Professional groundworks services for residential and commercial projects across Cambridge, Cambridgeshire & East Anglia. Foundations, drainage, site preparation and more. Fully insured. ISO 9001 certified.
GCS Contractors Ltd is a leading groundworks contractor based in Cambridge, delivering high-quality groundwork services for house builders, developers, main contractors, architects and private clients across Cambridgeshire and East Anglia. With ISO 9001:2015 certification and CHAS Elite accreditation, we bring professionalism, safety and reliability to every project.
From single residential extensions to large-scale housing developments, our experienced team handles every aspect of groundworks — from initial site preparation through to completed foundations, drainage and external works. We work to programme, communicate clearly and deliver on our commitments.
We construct all types of foundations including strip foundations, trench fill foundations, raft foundations and pad foundations. Our team works to structural engineer specifications and building control requirements, ensuring every foundation is built to the correct depth, width and specification. For detailed information, see our dedicated foundations service page.
Complete below-ground drainage installation including foul drainage, surface water drainage, soakaways, attenuation tanks and connections to existing sewers. We install drainage to Building Regulations Part H standards and carry out CCTV surveys and air testing to verify compliance.
Professional site preparation including vegetation clearance, topsoil stripping, reduced level excavation and formation preparation. We use GPS-guided machinery for accurate cut-and-fill operations. For comprehensive site clearance, see our site clearance services.
All types of concrete works including ground-bearing slabs, suspended slabs, oversite concrete, paths, patios, crossovers and retaining walls. We place, level and finish concrete to specification using both traditional and power-float methods.
Supply and installation of block and beam floor systems for new builds and extensions. Block and beam floors provide excellent thermal performance and are faster to install than traditional concrete oversite.
Hard and soft landscaping, driveways, car parks, kerbing, paving, fencing and retaining walls. We complete the external works that finish a project to a high standard, ready for handover.
We provide groundworks services across Cambridge, Ely, Newmarket, Huntingdon, St Neots, Royston, Saffron Walden, Peterborough, Bury St Edmunds and all of Cambridgeshire and East Anglia. We also take on projects across the wider UK.
A typical house extension requires site preparation, foundation excavation and construction (usually trench fill), below-ground drainage, concrete oversite or block and beam floor, and connection to existing services. We handle all of this as a complete package.
Costs depend on scope, ground conditions and site access. As a rough guide, groundworks for a single-storey extension might cost £8,000–£15,000, while a new build could range from £25,000–£60,000+. Contact us for a free, no-obligation quote.
Yes. We coordinate with building control inspectors throughout the groundworks phase, ensuring all required inspections (foundation depth, drainage, concrete) are booked and passed before proceeding.
We cover all of Cambridge, Cambridgeshire and East Anglia including Ely, Newmarket, Huntingdon, St Neots, Royston, Saffron Walden, Peterborough and Bury St Edmunds.
Contact GCS Contractors Ltd today for a free, no-obligation quote on your groundworks project in Cambridge.