Specialist Pipeline Engineering
Engineering safe, reliable pipeline solutions for gas, water and biogas networks, alongside industry-leading pipeline rehabilitation solutions throughout the UK and beyond.
We deliver live connections, flowstopping, rehabilitation and installation with technical expertise, national coverage and trusted end-to-end support.
Sectors
Radius Subterra supports critical utility and energy networks, contractors and developers with specialist pipeline engineering, live service connections and rehabilitation solutions.
Working in the UK and beyond, we deliver safe, efficient and compliant operations across planned works, emergency response and complex project environments. With inhouse engineering capability, access to innovative products and the strength of the Radius Group behind us, we provide a complete, integrated service.
Gas
We deliver specialist gas pipeline services including live connections, flowstopping, polyethylene (PE) and metallic operations, diversions and rehabilitation.
Our teams support GDNs, Tier 1 contractors and developers with safe, compliant solutions engineered for operational reliability and challenging site conditions.
Water
Our water services cover live tapping, flowstopping, pipeline installation, pressure testing, disinfection, commissioning and rehabilitation.
We support water companies and delivery partners with reliable, low-impact solutions that maintain supply, minimise disruption and meet strict quality and regulatory requirements.
Biogas
We support the growing biogas sector with specialist pipeline engineering, live connections, flowstopping and polyethylene (PE) installation services.
Our expertise in gas distribution transfers seamlessly to anaerobic digestion infrastructure, enabling safe upgrades, diversions and maintenance for biomethane plants and injection points.
Pipeline
Rehabilitation
We provide advanced rehabilitation solutions for ageing or deteriorated pipelines, including Rolldown™, Subline™, Subcoil™ and structural repairs.
These techniques restore performance, extend asset life, and offer a safer, faster, lower-carbon alternative to opencut replacement across gas and water networks.
Solutions
Pipeline services built for every challenge
Radius Subterra delivers a complete suite of engineered solutions for gas, water and biogas infrastructure. From live connections and flowstopping to pipeline rehabilitation, testing, commissioning and specialist cutting, our teams combine deep technical expertise with rapid deployment in the UK and beyond. We provide safe, efficient and end-to-end support for planned works, urgent interventions and complex operational challenges.
Case Studies
Discover how Radius Subterra delivers safe, innovative and technically assured solutions across the UK’s most challenging pipeline environments.
Faced with severe leaks in a critical 1500mm trunk main, Radius Subterra provided an innovative pipeline rehabilitation solution using their close-fit PE liner system. This approach restored the pipeline’s integrity
Discover how Radius Subterra’s precision engineering revitalises a historic London waterway with cutting-edge pipeline solutions, installing a bespoke branch saddle onto a live water main in Finsbury Park. This job
Radius Subterra partnered with Anglian Water to solve leak issues in a hard-to-reach 10” water pipeline in East Anglia. Using their innovative Rolldown & Slipline method, Subterra maximised pipe bore
What our client’s say about us
Why choose Radius Subterra?
Trusted expertise, engineered solutions and a service approach shaped around your challenges.
For decades we’ve supported utility networks in the UK and beyond with safe, reliable and efficient pipeline services. Our teams combine technical knowledge, industry-leading equipment and a problem-solving mindset to deliver high-quality outcomes with minimal disruption. Whether planned works or complex operational challenges, we provide proven capability and dependable support.
Decades of expertise
With deep roots across the wider Radius Group and extensive experience in live gas, water, biogas and pipeline rehabilitation operations, our teams bring exceptional hands-on knowledge to every project. We understand the pressures faced by network operators and contractors and deliver work that is safe, compliant and technically robust from start to finish.
Committed to quality and safety
Safety underpins every service we deliver. Our work follows industry standards, rigorous internal procedures and environmental best practice. From accredited techniques to specialist equipment, we ensure consistent quality while reducing risk, waste and unnecessary disruption across gas, water and biogas networks.
Minimising disruption
Our specialist techniques, including under-pressure connections, flowstopping and trenchless rehabilitation, allow essential works to continue while maintaining customer service, protecting highways and minimising community impact. Reduced excavation and streamlined operations, support faster reinstatement and lower overall disruption.
Innovation and customisation
From bespoke branch saddles to tailored fittings for non-standard assets, innovation is central to our approach. We engineer solutions to suit each site, material and operating condition, enabling safer, faster and more cost-effective outcomes across complex project environments.
Safety and sustainability
We champion safe working and long-term sustainability. Our methods reduce carbon, excavation material, traffic disruption and reinstatement, while modern equipment and ongoing training create a safer environment for teams and the public. Every project is designed and delivered with environmental responsibility and operational resilience in mind.
Contact us
Ready to progress your next pipeline project?
Radius Subterra’s specialist engineering teams are here to support you with safe, efficient and technically assured solutions across every stage of the asset lifecycle.
Get in touch by phone or email to discuss your requirements and speak directly with our experts.
Alternatively, complete the form below with the relevant information.