Geomarine

Geomarine is a Channel Islands civil engineering contractor serving Guernsey, Jersey and wider island projects. Established in 1998, the company combines civil engineering, marine construction, geotechnical work, piling, utilities, drainage, site investigation and consultancy through teams that include civil, geotechnical, environmental and marine engineers.

Its borehole and waterwell work includes drilling for irrigation and private domestic water supplies. Geomarine’s drilling teams work across varied ground conditions, using specialist knowledge and equipment to complete boreholes safely and efficiently. Ground investigation services also cover borehole drilling, in-situ testing, geotechnical sampling and site assessments for construction, infrastructure and environmental projects.

Beyond drilling, the company provides a broad contracting and investigation service, including piling, underpinning, rope access, diving, marine construction, contaminated-land assessment and geotechnical solutions such as anchoring, grouting, rock-fall protection, shoring and sprayed concrete. The in-house engineering and consultancy teams aim to provide practical, coordinated support from early advice and investigation through to delivery.

Geomarine works with both public and private clients, from major and complex schemes to smaller private projects. Its approach emphasises professional delivery, safety, environmental responsibility and quality management, making the business relevant to domestic water-supply customers as well as construction, infrastructure, commercial and environmental project teams.