Rainwater Harvesting Solutions

Our Rainwater Harvesting Systems are designed to accommodate farms, homes, gardens, industrial settings and multi-house dwellings, making it virtually impossible for you not to find exactly what you’re looking for.

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What is Rainwater Harvesting?

The process of rainwater harvesting is straightforward.

A rainwater harvesting system collects, filters and stores rainwater.

When rain falls onto the roof of a property, it’s channelled through the gutters and downpipes into a rainwater tank via a filter.

The filter allows rainwater to be cleaned before it passes through to the tank – preventing leaves, moss or debris from entering the tank. 

The water within the system is then stored reliably in the rainwater storage tank until it can be diverted to the required place. This could be an outdoor tap for garden irrigation or car washing, to a washing machine or a toilet for flushing.

Our rainwater harvesting systems are designed to accommodate the needs of domestic, commercial and industrial customers, including (but not limited to) farmers, homeowners, gardeners and landlords.

Commercial Systems

Rainwater tanks can also be used for commercial rainwater harvesting.

A rainwater harvesting system can collect, filter and store rainwater from the roof of a commercial building, helping businesses to achieve their goal of focusing on water independence. On top of this, a rainwater storage tank can offer a cost-effective solution for various businesses and their buildings.

Harvesting rainwater will allow commercial businesses to work towards sustainability and will meet the requirements of clients and buildings, alike.

The contents of the rainwater collection system can be used for toilet flushing, irrigation and vehicle washing – reducing reliance on mains water supplies. This allows commercial clients to reap the benefit of reduced carbon emissions and savings on their monthly water bills.

At Cotterill Civils, we supply tanks in an array of shapes and sizes and are confident we can offer the perfect solution for your commercial rainwater harvesting needs. Why not get in touch to find out more?

Domestic Systems

Here at Cotterill Civils, our rainwater harvesting solutions enable homeowners to recycle rainwater for use around their homes and garden.

The rainwater harvest tanks that we supply are used to store water for washing clothes, watering your garden or washing your car. Our domestic rainwater harvesting solutions are extremely reliable, simple and safe.

They can save up to 50% of your household’s water consumption, too, making the process environmentally (and financially!) sustainable.

To find out more about the rainwater harvesting tanks we supply, please feel free to contact our specialists.

You can either call 0121 351 3230, or drop us an email at enquiries@cotterillcivils.co.uk and we’ll get back to you as soon as possible.

Our Rainwater Tanks

Our high-quality rainwater tanks are made from plastic HDPE or galvanised steel. You’ll also discover a choice of sizes, ranging from 150 Litres, all the way up to 768,000 Litres, or more if required.

We aim to satisfy the demands of all industries and buildings, hence why we provide the Gravistore 1 Building (agricultural and commercial rainwater harvesting solution for premises with one building), as well as the Premistore (2+ Buildings)! These boast a long-life design and are manufactured to meet British safety standards.

The most popular rainwater harvesting tanks include the 5,000 Litre, 10,000 Litre, 15,000 Litre and 30,000 Litre which are available in various options at Cotterill Civils. Some of the rainwater harvesting tanks are horizontal, whilst others are bunded, static or vertical. We also have cone tanks available that are designed specifically to collect and use water automatically.

If you’d like to know more about the rainwater tanks we have in stock, or you’re unsure which is best for your application, don’t hesitate to contact the team. 

How can you benefit from Rainwater Harvesting?

Rainwater harvesting is an effective and eco-friendly solution for increasing the efficiency of your water usage.

Below are just some of the ways you can benefit from using rainwater tanks.

  • Reduced water consumption
    The water that is stored inside the rainwater harvesting tanks can be used for various systems, including toilet flushing, outdoor taps and many more. Finding appropriate rainwater harvesting solutions will ultimately reduce the amount of water that you use, therefore making your bills cheaper.


  • Simple installation
    Installing rainwater tanks is quick and easy and, if required, we can also provide an installation service. The rainwater harvesting system is managed carefully by our technical experts and any of the equipment that we supply is tried and tested to guarantee the best results.


  • Environmentally friendly
    Rainwater doesn’t contain any nasty chemicals, meaning less energy is required at water treatment centres. This helps to reduce carbon emissions, which is great for the environment – not to mention gardens and landscaping.


  • Emergency water supply
    Having access to a rainwater harvesting tank can be a real bonus, especially in case of emergencies. If there is a water shortage or no mains nearby, you can use the water stored in your rainwater collection system. What’s more, once natural rainwater has been properly filtered and disinfected, it’s usually safe to drink.

If you’d like to know more about the advantages of rainwater harvesting, you’re welcome to contact the specialists here at Cotterill Civils. We’re always on hand to help and will be more than happy to share our expertise.

Simply give us a call on 0121 351 3230.