Expert Groundwork Services Serving Sussex, Surrey & Kent
At CJ Groundworks, we provide a complete suite of services designed to prepare, develop, and support your building or renovation project. As a trusted groundworks company operating across Sussex, Surrey, and Kent, we serve homeowners, developers, and commercial clients alike.
Whether you need initial site preparation, a reliable foundation system, or a fully compliant drainage solution, we’re ready to break ground with you. Backed by over 35 years of industry experience, all works are completed in-house to the highest standards.
/ Our Services
Our Groundwork Services & Drainage
Building Foundations
- Every structure starts with a strong base. We install:
- Strip foundations
- Trench fill foundations
- Raft foundations
- Pad foundations
- Pile foundations
- Foundation padding
- Our team assesses soil conditions, structural load, and site access to recommend the most appropriate solution — whether for an extension, outbuilding, or commercial unit.
Concrete Bases
- We construct robust concrete bases for sheds, garages and garden rooms. With a Type 2 sub-base, damp-proof membrane, and optional insulation, we guarantee a smooth, level finish tailored to your intended structure.
- Concrete base for shed
- Concrete shed base
- Shed base concrete
Site Preparation & Excavation
- Our groundworks contractors handle full site clearance, excavation and earthmoving:
- Soil grading and levelling
- Ground stabilisation
- Trench and duct installation
- Muck away & waste removal
Drainage Solutions
- We’re more than just a groundworks company — CJ Groundworks is a qualified drainage contractor offering:
- Foul and surface water drainage
- CCTV drain surveys
- Drain jetting
- Soakaways & French drains
- Drain repair
Off-Mains Drainage
Ideal for rural or unconnected sites. Our services include:
Septic tank
installation
Cesspit
installation
Sewage treatment plant systems
/ Our Mission
Why Choose Us for Groundwork Services?
35+ Years of Experience
A long-standing reputation built on expert workmanship.
In-House
Team
No subcontractors; we keep all trades under one roof.
Fully Insured &
Guaranteed
No subcontractors; we keep all trades under one roof.
Compliant &
Certified
All works carried out to UK building regs and environmental standards.
Local
Expertise
Proudly serving Sussex, Surrey & Kent.
/ Our Area
Locations We Cover
CJ Groundworks is based in Barns Green and covers:
- Cranleigh
- Horsham
- Midhurst
- Petworth
- Pulborough
- All surrounding areas in Sussex, Surrey, and Kent
Need Help Choosing
the Right Service?
Every site is different. Call us today on 0788 175 7877 to speak directly with a member of our team.
We’re happy to provide advice, book a site visit, or quote for the work you need.
/ FAQs
Frequently Asked Questions
A groundwork services prepares land for development. This includes excavation, foundation installation, drainage systems, and hard landscaping. We handle both residential and commercial sites from initial dig to final prep.
It depends on the size and complexity of the job. A simple shed base might take a day or two. A full drainage system or foundation package can take a week or more. We'll provide a timeline upfront during the quoting process.
Yes — we work with private homeowners, builders, and developers. Whether it's a garden office or a commercial extension, our services scale to meet your requirements.
Absolutely. All groundwork services are covered by a 2-year workmanship guarantee and relevant manufacturer warranties. We are also fully insured and comply with UK regulations.
Yes — we specialise in off-grid systems like septic tanks, cesspits, and sewage treatment plants. We also provide servicing, replacement and emergency support.
/Our Contact
Ready to break ground?
Get in touch with CJ Groundworks today to discuss your project and receive a free, no-obligation quotation. Our team is here to answer your questions and provide expert advice tailored to your needs.
Address
CJ Groundworks, Lower Batchelors, Emms Lane, Barns Green, West Sussex, RH13 0QH.
/Our Testimonials