Water Boreholes & Ground Source Heat Pumps in Cornwall
Over 3 projects completed across Cornwall. Free site assessments and no-obligation estimates.
Cornwall sits at the western edge of our coverage. We work selectively across the county on larger commercial and high-value residential projects, drawing on our 25+ years of UK drilling experience to deliver water boreholes and ground source heat pump installations in Cornwall's distinctive geology. For projects with the right scale and complexity, the long mobilisation is part of a deliberate engagement — site assessments are remote-first wherever possible, with drilling crews on site only when the project is fully designed and the EA licence (if required) is in hand.
Services available in Cornwall
Full range of water, ground source and licensing services — delivered by our in-house team.
Water Boreholes
Private water supply for properties in Cornwall's granite and slate geology.
Learn more →Ground Source Heat Pumps
GSHP installations — granite's high thermal conductivity is excellent for closed-loop systems.
Learn more →Servicing & Maintenance
Annual servicing for Cornwall installations — coordinated alongside other South West work.
Learn more →Water Licensing
EA abstraction and discharge licences — UK-wide.
Learn more →Local geology in Cornwall
Cornwall's geology is dominated by Carboniferous to Permian granite batholiths — Carnmenellis, Land's End, Bodmin Moor, St Austell — set within Devonian and Carboniferous slates, mudstones and sandstones (the local "killas"). For water boreholes, granite is a fractured aquifer: yields depend on the fracture network, typically requiring 60-120m to reach productive fissures. Water from granite areas is generally soft, low-mineralisation and slightly acidic — corrosion treatment is sometimes needed. For ground source heat pumps the granite is exceptional — high thermal conductivity, stable temperature, and the rock's strength means borehole walls remain self-supporting. The slate "killas" areas drill more straightforwardly but yields are typically lower. Cornwall's mining heritage means some areas require pre-drilling mine-shaft and mine-water hazard assessment before site selection.
Every site is different. A desk-based geological assessment is always the starting point for any project.
Our projects in Cornwall
4,000+ boreholes drilled across the UK
Our interactive project map loads when it's ready. In the meantime, here's where we've been working — across West Sussex (227 projects), Surrey (196), Hampshire (111), East Sussex (87), Kent (70) and across the wider South of England, including Wiltshire and Dorset.
Water boreholes · Ground source heat pumps · Deep bore soakaways · Over 1,500 completed projects since 2003.
Areas we cover in Cornwall
We cover all of Cornwall including:
Not sure if we cover your area? Complete our enquiry form and we'll confirm.
Ready to discuss your Cornwall project?
Request a free, no-obligation site assessment. We'll review your geology, assess your needs and provide an accurate written estimate.