The National Drainage Show returns to ExCeL London on 26–27 November 2025, running alongside Floodex, the Waterways Management Show, and the National Civils Show. Proudly supported by the National Association of Drainage Contractors (NADC) and Drain Trader magazine, the event brings together the full spectrum of the drainage, flood management, and civil infrastructure community for two unmissable days of innovation, networking, and collaboration.
This year’s event is set to be the biggest yet, with over 165 exhibitors and 50 seminar sessions across multiple theatres. As Event Director Jon Irwin explains:
“This year’s event is our biggest yet and, running alongside the National Civils Show, presents a brilliant opportunity for visitors working across the drainage, flood management, and waterways management sectors. A systems approach is needed to improve how we manage water from the home, business, and community back into nature.”
With new exhibitors, new technologies, and a renewed focus on sustainability and resilience, the 2025 event is shaping up to be a landmark occasion - uniting engineers, contractors, local authorities, and innovators under one roof to share ideas and solutions for the challenges ahead.
Seminars, insight and innovation
Expert talks shaping the future of water, drainage and infrastructure
Alongside the bustling exhibition floor, the National Drainage Show, Floodex, Waterways Management Show, and National Civils Show will host a packed programme of CPD-accredited seminars and panel discussions, offering valuable insight, innovation, and inspiration from across the water, drainage, and civil infrastructure sectors.
This year’s programme tackles some of the most pressing issues facing the industry today – from the impacts of climate change and urbanisation to new technologies, sustainability, and the evolving regulatory landscape. Across multiple theatres, delegates can hear from leading experts, engineers, policymakers, and practitioners sharing practical experience and real-world case studies.
Highlights from the theatres include:
• Buried Infrastructure, Visible Impact: Life Cycle Assessment of Sewer Pipes
• FloodAI: Using AI to Better Predict Flooding in Fast-Responding Catchments
• Integrating Beavers with Natural Flood Management to Reduce Downstream Flood Risk
• Improving Standards, Cost and Carbon Reduction in Buried Precast Concrete Pipeline Systems
• The Great Debate: Climate Change-Induced Flooding
• Improving Gender Equality Across the FCERM Sector
• Green vs Grey SuDS – Challenging Conventional Wisdom that Green SuDS is Always Best
• Accelerated Durability Testing for Infrastructure Projects
• Managing Highways Runoff in a Changing Climate
• AMP8: A Reflection on the Last 6 Months and What it Means for a Supplier
With over 50 presentations and debates across all four shows, visitors can expect two days of thought-provoking discussion and practical knowledge-sharing. Whether your focus is drainage, flood management, water quality, or infrastructure delivery, this year’s seminar programme offers a unique chance to connect ideas, explore new technologies, and gain fresh perspectives.
For the full schedule and speaker details, visit