GDC Limited

Groundsource Drilling and Contracting Limited, trading as GDC, is a specialist drilling contractor based in Kirkby-in-Ashfield and serving projects throughout the UK. It works with public, private and construction-sector clients, combining drilling expertise with ground investigation, ground-source installation and ground-consolidation work.

Its ground-source division undertakes vertical and horizontal ground-source systems, including borehole drilling, geo-loop installation, grouting, trenching, header connections and thermal response testing. The company also provides water-well drilling, dewatering and pump testing and development, supporting both domestic projects and larger commercial schemes.

GDC’s drilling and grouting work covers rotary-borehole site investigations, coring, treatment of abandoned mine workings and mine entries, bulk grouting, soil nailing, ground anchoring and pre-drilling for piling. Gas and water monitoring is also available, alongside additional services such as lake loops and soakaways.

The business operates a substantial range of drilling rigs and ancillary equipment, including smaller tracked rigs suited to restricted-access sites and larger rigs capable of drilling to around 200 metres. Its stated project experience spans individual dwellings, new builds, universities, social housing and residential, commercial and industrial developments. The company highlights trained drilling and site personnel, formal site-safety qualifications and a professional, reliable approach to challenging ground conditions.