Turn every drop
into a resource
Intelligent rainwater harvesting, flood mitigation, and water management systems for commercial, residential, agricultural, and municipal clients across the UK.
Everything you need
to manage water smarter
Comprehensive tools designed to help you achieve your sustainability goals and reduce operational costs — without complexity.
Automated Systems
Intelligent automation handles the heavy lifting. Set parameters once and let the system continuously optimise your water usage around the clock.
Real-Time Insights
Live dashboards and comprehensive reporting give you the data to make confident decisions and identify savings opportunities instantly.
Seamless Integration
Pre-built connections to popular building management systems. Our API enables custom integrations with your existing workflows and tools.
Mobile Access
Monitor and control your entire system from anywhere. Full-featured mobile apps for iOS and Android keep you in control on the go.
Compliance Ready
Stay ahead of UK water regulations with automated compliance reporting, audit trails, and documentation built directly into the platform.
Proven Cost Savings
Clients typically see 30–60% reductions in water costs. Good for the planet, measurable on your balance sheet. ROI often achieved in under 12 months.
Trusted by industry leaders
Here's what clients across commercial, residential, and agricultural sectors say about their results with Rainwater Doctor.
Rainwater Doctor's system delivered a 45% reduction in water costs — ROI achieved in just 8 months. The real-time monitoring gives us complete visibility into our operations. Genuinely transformative for our facilities team.
The support has been exceptional from day one — installation to ongoing maintenance. Our facility managers love how intuitive the platform is. We've rolled it out across three sites without a hitch.
Water efficiency is critical to our bottom line. Rainwater Doctor's precision irrigation reduced water usage by 50% while actually improving crop yields. We couldn't have imagined results like this without their system.
Is Your Property at Risk of Surface Water Flooding?
Surface water flooding is the UK's most common and fastest-growing flood risk. Over 5.4 million properties in England alone are now at risk, and climate change is making extreme rainfall events more frequent.
Our interactive flood risk map shows surface water flooding hotspots across the UK, with detailed local risk assessments and mitigation recommendations for each area.
Explore Flood Risk Areas →Complete Water Management Services
From simple water butts to full rainwater harvesting systems, we have the right solution for every property.
Rainwater Management
Intelligent collection, storage, and utilisation systems that reduce mains water consumption by up to 60%.
Learn about rainwater management →Flood Prevention
Professional flood mitigation and sustainable drainage systems (SuDS) to protect your property.
Explore flood prevention →Water Butts
Get a free water butt for your garden through our community programme. Large water butts and slimline options available.
Get your water butt →Tank Sizing Guide
Use our rainwater tank sizing guide and calculator to find the perfect rainwater storage capacity for your needs.
Calculate rainwater tank size →Commercial Solutions
Enterprise-grade rainwater harvesting systems and stormwater management for businesses, schools, and industrial sites.
View commercial rainwater harvesting →Rainwater Q&A
Answers to common questions: what is rainwater harvesting, how does rainwater harvesting work, regulations, costs, and more.
Read rainwater harvesting FAQs →Frequently asked questions
Everything you need to know about rainwater harvesting, flood mitigation, and our services.
Most rainwater harvesting system implementations complete within 2–4 weeks depending on scale and complexity. Residential installations are typically done in 1–3 days. Enterprise implementations may take 4–8 weeks to ensure full integration with existing systems — we work efficiently to minimise disruption throughout.
Rainwater harvesting reduces mains water consumption by up to 50%, lowers water bills, provides drought resilience, and helps prevent surface water flooding. Explore our rainwater harvesting systems or start with a free water butt.
Absolutely. Rainwater Doctor is designed to work seamlessly with most existing rainwater management infrastructure. We offer pre-built integrations with popular building management systems, and our full API enables custom integrations with your own tools and workflows.
Rainwater harvesting cost varies by system size and complexity. Residential systems start from £3,000. Our rainwater tank sizing guide helps you find the right size. Get a free quote for your property.
Use our rainwater tank calculator to find the right rainwater storage capacity. A typical UK home needs 3,000–5,000 litres. For garden watering only, a large water butt (200–500L) may suffice. Read our tank sizing guide for details.
Yes — we serve clients across England, Scotland, Wales, and Northern Ireland. We have regional expertise in areas such as London, Bristol, Exeter, Manchester, and more. Our location-specific knowledge of local council schemes and flood risk zones means we can advise you on the most relevant solutions for your area.