Services
We deliver an extensive array of groundworks and civil engineering projects from technical deep sewer
connections through to final finishing and landscaping works.
We provide reliable and practical civil engineering and groundworks solutions, supporting projects of all sizes across the South West.
With extensive industry experience, we take a straightforward, hands-on approach to every project, working closely with clients, contractors and other professionals to deliver safe, efficient and cost-effective solutions.
Our capabilities cover a broad range of civil engineering and groundworks services, from site preparation, drainage and earthworks through to infrastructure, foundations and external works. From the initial groundwork through to completion, our focus is always on quality workmanship, effective problem-solving and keeping projects moving.
We understand the importance of working to programme and budget while maintaining high standards of safety and environmental responsibility. Whatever the challenge, our experienced team is committed to finding practical solutions and delivering a dependable service from start to finish.
Experienced commercial groundworks contractors delivering reliable solutions from site preparation through to completion.
We provide professional commercial groundworks services for construction and development projects of all sizes. From initial site clearance and excavation through to foundations, drainage and external works, our experienced team delivers the groundwork needed to keep projects moving safely and efficiently.
Working alongside developers, main contractors and project teams, we provide practical, cost-effective solutions tailored to the requirements of each site. Our commercial groundworks capabilities include site preparation, bulk excavation, foundations, drainage systems, sewer connections, service installations, concrete works and associated infrastructure.
With experience across a wide range of commercial and civil engineering projects, Onyx Civils understands the importance of programme, safety and quality at every stage. Our hands-on approach enables us to respond quickly to site challenges while maintaining consistently high standards of workmanship.
Whether you require a complete commercial groundworks contractor or specialist support for a particular stage of a development, Onyx Civils provides a dependable service focused on getting the job done properly.
Get in touch today.
We provide professional drainage services for commercial, residential and civil engineering projects, delivering practical solutions designed around the requirements of each site.
Our experienced team undertakes the installation of foul and surface water drainage systems, including underground pipework, manholes, attenuation systems, interceptors and connections. From new developments and commercial sites to complex infrastructure projects, we ensure drainage works are completed safely, efficiently and to a high standard.
Working alongside developers, contractors and project teams, we coordinate drainage with wider groundworks and civil engineering packages to help keep projects on programme and minimise disruption on site.
Our drainage services include:
- Foul and surface water drainage
- Underground drainage systems
- Stormwater management
- Manholes and inspection chambers
- Attenuation systems
- Interceptors and storage tanks
- Drainage connections
- Drainage associated with roads, foundations and external works
- Commercial and residential drainage
With an experienced workforce and a straightforward approach, we deliver dependable drainage solutions from initial ground preparation through to completion.
Get in touch today.
Professional sewer connections delivered safely and efficiently. We provide professional sewer connection services for commercial, residential and civil engineering projects, delivering reliable connections to existing foul and surface water sewer networks.
Our experienced team undertakes new sewer connections and drainage infrastructure works, from excavation and pipe installation through to connection, backfilling and reinstatement. We work carefully around existing underground services and infrastructure to ensure every project is completed safely, efficiently and to the required standards.
Working with developers, contractors, utility providers and project teams, we can coordinate sewer connection works as part of a wider groundworks and drainage package, helping to simplify project delivery and keep works on programme.
Our sewer connection services include:
- New foul sewer connections
- Surface water sewer connections
- Sewer and drainage pipe installation
- Manholes and inspection chambers
- Excavation and trench works
- Connections to existing drainage networks
- Drainage diversions and alterations
- Ground reinstatement following connection works
- Sewer connections for commercial and residential developments
With extensive experience in drainage, groundworks and civil engineering, Onyx Civils provides dependable sewer connection solutions from initial excavation through to final reinstatement.
Need a sewer connection for your next project? Contact us to discuss your requirements.
Working with developers, contractors and project teams, we can coordinate treatment plant installation as part of a wider drainage and groundworks package, providing a streamlined solution from initial excavation through to completion.
Our treatment plant services include:
- Sewage treatment plant installation
- Excavation and ground preparation
- Foul drainage connections
- Inlet and outlet pipework
- Treatment plant bases and surrounds
- Associated manholes and inspection chambers
- Drainage and discharge infrastructure
- Backfilling and ground reinstatement
- Treatment plant groundworks for commercial and residential developments
- With extensive experience in drainage, groundworks and civil engineering, Onyx Civils provides dependable sewage treatment plant installation tailored to the requirements of each site.
Planning a project that requires a sewage treatment plant? Contact us to discuss your requirements.
Safe and efficient vacuum excavation hire for civil engineering and groundworks. We provide professional Vac Ex hire and vacuum excavation services for commercial, construction and civil engineering projects. Vacuum excavation offers a safer, more controlled method of excavating around underground utilities, cables, pipework and other sensitive services, helping to reduce the risks associated with traditional mechanical digging.
Our experienced team uses specialist vacuum excavation equipment to remove soil and material with precision, making Vac Ex particularly suitable for congested sites and areas where existing services need to be safely exposed.
From trial holes and service locating to drainage, utilities and larger civil engineering works, our Vac Ex services can be provided independently or as part of a complete groundworks and infrastructure package.
Our Vac Ex services include:
- Vacuum excavation and Vac Ex hire
- Safe excavation around underground utilities
- Trial holes and service exposure
- Utility and cable locating works
- Excavation around gas, water and electrical services
- Drainage and sewer excavation
- Potholing and trench excavation
- Restricted and difficult-access excavation
- Commercial and construction site works
- Support for civil engineering and groundworks projects
- With extensive experience in civil engineering, drainage and groundworks, Onyx Civils provides dependable Vac Ex solutions focused on safety, accuracy and efficient project delivery.
Need Vac Ex hire for your next project? Contact us to discuss your site requirements.
Safe and reliable small contract lifting services for construction and civil engineering projects. We provide professional small contract lift services for construction, groundworks and civil engineering projects, offering a practical solution for lifting and positioning heavy or difficult materials safely on site.
Our experienced team can support a wide range of small lifting operations, helping contractors and project teams safely position materials, equipment and site infrastructure where mechanical lifting is required. Each lift is carefully considered to ensure works are carried out efficiently and with a strong focus on site safety. From drainage components and precast concrete products to construction materials and equipment, our contract lifting services can be provided independently or alongside our wider groundworks, drainage and civil engineering operations.
Our small contract lift services include:
- Small contract lifting operations
- Lifting and positioning construction materials
- Precast concrete and drainage components
- Manholes, chambers and tanks
- Plant and equipment positioning
- Lifting support for drainage installations
- Lifting support for groundworks and utilities
- Construction and civil engineering site lifts
- Restricted-access lifting operations
- Planned lifting solutions for individual site requirements
With extensive experience in groundworks and civil engineering, Onyx Civils provides dependable small contract lifting solutions focused on safety, careful planning and efficient project delivery.
Need lifting support for your next project? Get in touch to discuss your small contract lift requirements.
We provide professional bulk earth moving and earthworks services for commercial developments, construction sites and civil engineering projects. With the experience, workforce and specialist plant required for large-scale groundworks, we can efficiently excavate, move and manage significant volumes of soil and material across a site.
Our experienced team undertakes bulk excavation, cut and fill, site clearance and ground preparation, working to project specifications and site levels to create a stable and accurately prepared platform for the next stage of construction. From initial site preparation through to final grading, our bulk earthworks services can be delivered as a standalone package or integrated with our wider groundworks, drainage and civil engineering services, helping to streamline project delivery and keep works on programme.
Our bulk earth moving services include:
- Bulk excavation and earth moving
- Cut and fill operations
- Site clearance and ground preparation
- Soil stripping and topsoil removal
- Excavation to formation levels
- Material movement and redistribution
- Ground levelling and grading
- Reduced level excavation
- Import and export of suitable materials
- Commercial and construction site earthworks
- Ground preparation for roads, foundations and infrastructure
With extensive experience in groundworks, earthworks and civil engineering, Onyx Civils delivers safe and efficient bulk earth moving solutions tailored to the scale and requirements of each project.
Planning a project requiring bulk excavation or earthworks?get in touch to discuss your requirements.
The final stages of a construction project matter. We deliver commercial landscaping, hard landscaping and external finishing works, taking sites from completed groundworks through to a clean, functional and professionally finished environment.
Our landscaping and finishing capabilities allow us to complete more of the project in-house, reducing the need for multiple contractors and helping developers and principal contractors maintain continuity across the site.
Hard Landscaping & External Works
We undertake a wide range of hard landscaping and external works, including kerbing, edging, paved areas, paths and preparation for finished surfaces. These works can be incorporated into a wider civil engineering package or delivered as the final phase of a development.
Ground Reinstatement & Finishing
Following drainage, utilities, earthworks or other construction activity, we can reinstate and finish affected areas through grading, topsoiling, seeding and general ground preparation.
Our landscaping and finishing services include:
- Hard landscaping
- Kerbing and edging
- Paving and pedestrian areas
- Topsoiling and seeding
- Ground levelling and final grading
- Verge and ground reinstatement
- Paths and access areas
- Surfacing preparation
- Site finishing and tidy-up
- External works for commercial developments
- One Team From Groundworks to Completion
With capabilities spanning civil engineering, drainage, earthworks, groundworks and landscaping, we can take responsibility for multiple stages of a project, providing clients with a more coordinated and efficient service.
Looking for a commercial landscaping or external works contractor? Get in touch to discuss your project.
We deliver heavy foundation and reinforced concrete foundation works for commercial, industrial and civil engineering projects where strength, stability and precision are essential.
From large structural bases to foundations for specialist plant and infrastructure, our team provides the excavation, ground preparation, reinforcement and concrete works required to create robust foundations capable of supporting significant loads.
Foundations Built for Strength & Stability
Heavy foundations often involve challenging ground conditions, substantial excavation and exacting construction requirements. Onyx Civils works closely with contractors, engineers and project teams to ensure foundations are constructed accurately to specification and fully coordinated with surrounding groundworks, drainage and infrastructure.
Our heavy foundation services include:
- Heavy-duty concrete foundations
- Reinforced concrete foundations
- Structural bases and concrete slabs
- Plant and machinery foundations
- Equipment and infrastructure bases
- Deep and large-scale foundation excavation
- Ground preparation and formation
- Reinforcement and concrete works
- Foundation drainage
- Backfilling and reinstatement
- Commercial and industrial foundation works
- Integrated Groundworks & Foundation Solutions
With expertise across civil engineering, excavation, earthworks, drainage and groundworks, we can undertake the wider site preparation associated with heavy foundation construction as well as the foundation works themselves. This integrated approach helps improve coordination on site, reduce reliance on multiple contractors and keep projects moving efficiently from initial excavation through to concrete installation and reinstatement.
Heavy Foundation Contractors You Can Rely On
Whether the project requires a substantial structural foundation, a specialist equipment base or foundations forming part of a larger civil engineering scheme, we deliver a practical, safety-focused approach backed by experienced people and capable plant.
Looking for a heavy foundations or reinforced concrete foundations contractor? Get in touch to discuss your project requirements.
Our commercial demolition services can form part of an enabling works package or a wider civil engineering project. We work closely with principal contractors, developers and project teams to ensure demolition is carefully coordinated with site clearance, excavation, drainage and subsequent groundworks.
Our demolition capabilities include:
- Commercial and industrial demolition
- Building and structural demolition
- Concrete demolition and breaking
- Slab and foundation removal
- Site clearance and preparation
- Hardstanding removal
- Excavation and material removal
- Crushing and processing of suitable materials
- Ground clearance following demolition
- Preparation for redevelopment
- Demolition as part of wider enabling works
- From Demolition to Site Preparation
Demolition is often only the first stage of a redevelopment. With our wider expertise in groundworks, bulk earthworks, drainage and civil engineering, we can continue beyond demolition to prepare the site for the next phase of construction. This joined-up approach reduces the need for multiple contractors and provides greater continuity from initial clearance through to excavation, infrastructure and foundation works.
Experienced Demolition Contractors
Safety, planning and control are central to every demolition project we undertake. Our team takes a practical approach to each site, using appropriate plant and working methods to complete works efficiently while minimising disruption to surrounding operations. Whether you require commercial demolition, concrete removal, site clearance or enabling works, we can provide a demolition solution tailored to your project and programme.
Planning demolition or site clearance works? Get in touch with our team to discuss your project requirements.
We provide professional site surveying services for civil engineering, groundworks and construction projects, delivering accurate information to support planning, setting out and the efficient delivery of works on site.
From initial site surveys through to construction setting out and level checks, our surveying capabilities help ensure works are positioned and completed accurately in accordance with project drawings and specifications.
Construction & Engineering Surveys
Accurate surveying is essential at every stage of a civil engineering project. We work alongside contractors, engineers and project teams to establish reliable site data and maintain accuracy throughout construction.
Our surveying services include:
- Topographical and site surveys
- Construction setting out
- Ground level and elevation surveys
- Earthworks and excavation surveys
- Drainage and utility setting out
- Foundation setting out
- Road and infrastructure setting out
- As-built surveys
- Level and position checks
- Site measurements and verification
- Surveying support for groundworks and civil engineering projects
- Surveying for Groundworks & Infrastructure
Our surveying capability integrates directly with our wider civil engineering, drainage, earthworks and groundworks services. This allows information gathered on site to be used effectively throughout excavation, drainage installation, foundation construction and external works. Accurate setting out and ongoing checks also help identify potential issues early, reduce costly errors and ensure construction progresses in line with design requirements.
Accuracy From the Ground Up
Whether surveying an existing site, setting out new infrastructure or verifying completed works, we provide a practical and accurate surveying service tailored to the requirements of each project. By combining construction surveying expertise with hands-on civil engineering experience, we understand not only how to gather accurate site information, but how that information needs to work in a live construction environment.
Need surveying or setting-out support for your next project? Get in touch with our team to discuss your requirements.