Stormwater systems designed to protect your asset beyond handover

ViaCon provides prefabricated steel stormwater tanks that install significantly faster than traditional solutions, reduce on-site complexity, and support long-term asset performance. With a design life of up to 120 years and the potential to achieve up to 70% lower embodied CO₂e than alternative materials, our systems support programme certainty, ESG commitments and durable asset delivery.

Compliance and ESG built‑in

CD375 compliance
BBA approved
WRC approved

Why developers choose ViaCon

Long-term asset value

Engineered for decades of predictable performance beyond handover

Accessible inspection

Maintenance for long-term operational confidence

Design flexibility

For constrained sites and phased developments

Faster installation

Prefabricated modular systems reducing site exposure

3-in-1 drainage solution

Reducing interfaces, manholes and supply-chain complexity

Sustainability-led materials

Steel is 100% recyclable, with significantly lower embodied carbon than alternatives

The 3-in-1 system

Designed for efficient delivery

A single prefabricated system integrating the attenuation tank, carrier pipework and flow control manhole
Fewer components and interfaces, supporting faster installation and simpler long-term management
Modular sections enabling rapid assembly and shorter excavation durations
Reduced time in excavations and smaller site teams, supporting safer, more efficient construction
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Case studies

Complex deep-depth, high-volume soakaway tank solution

Deep installation with high storage volume delivered using the modular 3‑in‑1 concept to protect programme and simplify coordination.

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Harvesting rainwater for a sustainable cooling solution

When the local supply couldn’t meet demand, the design switched to harvesting roof rainwater. The prefabricated steel tank system installed faster and proved more cost‑effective than the originally planned concrete design.

See the case study

Technical details

Construction

Flexible, cold‑formed helically corrugated galvanised steel; optional polymer coating variants for enhanced longevity.

Maintenance

Standard manholes for inspection and jetting; straightforward silt management.

Loading

Can be installed beneath construction routes and trafficked zones when designed accordingly.

Quality

Manufactured to EN 1090‑1 with QA; installation guidance and on‑site support available.