Marriott Geotechnical Drilling Ltd

Marriott Geotechnical Drilling provides specialist geotechnical and geo-environmental drilling, coring and ground investigation services from its base near Chesterfield, working across the UK and overseas.

Its work covers open-hole and overburden drilling, conventional and wireline Geobor S coring, and PQ, HQ and NQ systems for mineral exploration. The team supports investigations ranging from conventional ground investigation depths to deeper specialist projects, with high-quality core samples available for technically demanding sites.

In-situ testing is a major part of the service. Capabilities include standard penetration testing, multi-packer and pump testing, High Pressure Dilatometer testing, and downhole installations such as piezometers, inclinometers and extensometers. Where required, clients can also benefit from integrated drilling and testing packages delivered with the wider Marriott Drilling Group.

The company serves diverse sectors including construction, transport, infrastructure, nuclear, quarrying, minerals, mining, tunnelling, renewable energy and environmental projects. Experienced crews are equipped to work safely and efficiently in challenging conditions, making the service suitable for contractors, consultants, infrastructure owners and organisations requiring dependable subsurface investigation.