Thorne Civil Engineers
In the fast-paced, exacting world of civil engineering, you need a partner you can trust to deliver quality work, consistently and cost-effectively.
CJ Thorne & Co have provided exceptional civil engineering services across the south east since 1939.
From our origins constructing playing fields for local councils, we developed our expertise to specialise in water engineering, infrastructure projects and environmental works. This integration of multiple disciplines enables us to offer a “one stop shop” solution for our clients.
We are proud to be the first choice as principal civil engineering contractor for many high-profile projects. Our clients appreciate the value added by our fully owned plant and vehicle fleet, which we maintain ourselves. This is supported by the consistently excellent, ISO-certified service from our directly employed workforce, both on site and in our offices.
Trusted by
Our projects
Redgate Mill Wastewater Treatment Works
Upgrading existing infrastructure to support the removal of ammonia and improve the quality of treated water discharged into local watercourses.
Horsted Keynes Sewage Treatment Works
Construction of new chemical dosing structures to support the removal of phosphorus from wastewater and prevent its discharge into local watercourses.
Herstmonceux Castle Sewage Treatment Plant
Construction of a new sewage treatment plant at this Grade II listed property, working closely with archaeologists to preserve any historic artefacts uncovered.
Water Bridge Roadworks
Culvert replacement to improve the highway structure, including reconstructing the road to full highway specification.
Gatehouse Bridge
Emergency work to reinstate a failed road bridge, including installing temporary dams, replacement of damaged gabions and installation of steel rail parapet.
Bregsells Lane Embankment Stabilisation
Reconstruction of a 25m embankment either side of the busy A24, including drainage improvements and resurfacing.
Redgate Mill Wastewater Treatment Works
Upgrading existing infrastructure to support the removal of ammonia and improve the quality of treated water discharged into local watercourses.
Horsted Keynes Sewage Treatment Works
Construction of new chemical dosing structures to support the removal of phosphorus from wastewater and prevent its discharge into local watercourses.
Herstmonceux Castle Sewage Treatment Plant
Construction of a new sewage treatment plant at this Grade II listed property, working closely with archaeologists to preserve any historic artefacts uncovered.
Water Bridge Roadworks
Culvert replacement to improve the highway structure, including reconstructing the road to full highway specification.
Gatehouse Bridge
Emergency work to reinstate a failed road bridge, including installing temporary dams, replacement of damaged gabions and installation of steel rail parapet.
Bregsells Lane Embankment Stabilisation
Reconstruction of a 25m embankment either side of the busy A24, including drainage improvements and resurfacing.
What we bring to your project
Our people
Employed workforce with decades of experience, supported by a substantial investment in training and development.
Our plant
Wholly owned plant and transport, maintained in our own workshop, enabling us to work cost-effectively and speedily.
Our compliance
Highest standards in all aspects of HSEQ, emphasised by accreditations and awards, including ISO 9001, ISO 14001 and ISO 45001.
Latest news
Supporting Uckfield with their Christmas Celebrations
Spreading the Christmas cheer by supporting the local town with the yearly Christmas traditions.
Puttenham Lane Subsidence
Construction of a retaining wall after a badger tunnel had undermined the road.
Crazy Lane Culvert Repair
Completed works on the replacement and rerouting of a collapsed culvert under a busy road.
Water Bridge – Cranleigh
Completed installation of a precast concrete culvert & road construction.
Surrey Highways: Bridges & Structures
Progression of bridge repairs using skills from multiple teams.
Supporting Uckfield with their Christmas Celebrations
Spreading the Christmas cheer by supporting the local town with the yearly Christmas traditions.
Puttenham Lane Subsidence
Construction of a retaining wall after a badger tunnel had undermined the road.
Crazy Lane Culvert Repair
Completed works on the replacement and rerouting of a collapsed culvert under a busy road.
Water Bridge – Cranleigh
Completed installation of a precast concrete culvert & road construction.
Surrey Highways: Bridges & Structures
Progression of bridge repairs using skills from multiple teams.