GPR Surveys in Wiltshire | Salisbury, Swindon

What the survey finds

Buried servicesUtilities traced ahead of excavation, drilling and design

Voids and solution featuresSoft spots and cavities in chalk

Buried obstructionsOld foundations and structures on development sites

ConcreteRebar, post-tension cables and slab thickness

ArchaeologyBuried features in a county rich in prehistoric sites

Where we work in Wiltshire

Salisbury, Wilton and Amesbury are a short run up the A36 from our office in West End, typically under an hour. We also work further north in Warminster, Devizes, Trowbridge, Chippenham and Swindon, which is around an hour and a half away. We plan sites further away as full days on site, one site per day.

In 2026 we carried out a combined utility and topographical survey for a contractor near Swindon, giving one drawing of the surface features and the buried services along the route.

What Wiltshire jobs usually involve

utility surveys ahead of excavation, ducting and directional drilling
topographical and utility surveys for housing and commercial schemes
GPR on concrete slabs before cutting, coring or fixing
void and obstruction surveys on brownfield and rural sites

Chalk and clay

Much of south Wiltshire, including Salisbury Plain, is chalk. Dry chalk usually lets GPR reach useful depths, and it can show solution features: hollows and soft pipes where the chalk has dissolved. These can matter for foundations and drainage. In the north and west of the county, clays are more common. Wet clay absorbs the signal and reduces depth, so we tell you what to expect when we quote, and the report states what depth was achieved.

Heritage sites

Wiltshire has some of the densest prehistoric archaeology in Britain. Where a site has heritage interest, GPR can map buried features without disturbing them. See our archaeological GPR survey page.

Questions we're asked

Do you cover Swindon?

Yes. Swindon is around an hour and a half from our office. We plan it as a full day on site.

Can you do the utility and topographical survey together?

Yes. One team covers both in the same visit, and you receive a single CAD drawing with the surface features and buried services in the same coordinates.

GPR and utility surveys in Wiltshire