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Here, you will find a comprehensive selection of stormwater attenuation crates tailored to meet your project’s unique site-specific requirements. Selecting the right system is crucial, so we offer a diverse range of products to accommodate various loadings, site conditions, and constraints.

Our stormwater attenuation tanks are not just designed, but engineered to manage runoff effectively, providing robust protection to properties and the environment from water damage and flooding.

Crafted for practicality and efficiency, our solutions are your reliable, cost-effective answer to stormwater management for sites without access to adequate drainage facilities.

Our team of experts is committed to helping you find the ideal stormwater management solution. We take pride in delivering high-quality, durable solutions designed for the demands of commercial construction and civil engineering projects. Whether you’re dealing with a small development or a large-scale site, GRAF UK has the expertise and the products to ensure your project’s success.

Would like to discuss your project and see how we can help? Click here

Check out our Stormwater Attenuation crates

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Read some of our latest case studies

Check out our latest installation video featuring the EcoBloc Maxx stormwater attenuation tank at a new primary school in Wales.

Witness firsthand how our innovative solutions help mitigate flooding risks while preserving the environment.

Click here to watch the video and discover how GRAF UK is leading the way in sustainable stormwater management.

Key features

Save time, space, and money

Save time, space, and money

Thanks to the stackable design of our crates, You'll slash storage space and deliveries by up to 5 times, and dramatically reduce unloading time and equipment usage.

10+ years of installation expertise

10+ years of installation expertise

We're the UK's only manufacturer with an in-house installation team boasting over a decade of hands-on experience.

Unmatched speed

Unmatched speed

From enquiry to installation we guarantee the fastest turnaround in the UK, period. If you find a supplier promising quicker service, we'll beat their time - no questions asked.

Fill out the form below if you have a project and would like advice on the best system for your project.

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Frequently asked questions

What is stormwater attenuation, and why is it important?

Stormwater attenuation is the process of managing and controlling the flow of rainwater to prevent flooding and erosion. It is essential for urban areas where impermeable surfaces increase runoff, posing risks to infrastructure and ecosystems.

What types of stormwater attenuation systems does Graf UK offer?

Graf UK offer various geocellular attenuation crates which are used to create both attenuation and soakaway tanks. These solutions are designed to manage runoff in different settings, from residential developments to large commercial sites.

How do Graf UK’s stormwater attenuation systems work?

Our systems temporarily store stormwater during heavy rainfall, releasing it slowly into the ground or drainage system. This reduces peak flow rates and minimises the risk of flooding downstream.

What are the benefits of using stormwater attenuation systems?

Benefits include reduced flooding risk, compliance with planning regulations, improved water quality, and enhanced sustainability by promoting natural water infiltration and recharge.

Where can stormwater attenuation systems be installed?

These systems can be installed in various environments, including urban areas, residential developments, commercial sites, and industrial properties. They are adaptable to different landscapes and project requirements.

What is the installation process for a stormwater attenuation system?

Installation involves site assessment, excavation, system assembly, and connection to drainage networks. Graf UK has a dedicate in-house installation team with over 10+ years’ experience installing attenuation tanks.

How do these systems help in reducing flooding risks?

By controlling the rate at which stormwater enters the drainage system, attenuation systems prevent overload during heavy rain, reducing the likelihood of surface flooding and protecting infrastructure.

What maintenance is required for stormwater attenuation systems?

Regular maintenance includes inspecting and cleaning inlets and outlets, checking for blockages, and ensuring structural integrity. Routine maintenance ensures long-term performance and reliability.

Do Graf UK’s systems comply with UK regulations and planning requirements?

Yes, our stormwater attenuation systems are designed to meet UK planning regulations and environmental standards, ensuring legal compliance and effective performance in managing runoff.

What factors influence the cost of stormwater attenuation systems?

Costs depend on factors such as system size, complexity, site conditions, and installation requirements. While initial costs vary, long-term benefits like flood prevention and regulatory compliance often justify the investment.

What kind of support does Graf UK provide for these systems?

Graf UK offers comprehensive support, including system design consultation, installation services, and ongoing maintenance assistance. Our expert team is ready to help with any questions or challenges you may face.

Book a call with one of our experts

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