G Stow

G Stow is a specialist borehole engineering and drilling company serving Wallingford, Oxfordshire, and projects across the UK and internationally. Established in 1912, the business combines long-standing water-industry experience with modern drilling, inspection and maintenance capabilities.

Its work covers water-supply boreholes, geothermal and ground-source heating boreholes, feasibility and technical appraisal, hydrogeological and geophysical surveys, test drilling, test pumping, commissioning and distribution. The team also provides borehole maintenance, rehabilitation, relining, CCTV and geophysical logging, pump selection and installation, performance testing, mechanical and electrical engineering, and decommissioning in line with Environment Agency recommendations.

A strong practical focus runs through the service. G Stow operates specialist drilling equipment and offers restricted- and horizontal-access drilling for complex or confined environments. Its Wallingford facilities include storage, fabrication, workshop and pump-testing capabilities, including a test facility for pumps up to 220kW. The company also provides engineering support for pipework, borehole headworks, pumping stations and related infrastructure.

G Stow works with private customers, farmers, hoteliers, water companies, developers and commercial and industrial organisations. Whether you are planning a private water supply, investigating groundwater, developing geothermal heating or maintaining an existing borehole, the team offers support from early feasibility through installation, testing and ongoing asset care.