Advantages and Benefits of

One Piece GRP Tanks

Nicholson Plastics GRP Tanks

Advantages and Benefits

of One Piece GRP Water Tanks


Nicholdon Plastics one piece tanks range are available from a standard set of one piece tanks or made to order bespoke tanks. One piece insulated Format 30 tanks for potable use or uninsulated for non potable use.

A Maintenance-Free and Cost-Effective Storage Solution

Our one piece tanks range in capacities from 45 litres to 24,000 litres. They are low maintenance, low cost, and long lasting durable tank, hand laid up, manufactured from GRP (Glass Reinforces Plastic). GRP is a lightweight, high grade material with improved resistance to bacterial growth within the tank. GRP has been shown to exceed common materials, such as aluminum. It is the ideal material for longevity, which helps to explain why it can last so much longer than other options. We are aware that not all installs are straight forward, where a tank may be required for an existing plant room our standard one piece tank range may not fit due to access restrictions. We are happy to supply our customers with a made to order tank. We will work closely with you to design a bespoke tank to meet your water supply needs. They are a perfect option for a wide range of cold water storage applications for domestic or commercial projects.

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Browse our selection of cold water tanks for more information on sizes and applications. Nicholson Plastics manufacture a wide range of tanks including:

  • Cube – self assembly tanks
  • Two Part Tanks
  • City Tanks
  • Category 5 tanks
  • Sectional Water Tanks
  • Combined Sectional Tank Enclosures


Sectional Tank Install Nicholson Plastics

Fast Delivery Throughout the UK

GRP is a lightweight material that reduces transport costs. There is no heavy lifting machinery required to on or offload. At Nicholson Plastics we deliver nationwide within a couple of days. GRP is easily transported from our factory, consequently saving on the overall instalment costs.


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Corrosion- Free – Virtually No Maintenance

GRP has a design life of 25 years, together with the corrosion properties this material is maintenance-free compared to steel, aluminium and concrete which can rust or corrode. GRP, otherwise known as fibreglassis extremely durable will not distort under impact compared to other traditional materials. Our tanks are as standard complete with a heavy-duty close fitted sealed cover which is wind and snow resistant and also low maintenance.



Tank Installation

Condensation Trays, Screened Inlets, and Overflows Available


At Nicholson Plastics we supply condensation or drip trays to suit each of our one piece tanks. Condensation trays should be used in any occasion where condensation drips from the pipework of the tank to save the floors in the tank room from getting wet or slippery.

We supply a range of connections, inlets and overflows, and ball valve housings, contact us today for further information.
At Nicholson Plastics all materials used to manufacture our tanks are tested to the highest standards for potable water compatibility.

Water tanks are supplied in an ivory colour as standard. All supplied within the scope of our BS EN ISO 9002 Quality Assurance Registration.

Get in touch to enquire about our excellent range of GRP water storage tanks today.


Our Accreditations

At Nicholson’s, we pride ourselves in manufacturing and installing GRP water tanks of the highest quality throughout the UK. Click to see Our Certifications.


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bsi member cert
Certified ISO company
cpd member logo
chas accredited contractor
safe contractor approved

Why work with us for your Water Storage Needs?

Over 50 years’ industry experience

Projects completed in the last 24 months

Nicholson Plastics is a UK GRP Cold Water Storage Tank Manufacturer with a proven track record in the supply of water tanks to all industry sectors throughout the UK. We have an expert team on hand with over 50 Years' industry experience. Our team works hard to provide exceptional industry lead times from quotes, site visits, order processing, and delivery. We are a British Standard approved company with full certification through BSI/ISO9001 including WRAS approved certified water tanks suitable for potable drinking water.

  • Over 50 years of technical knowledge.
  • Quality assurance at a local level.
  • UK customer support teams, backup, replacement service & advice.
  • Supporting local and sustaining UK manufacturing.
  • Regional sales representatives for site visits, emergency water requirements, and project advice.


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Our Team Tank Care+ Service for your Cold Water Tanks

Our support team is on hand to answer all your water tank queries. Call, email or talk to us via our webchat today. Track your order, general enquiries, water storage tank specifications, request a quote or just give us feedback.

Our team has over 50 years of experience in providing GRP cold water tank solutions to our customers across all industry sectors throughout the country.

We are happy to help, get in touch!


Team Tank Care - Water Storage Tanks