Drainage Design Consultants UK

Trustworthy Drainage Design Consultants Near You

At Courous, we deliver tailored drainage design solutions for residential, commercial, infrastructure, and strategic road projects across the UK. As a specialist consultancy, we provide expert support from concept through to planning, ensuring all drainage designs are compliant, sustainable, and efficient.

Whether you need guidance on a new build, extension, or large-scale infrastructure project, our local licenced experts deliver precise, regulation-ready drainage plans that meet environmental standards and planning conditions.

Reach out to our experts today to discuss your project and book a survey. We will design a bespoke drainage system for your property according to its requirements.

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Our Services

Drainage Design

We deliver comprehensive foul and surface water drainage design solutions for developments and strategic road networks. Our work includes the detailed design of drainage pipe layouts, ACO drains, drainage channels, and land drainage pipe systems to ensure efficient water management and long-term sustainability.

Flooding Assessment & Mitigation

We support clients in navigating planning regulations and managing water-related risks through robust assessments and design of mitigation measures, including soakaways, attenuation systems, and ponds.

We design innovative systems that protect the environment while meeting CIRIA, DMRB, and EA guidelines. Our designs incorporate sustainable surface water drainage and pollution control features tailored to each project.

Pollution Mitigation Design

Get Started with Courous Today

Our experienced team of engineers offer a full range of drainage design services, including:

• Surface drainage and Foul water drainage design

• Sustainable Urban Drainage Systems (SuDS) integration, including soakaway and pond design

• Highway and infrastructure drainage, including channel drainage and ACO drain specifications

• Attenuation and infiltration systems

• Flood mitigation solutions

• Drainage strategies for planning applications

• Land drainage pipe layout design for rural and agricultural developments

We provide comprehensive drainage design services tailored to the UK Strategic Road Network. Our engineers have delivered solutions for major projects including National Highways, HS2, MOD, and local authority schemes. With extensive technical knowledge and a commitment to best practice, we deliver designs that comply fully with DMRB, EA, CIRIA, HS2, EN, BS, and SFA standards.

15+

Years of Experience

Acquire Swift Assistance from Experts

Our experienced consultants provide rapid on-site evaluations and emergency design adjustments, ensuring your drainage systems remain compliant, efficient, and protected against costly flooding or infrastructure damage.

Secure Your Project with UK’s Reliable Drainage Consultants

Effective drainage design is essential for managing water sustainably, protecting developments, and ensuring environmental compliance. Whether for a new housing site, a commercial development, or critical infrastructure like highways, a robust drainage strategy minimises flood risk, prevents structural damage, and supports long-term sustainability goals.

At Courous, we act as your dedicated consultant, delivering expert drainage design solutions for projects of all sizes - from private developments to major national infrastructure schemes.

Whether you're planning a new build, extension, or redevelopment, Courous is here to support you every step of the way. Reach out now, and we’ll be delighted to discuss how we can deliver smart, cost-effective drainage design solutions that align with your budget and timeline. Simply call us at 01254 377171 or email info@courous.co.uk to get started.

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Our Happy Customer

Outstanding service from start to finish! The pollution mitigation strategies they delivered were innovative and effective. The flooding assessment was detailed, helping us plan with confidence and avoid costly issues. Their drainage design was spot-on, combining both functionality and long-term sustainability. Truly a professional team dedicated to delivering quality results.

Brian Moten

The team provided exceptional support with pollution mitigation design, ensuring compliance with regulations while keeping our project environmentally responsible. Their flooding assessment was thorough and gave us clear insights into potential risks. Most importantly, their drainage design was practical, efficient, and tailored to our site conditions. Highly recommend their expertise for anyone seeking reliable and sustainable solutions.

Clarice Turner

★★★★★

★★★★★

Frequently Asked Questions

Do you handle both residential and commercial projects?

Yes, we work with homeowners, developers, and businesses. Whether it’s a small home extension or a large commercial site, our consultants provide tailored drainage solutions to meet your specific needs.

Can you help with planning approval for my project?

Absolutely. We prepare fully compliant drainage strategies and designs that meet local authority requirements, making your planning application process much smoother.

Do you provide drainage consultancy services for small residential projects?

Absolutely. Whether it’s a home extension or renovation, our professional drainage consultants create tailored solutions just as carefully as we do for large commercial sites.

How do drainage strategy consultanthelp with new developments?

Our drainage strategy consultants provide detailed reports and designs that satisfy local authority requirements, ensuring your project gains approval without costly delays.