Stormwater attenuation tanks

Our systems are designed and made to order. We offer the most cost effective and flexible underground storage and disposal solution on the market.

Custom built to last

Don’t be limited by the size or shape of concrete or cellular systems; work with our design team to create a stormwater system that really meets your site brief. We can offer an infinite number of layouts using pipes from 0.3m to 3.6m diameter – with a mimimum design life of 60 years.

There’s no need for fabrication work on site. All our tanks are assembled and factory-fitted with any access shafts, ladders, inlet and outlet connections you need. This means that installation is often just a simple pipe laying exercise and any future maintenance is planned for. We also factory-fit flow regulators, so there’s no need for expensive regulator chambers, significantly reducing the end cost of the project.

Contact us
Steve Mascall

National Sales Manager
+44 7889 535705

Download Catalogue

Features and Benefits


Designed to HA Standard BD12

Easy to maintain

Full access for routine and regulatory inspection and cleaning

Helibore pipe

Fabricated from Helibore pipe, a BBA Certified product


High quality pre-galvanised coil to BS EN 10143 gives a design life of 60 years minimum

  • Flow regulators to restrict discharge to the specified rate

  • Pump chambers to achieve required storage volumes

  • Submersible electric pumps complete with switchgear and control panels

  • Gasketed joints, fully tested and WRc approved to ‘Sewers for Adoption’ standards

  • Trenchcoat Polymer secondary coating (BBA Certified) for a life of 50 years in aggressive environments

We’ve supplied over 3,000 tanks across the UK since 1987, bring true value engineered solutions to hundreds of construction projects.
Request a quote or brochure

    Have a project in mind?

    Contact us


    This is text that will be here so that it looks nicer. something

    How are UltraCor® structures different from other ViaCon bridge solutions?

    They are stronger and wider than SuperCor®, Hamco MP200plus®. As opposed to CON/SPAN, they are made of steel and not concrete so they are more ecological and 30-40% more cost-efficient. And unlike Acrow® 700XS®, they are applicable for buried solutions but take a bit longer to install.

    Contact us

    Have an idea or a project, lets collaborate!

    Contact us