Basic cistern
Flexibles tanks for potable water
Fire fighting reserve
Flexible tanks for liquid fertilisersShop Flexible Water Tanks UK – Best Deals Online
Easily buy your flexible tank in England and in the UK – ideal for rainwater harvesting, fire water storage, or agricultural use. Our models range from 0.3 m³ to 2000 m³, all available at competitive UK prices.
Discover today our durable and eco-friendly rainwater storage tanks – the smart, practical and long-lasting choice for every home, farm, or business.
Flexible tank 10m³
Price with VAT: 1,745 GBPFlexible tank 12m³
Price with VAT: 728 GBPFlexible tank 15m³
Price with VAT: 1,970 GBPWhy Choose a Flexible Tank in the UK – Serena Group?
Durable and Easy to Install
Our PVC flexible tanks install in minutes without heavy work – ideal for gardens, farms, and industry across the UK.
Eco-friendly & Cost-saving
Using rainwater collection tanks reduces bills and supports sustainable water management, and protects the environment.
Tailored to Your Needs
From 0.3 m³ to 2000 m³, our flexible cisterns fit every project: rainwater harvesting, fire protection, or liquid fertiliser storage.
01
A High-Quality Flexible Tank, Easy to Install
Our flexible water tanks, built from high-strength PVC tarpaulins, are designed for durability and long service life, even under challenging UK weather.
Their smart design allows for quick, hassle-free installation with no heavy construction—ideal for homeowners, farmers, and industries needing a reliable, ready-to-use solution.
Each rainwater harvesting tank is delivered ready for immediate use, ensuring efficient water storage management from day one.
02
An Eco-Friendly & Cost-Effective Flexible Tank Solution
Choosing a flexible tank for rainwater harvesting allows you to save on your water consumption by using a free resource. This eco-friendly solution is known for its low maintenance cost and positive environmental impact. By collecting and storing rainwater, you actively contribute to water resource conservation while reducing your expenses.
03
A Product Designed and Manufactured by Experts
Our flexible water tanks, engineered in collaboration with our design office and production unit, guarantee high-quality storage solutions. Available in multiple models, they meet the needs of homeowners, farmers, and industries alike. Each flexible rainwater tank complies with strict UK safety and quality standards, offering a reliable choice for rainwater storage, fire protection, or liquid fertiliser use.
DEMONSTRATIVE VIDEO
Watch How Flexible Water Tanks Simplify Rainwater Storage
Quick installation, proven durability, and versatile use — agriculture, domestic, or fire safety.
Our Installations & Expert Tips on Flexible Tanks in the UK
Learn more about rainwater harvesting tanks, flexible water storage, and eco-friendly solutions installed with care and expertise across the UK.
Why is it better to install a flexible tank to collect rainwater?
Introduction :
Faced with environmental and economic challenges, collecting rainwater is becoming...
How to Choose the Ideal Capacity for Your Flexible Tank
Introduction:
Choosing the right tank capacity is essential to meet your storage needs effectivel...
Top 5 Benefits of Flexible Tanks for Agriculture and Industry
Introduction:
Flexible tanks are revolutionising water management for agriculture and industry.
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