Retaining Walls & Block and Beam Works
Changes in ground level, suspended floor systems and structural alterations often require more than straightforward excavation. The supporting groundworks must be constructed accurately so that the finished structure follows the project design and provides a dependable base for the work that follows.
CJ Groundworks provides retaining wall and block and beam works for domestic, commercial and industrial projects across Sussex, East Sussex, Surrey and Kent. Our experienced team can undertake excavation, concrete preparation, retaining structures, block and beam flooring and associated groundworks in accordance with supplied drawings and specifications.
For structural retaining walls and other load-bearing work, construction must follow the appropriate engineered design. CJ Groundworks can complete the agreed works from supplied drawings and coordinate with the project’s structural engineer or Building Control where required.
/ Our Services
Retaining Wall & Block and Beam Groundworks
Retaining walls and suspended floors are used in a wide range of construction situations, but the groundwork beneath them must suit the particular design and site conditions.
Some projects involve retaining soil where ground levels change. Others require preparation for a suspended block and beam floor, additional drainage beneath the floor or structural concrete associated with remedial work.
Depending on the project design, our work can include excavation, reinforced concrete, masonry construction, floor preparation and supporting structural groundworks.
Retaining Wall Excavation & Bases
A retaining wall depends on the ground preparation beneath it as much as the visible structure above ground.
CJ Groundworks can carry out excavation and base preparation for retaining walls in accordance with the supplied design. This can include removing material to the required dimensions, preparing formation levels and constructing the specified concrete base.
Accurate excavation helps ensure that the wall is positioned at the correct level and that the foundation or base corresponds with the design being used.
Where the retaining structure forms part of a wider construction project, this work can also be coordinated with surrounding groundworks, drainage and site preparation.
Reinforced Concrete Retaining Walls
Reinforced concrete may be specified where a retaining structure needs to resist significant loads or where the project design calls for a structural concrete solution.
CJ Groundworks can undertake the excavation and concrete works required for reinforced concrete retaining structures where suitable drawings and specifications have been provided.
The exact arrangement will depend on the engineered design, including factors such as the dimensions of the wall, reinforcement requirements, foundation construction and surrounding levels.
Rather than applying a standard solution to every site, structural retaining work should be completed according to the requirements identified for the individual project.
Masonry Retaining Walls
Masonry retaining walls can be incorporated into construction and landscaping projects where the specified design uses blockwork or other masonry construction.
The supporting base, wall construction and surrounding groundworks need to work together. This is particularly important where a wall is retaining a meaningful difference in ground level rather than serving as a purely decorative garden feature.
CJ Groundworks can complete the agreed groundwork and masonry retaining wall construction from supplied plans, including excavation and foundation preparation where included within the project.
Timber Retaining Features
Timber retaining features may be suitable for certain landscaping applications where the loads and project design allow them to be used.
They can provide a practical way of managing smaller changes in level within gardens and landscaped areas, but suitability depends on the intended use and the conditions on site.
Where timber retaining features form part of the agreed design, CJ Groundworks can undertake the associated excavation and ground preparation required for their installation.
Structural or heavily loaded retaining applications should instead follow the solution specified by the relevant designer or engineer.
Ground Preparation for Block and Beam Floors
Block and beam flooring creates a suspended floor rather than relying on a conventional ground-bearing slab.
Before the floor system can be installed, the area beneath it needs to be excavated and prepared in accordance with the construction design.
CJ Groundworks can undertake the supporting ground preparation for block and beam floors, including excavation to the required levels and associated structural groundwork.
Careful preparation at this stage helps ensure there is sufficient space beneath the floor system for the specified construction, drainage and ventilation arrangements.
Block and Beam Floor Installation
Where included within the project, CJ Groundworks can install block and beam flooring systems following the specified layout and construction information.
Precast beams and infill blocks form the suspended floor structure, with the precise system determined by the design for the building.
Installation needs to correspond with the supporting walls, foundations, floor levels and any specified openings or service requirements.
Because block and beam floors form part of the wider structure, accurate groundwork before installation is essential. Errors in excavation or supporting levels can create problems when the floor system is introduced later.
Sub-Floor Drainage & Ventilation Preparation
Suspended floors can require provision for drainage and ventilation beneath the finished floor.
CJ Groundworks can prepare these elements as part of the wider groundwork package where they are shown within the project information.
Planning drainage routes and ventilation requirements before the floor is installed can reduce the need for disruptive alterations later.
Where a project also requires foul water, surface water or other drainage works, CJ Groundworks provides wider drainage services that can be coordinated with the structural groundwork.
Structural Excavation & Concrete Works
Remedial and structural projects can require excavation and concrete work that falls outside standard foundation construction.
Where appropriate drawings and specifications are supplied, CJ Groundworks can undertake structural excavation and associated concrete work as part of a remedial project.
The scope will depend on the specified solution and the existing structure. Where the work is load-bearing, including underpinning or structural retaining work, the construction must follow the relevant engineered design.
/Planning
Retaining Walls for Sloping & Split-Level Sites
Not every building plot or garden provides a naturally level construction area.
Where the site rises or falls, a retaining structure may be required to manage the difference between adjoining ground levels. This can be relevant when constructing extensions, creating usable areas around buildings or preparing sites where different finished levels are required.
The appropriate retaining solution depends on the project rather than simply the height of the visible wall.
Factors identified within the design may include:
- The difference between ground levels
- Loads behind or above the wall
- Ground conditions
- Adjacent structures
- Drainage requirements
- Available construction space
- The proposed materials and wall design
For substantial retaining structures, these factors need to be addressed through the appropriate structural design rather than determined during excavation.
CJ Groundworks can then construct the agreed groundwork and retaining structure from the supplied information.
/Planning
Block and Beam Floors for Construction Projects
Block and beam systems are commonly used where a suspended ground floor has been specified as part of a building design.
Unlike a concrete slab formed directly over a prepared sub-base, the floor is supported by structural beams spanning between appropriate supporting points.
This means the groundwork below the floor is different from the preparation required for a standard [concrete base](/concrete-base/).
Excavation levels, supporting construction, service routes, drainage and ventilation all need to be considered before the floor is installed.
Retaining walls and other load-bearing construction should not be treated as generic groundwork.
For structural retaining walls, underpinning and other significant load-bearing work, CJ Groundworks works from the relevant drawings and specifications provided for the project.
These documents establish the required construction rather than leaving structural decisions to be made on site.
Where required, CJ Groundworks can also coordinate the construction work with the project’s engineer or Building Control.
This is particularly important where existing ground or structures are being supported, because unexpected site conditions can influence how the specified work can practically proceed.
/Planning
Working From Structural Drawings
/ Our Mission
Why Choose CJ Groundworks for Retaining Wall Works?
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
Retaining Wall Areas We Cover
CJ Groundworks installs building foundations throughout:
- Cranleigh
- Horsham
- Midhurst
- Petworth
- Pulborough
- All surrounding areas in Sussex, Surrey, and Kent
Request a Retaining Wall Site Visit & Quote
Planning an extension, new home, outbuilding or commercial project?
Call CJ Groundworks on 07881 757877 or send us the site postcode, construction drawings and a brief description of the proposed work.
We will review the available information, discuss access and timescales, arrange a site visit where required and provide a clear quotation for the agreed foundation groundworks.
Where foundation design or further ground investigation is required, we will identify this before the work begins.
/ FAQs
Frequently Asked Questions
A retaining wall supports ground where there is a difference in level between two areas. It may be required on sloping sites, around buildings, within landscaping projects or where construction creates a change in the existing ground profile.
The appropriate wall construction depends on the site and structural requirements.
Structural retaining walls should follow the appropriate engineered design.
The requirement will depend on the nature of the project, but retaining walls carrying significant loads or supporting buildings, highways or substantial ground level differences should not simply be designed during construction.
CJ Groundworks can construct the agreed retaining works from supplied drawings.
Yes. CJ Groundworks can undertake reinforced concrete retaining structures where these are specified within the project design.
This can include excavation, foundation or base preparation, reinforcement-related concrete works and construction in accordance with the supplied specification.
Yes. Masonry retaining walls can be constructed where they form part of the agreed project design.
The appropriate base and wall construction will depend on the required structural arrangement and the levels being retained.
CJ Groundworks can undertake timber retaining features for suitable landscaping applications.
Timber will not be appropriate for every retaining situation, particularly where significant structural loads are involved, so the proposed construction needs to suit the intended application.
/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.
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