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

    29 Sep 2026

    Michelmores 5K 2026

    Earlier this month, Team Ruddlesden had another fun evening with at the Michelmores 5k, which is a great event that raises valuable money and awareness for charity, which was Hospiscare this year. Aftwerwards, in what is becoming a bit of a tradition, it was nice to catch up with our friends at AWP, over a few drinks at the Topsham Brewery.And a special congrats to Ian Curnow from Groundsure, but running for Team Ruddlesden, who won a prize for first veteran!

    Michelmores 5K 2026
    Michelmores 5K 2026
  • Recent projects

    Successful Foul Drainage Tests Facilitate Residential Development in Devon

    It was proposed to construct a foul water drainage field at a proposed residential development site in South Devon. Ruddlesden geotechnical undertook in-situ percolation tests in accordance with Building Regulations drainage and waste disposal Approved Document H. Infiltration rates (percolation values) were provided for use in the design of the drainage field. As there was no mains drainage in the area, if the infiltration rates had been unsuitable for foul drainage, this would have precluded the development of the site.

    40-percolation-testing-bigbury-1
  • 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.