Stormwater Attenuation Installation

We understand that the installation of a wastewater system is a big investment. But, with us you’re guaranteed a tailored service unique to you and your needs. Being experts in Sewage Treatment & Septic Tank Installations, we’re confident we can provide a solution that will last!

Stormwater specialists you can trust

Stormwater Attenuation Crates I Stormwater Attenuation Tanks I Stormwater Attenuation Lagoons

Managing stormwater is becoming more and more of a challenge for builders and developers who need to meet the increasing regulation to control its flow. A stormwater attenuation system provides a cost-effective solution but not all companies have the skills or know-how to install these systems themselves.

We’re one of the UK’s leading specialists and can design, supply and install a stormwater attenuation solution to meet your specific needs and budget. Whether that’s stormwater crates, bespoke tanks or a detention pond, we can help.

Types of stormwater systems

We design, supply and install a range of stormwater attenuation solutions. We also work with leading brands to deliver the best solution for your specific requirements and budget.

Stormwater Attenuation Tanks

Our stormwater attenuation systems aren’t limited in size or shape, unlike concrete or cellular systems, and can be designed to meet the specific needs of your design brief.

Storm Crate Systems

Our storm crates provide a cost-effective solution for managing stormwater. They can be used for both attenuation or ground infiltration in a variety of applications

Stormwater Attenuation Lagoons

Our stormwater attenuation lagoons, also known as detention ponds, provide a best practice means of managing stormwater run-off.

What choose us to install?

Trading for almost 30 years, we’ve built up a reputation for our excellent service, dedicated team and expertise. Time and time again our customers tell us they like working with us because we share the same core values as them – hard-working, friendly, professional and honest.

3 year no quibble guarantee

The quality of our work is what makes us stand out. We’re so confident in this fact that we’ve extended our guarantee to 3 years.

Excellent customer service

Delivering an excellent customer service is paramount to what we do. We’ve built up a reputation for being friendly, professional and 100% reliable.

100% compliant solutions

Be rest assured that we’ll devise a solution right for you and our work is carried out in accordance with relevant regulations, legislations and codes of practice.

Some of our work

Installation of a stormwater attenuation solution at Bournville RFC

Bournville RFC had been gifted a new site for its rugby club by Birmingham City Council and Sport England in Edgbaston, Birmingham. They had appointed leading sports turf contractor, Phil Day Sports, to install the all weather artificial grass pitch and two full-size grass pitches. As part of the project, Phil Day Sports asked us to install a stormwater attenuation solution for them to control and manage the runoff from rainwater.

Construction of a stormwater attenuation lagoon at Aston Villa’s training ground

O’Brien Contractors, the multi-award-winning civil engineering and groundwork contractor, had been appointed to work on the latest phase of Aston Villa’s new training ground. They contacted us in regards to a stormwater attenuation solution for this project. After careful analysis, it was agreed that we would construct as well as supply the detention basin by creating an attenuation lagoon…

We deliver solutions

We can deliver a complete solution when it comes to your stormwater management needs. These videos show you the complete installation of stormwater attenuation tanks we did for Bournville RFC and Heathcote Street using stormwater crates.

More reasons to choose us

Bespoke solution

Our aim is to work with you to provide a package and solution that suits your specific requirements. Whether that’s outsourcing the complete job to us or just a part of it. We can help you throughout the process, from the design, supply and at each and every stage of the installation.

Reduce your site costs

We pride ourselves on the quality of our work. Our knowledge of installing these systems means we know the pitfalls and how to avoid them. Thereby helping reduce your site costs and ensuring your project is delivered to a high standard and in a timely manner.

Health & safety assured

Health and safety is embedded in our culture. We’re committed to ensuring the safety of our employees, contractors and the communities in which we operate. We’ve put in place well-established policies and systems to manage and monitor health and safety performance.

Questions & Enquiries

Fill in the form below and a friendly member of our team will be in touch with you shortly, alternatively, you can use our live chat service or call us now on 0121 351 3230.


We’re not your typical merchant. Core to everything we do is our customers. After all, without you, we wouldn’t be here. At Cotterill Civils, we offer something a little different and we show this in the values we adhere to every day! Why not get in touch today to see how we can help you!

Customer Reviews