all geotechnical and contamination reports include a radon assessment.

    BR 211 Radon Protection Measures

  • Recent projects

    Pile Mat Design, Plymouth

    Geogrids were used as part of a pile mat design for a site in Plymouth. Calculations, which were undertaken in accordance with BRE 470: working Platforms for Tracked Plant, showed that a significant reduction in the platform thickness could be achieved if geogrid was incorporated into the platform construction, reducing the temporary works costs. Calculations were carried out for geogrids of varying tensile strength so that cost-benefit analyses could be carried out.