GEOTEC work with energy distribution providers and their contract partners to carry out full underground mapping and topographical surveys, as well as marking our surveys within substation environments as well as in public roadways and footpaths.

In addition, the teams also have relevant water safety passports and EUSR water hygiene cards to allow them to work at a range of water treatment sites.

They hold the necessary Achilles UVDB & Verify accreditation to allow staff to work in this sector.

As an accredited RISQS certified supplier, Geotec PTS certified survey teams assist their railway contractor clients in providing underground mapping surveys within trackside and non-trackside environments.

This includes surveying station platforms, subways, car parks and other areas around and within station buildings, primarily providing PAS 128 & utility mapping GPR Surveys. Much of the work within this sector takes place outside traditional working hours - at weekends and at night.

Geotec have vast experience in completing surveys within roads and footpaths for city centre, urban and rural environments. The teams hold NRSWA Streetworks certification and also work with traffic management partners to gain permissions and approvals to work safely within active highway environments using Geotecs own or external traffic management measures.

Much of this work takes place out of hours, usually during the night so to not disrupt local residents, commuters, retail and other stakeholders. They also have the option to use a vehicle mounted GPR system, where appropriate.

GEOTEC Surveys also support local authorities & councils in providing PAS 128, utility mapping & topographical surveys for a range of projects in varying locations including housing estates, care homes, recreation grounds & parks, city centres, council offices and highways environments.

Hospitals, schools and universities can often comprise of older sites, which have been built up over the years, making these complex to survey. They have familiarity in completing full surveys over entire campuses as well as surveying smaller piecemeal areas on and as and when basis. Working closely when required with the estates departments to identify the best times to survey these sites (especially when working near A&E departments), whilst they can also have additional services, not usually found in other environments, such as steam, oxygen and large service trenches.

Geotec assist housing developer clients, usually in scenarios where they need to know where utilities and services are located adjacent to their site, to aid designing their connections into them. A full utility survey is usually required when developing a brownfield site such as previous industrial estates, petrol station sites and other such locations.

Geotec carry out numerous smaller surveys for telecommunications clients wishing to make use of existing infrastructure such as phone mast sites, around existing telecoms cabinets and where new buried infrastructure is required. Geotec can complete several sites a day depending on the localities of each one.

Geotec work both landside and airside at a number of airports, carrying out full underground mapping surveys for buried services and utilities, most notably at London City and Luton Airports. They have also completed Vehicle-Mounted GPR Surveys to detect voiding and unconsolidated ground beneath runways and other areas of hard standing.

Geotec have assisted a number of clients at Heathrow within hangar and fire station locations, where and when required, providing PAS 128 surveys in line with their specific CAD standards and survey protocols.

Geotec support clients installing new buried services infrastructure across former and existing barracks sites and have surveyed whole former MOD sites prior to their release for housing. Undertaken a large survey at a local MOD site detecting & mapping buried services and utilities, as well as old building lines to assist the demolition contractor.

These sites have a variety of high-value infrastructure running through them and prior to breaking ground, it is imperative to understand the location, depths and types of buried services within the survey area. A client Geotec supported as part of a large survey informed us that we helped them avoid a data cable responsible for the transfer of millions of pounds per minute.

These are complex sites with a higher density of buried services and utilities than usual, where a high specification survey is required.

GEOTEC Industries

  • Energy & utility sector
  • Railway
  • Highways
  • Public Sector, NHS & Education
  • Housing
  • Telecommunications
  • Airports
  • M.O.D
  • Data Centres, Business Park and Industrial Estates

Ready to get started?

London Borough Lambeth

GEOTEC Surveys worked with London Borough of Lambeth to provide a PAS128 Underground Utility Mapping and GPR Survey outside Waterloo Station to support the design of a footway buildout and installation of a Copenhagen style crossing in Mepham Street.

Portsmouth Water

GEOTEC Surveys supported Portsmouth Water in providing a 3D PAS 128 Underground Mapping & GPR Survey for the proposed reservoir pipeline route over 3.8km in 2020.

Pembrokeshire County Council

GEOTEC Surveys Ltd completed 2x comprehensive PAS 128 Surveys over the February Half Term and Easter Holiday Period at Haverfordwest High School & Milford Haven Secondary School in Pembrokeshire.

GEOTEC Case Studies


For an in-depth review of GEOTEC’s most recent underground mapping projects see the case studies that are featured throughout the website.

Alternatively please click the link below to explore the resources section.

Ready to get started?



What's going on?