Earthworks
Certified earthworks and ground preparation services for construction projects across Exeter, Devon and the South West.
Expert Earthworks for Stable, Sustainable Ground Preparation
Proper earthworks lay the foundation for a safe, stable, and successful project.
Every successful project begins with the ground beneath it. At JMJ Groundworks, we deliver precision-driven earthworks that create safe, level, and load-bearing platforms – ready for construction. From clearing and shaping land to managing groundwater and verifying compaction, our team ensures your site is set up for long-term stability and compliance.
Why Choose JMJ Groundworks for Earthworks?
Our earthworks packages combine technical expertise, reliable machinery, and precise execution - laying the groundwork for safe, long-lasting builds.
Technical Expertise
We work closely with geotechnical engineers, interpreting soil reports, borehole logs, and ground investigation data to deliver stable, well-engineered platforms.
Modern Plant and High Quality Materials
From laser-guided graders to tracked excavators and vibrating rollers, our fleet ensures efficient, accurate results, whether it’s bulk excavation, cut and fill, or compaction.
Verified Ground Conditions
All works are backed by on-site testing, including CBR and Proctor tests, to confirm compaction and suitability before construction begins.
QHSE-Driven Approach
Every earthworks package follows a detailed Health & Safety plan, with method statements, toolbox talks, and environmental safeguards like dust control and water run-off management.
What we offer
We carry out all aspects of earthworks, from site strip and level to excavation, compaction, and ground improvement, tailored to your site conditions and project requirements.
Site Clearance & Demolition
Vegetation removal, tree stumps, and demolition of existing structures – ensuring a clean slate.
Cut & Fill Operations
Balancing on-site material by cutting high points and filling low areas to create level building platforms.
Mass Excavation
Trenching for utilities, deep excavation for basements or attenuation tanks, and stockpiling or muck-away services.
Compaction & Testing
Compaction to specified densities using rollers, plate compactors, and rammers, with CBR and Proctor tests to verify structural integrity.
Dewatering & Soil Stabilisation
Installation of temporary pumps, wellpoints, or drainage blankets to manage water ingress, plus additives or geo-grids to strengthen poor soils.
Need groundworks in Exeter and Devon?
Whether you’re managing a multi-phase development or a one-off infrastructure upgrade, we’re ready to help.