PARTNERS
Collaborative Success with Our Esteemed Partners
Enhancing our capability to deliver tailored solutions to the utility sector, ensuring high-quality and reliable service provision.


Radius Subterra operates across street works environments, major utilities, private networks, and the construction industry, upholding the highest standards of quality, health, safety, and responsibility. Our commitment to excellence is reinforced by our ISO 9001:2015 and ISO 14001 certifications, ensuring we never compromise on industry standards.
In addition, our Radius Subterra Lining offers specialized pipeline protection and rehabilitation solutions, featuring trenchless pipe lining and coating technologies designed to treat corrosion and structural damage in aging pipelines or protect new pipelines before they become operational. By eliminating excavation, our innovative methods enable rapid protection and repair of water, wastewater, and gas pipes in restricted-access areas, maximizing flow capacity and extending the infrastructure’s lifespan.

Flowstop Services Ltd are an established specialist service company within the gas
and water industry. We are able to offer key operations for contracting and utility
organizations that range from hydrostatic testing to stopple operations.
Along with our subsidiary company, Flowstop Engineering Ltd, we are also able to
supply and install a full range of under pressure fittings that are fully approved by the
GDN’s.

Flow Stop engineering are able to supply and install a full range of under pressure fittings that are fully approved by the
GDN’s.
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Stopple Tees
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Completion Plugs
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Under Pressure Drilling Tees (UPT)
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End Caps
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Flange Adaptors
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Winged Flange Adaptors
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Bespoke Fittings.
