🎄 Festive Opening Hours 🎄
Our phonelines will close at 1pm on 24th and 31st December.
We’ll be closed on 25th, 26th December and 1st January.
We’ll reopen with normal hours on 2nd January.
Wishing all our customers a happy and safe festive season!

News & Insights

Blog

Why submitting a transfer meter reading matters

September 12, 2025

Networks

Section 8 (2) Notice WIA91 – The Peninsula Hotel

September 4, 2025

Blog

How can businesses improve England’s water shortages

June 17, 2025

Castle Water employees Kevin and Peter standing in front of the 2025 Cateran Yomp event sign

News

Castle Water’s Team Raises Over £4.5k for ABF The Soldiers’ Charity at the Cateran Yomp

June 11, 2025

News

Castle Water celebrates 20,000 5-star Trustpilot reviews

June 4, 2025

Blog

Preparing for dry weather in 2025

May 19, 2025

Blog

World Water Week 2025

May 12, 2025

News

Team Castle Water steps up for charity at 2025 Glasgow Kiltwalk

April 28, 2025

Networks

Section 8 (2) Notice WIA91 – Frenchgate Shopping Centre

April 10, 2025

Blog

Look carefully before you switch your business water – mis-selling is rife

April 9, 2025

News

Castle Water and Bowls Scotland team up for World Water Day 2025

March 21, 2025

News

Castle Water shortlisted among top 8 UK businesses for Customer Satisfaction at British Business Awards 2025

March 18, 2025

Wet river otter with sleek brown fur emerging from water

News

Castle Water Acquires Brightwater, Strengthening Position as the UK’s Leading Independent Water Retailer

February 7, 2025

Close-up of leaking pipe connection with water spraying out onto a reddish surface, showing plumbing failure.

Blog

Water leaks – Who’s responsible for the bill?

February 1, 2025

Blog

What is water abstraction?

January 31, 2025

News

Castle Water CEO John Reynolds confirms water tariff increase from April 2025

January 14, 2025

Closeup image of a woman writing on a blank notebook on the table

Blog

Save water, save money, and boost efficiency in 2025

January 8, 2025

Group of people wearing festive Christmas sweaters standing together outside a building entrance.

Blog

Castle Water in the community: A year of partnerships in 2024

December 23, 2024

News

Castle Water announces planned acquisition of Brightwater

December 17, 2024

News

Castle Water Wrapped 2024

December 16, 2024

Blog

The journey from snowfall to business water

December 4, 2024

News

Castle Water is pleased to announce its financial and operating results for 2023-24

November 25, 2024

Background with falling golden glitter particles. Falling gold confetti with magic light. Beautiful light background

News

Castle Water awards Rabbit Hole Cakes for ‘Excellence in Food and Drink Produce’ at 2024 Star Awards with Perthshire Chamber of Commerce

November 25, 2024

Frozen outdoor water spigot with ice crystals forming on metal pipes and valve in winter.

Blog

Conducting a winter leak inspection

November 19, 2024

News

Preparing Scotland’s youth for the workplace

November 15, 2024

Blog

Save water and money this winter with rainwater harvesting

November 12, 2024

Blog

Get your business prepared for winter

November 7, 2024

News

A strong alliance: Castle Water and Giants Live

November 1, 2024

Blog

Castle Water to refund some customers £17

October 31, 2024

Underwater view of deep blue ocean water with rippling surface and light filtering through from above.

Blog

Castle Water CEO warns of additional late payment charges resulting from water industry financial problems.

October 23, 2024

A polluted river with murky water and floating debris, showcasing the consequences of water pollution.

Blog

Unblocktober: Taking action for our sewers and waterways

October 21, 2024

Blog

How does your garden grow? Choosing the right irrigation system

October 18, 2024

Blog

Improve sustainability and water efficiency in hospitality based businesses with Unblocktober

October 14, 2024

Blog

Castle Water’s Trade Effluent Team attend site visit to Thames Water lab and Johnson’s Workwear

September 25, 2024

Water flowing going down drain in stainless steel kitchen sink

Blog

What happens to wastewater when it leaves your premises?

September 16, 2024

Blog

How often should you be changing the water in your hotel swimming pool, spa, and hot tubs?

September 13, 2024

Blog

Where does tap water come from?

September 9, 2024

Glass of water with straw, that looks like a chart

Blog

Castle Water CEO John Reynolds calculates an early estimate of tariff changes in April 2025:

September 9, 2024

Person washing a black car with pressure washer at outdoor car wash station, soap suds covering vehicle surface.

Blog

Why is trade effluent consent required?

September 2, 2024

Blog

Who is responsible for maintaining water meters and taking meter readings?

August 21, 2024

Blog

Open Letter to Ofwat, Panel, CCW, MOSL Aug 2024

August 9, 2024

News

Going green on the green – Castle Water’s sustainable sponsorship at the 2024 Bowls Scotland National Championships

August 7, 2024

Blog

Castle Water CEO John Reynolds needs your input – Ofwat thinks you will be happy with providing financial support to Thames Water – do you agree?

July 31, 2024

Water meter with brass casing installed in grassy area, showing numbered dial readout.

News

Castle Water named top performing large retailer for Market Performance Standards by MOSL

July 15, 2024

a picture of the exterior of an educational building like a school or university

Blog

Ultimate guide to water efficiency for schools and universities

July 3, 2024

Woman's hand taking a blue water bottle from a shelf in a supermarket, with a blurred background.

Blog

How are the biggest food and beverage companies in the UK reducing plastic packaging?

June 17, 2024

Two people at an outdoor event with white tents, vendor booths including Caterama sign. Person on left holding red item.

News

Castle Water Returns as Main Sponsor at The Cateran Yomp for the Sixth Time

May 28, 2024

News

Kitted out for success

May 21, 2024

Blog

Avoid costly hidden leaks in summer

May 8, 2024

Person washing car windshield with blue and white mitt, creating swirling soap patterns on glass surface.

Blog

Broker adds threats to mis-selling!

May 7, 2024

Blog

Castle Water Kiltwalk 2024

April 29, 2024

Blog

Earth Day 2024: Are You Drinking Too Much Plastic?

April 22, 2024

Group of people gathered outside a building for a ribbon-cutting ceremony.

News

Castle Water pledges funds to save local public toilets

April 18, 2024

Blog

From Apprentice to Onboarding Manager

April 15, 2024

Blog

World Water Day 2024

March 22, 2024

Blog

Castle Water: Making A Splash

January 5, 2024

Castle Water and DCC members stood infront of banners highlighting trade effluent and social responsibility

News

Castle Water Unveils Platinum Partnership With Dundee And Angus Chamber Of Commerce.

January 5, 2024

Let’s Take A Look Back At 2023

December 21, 2023

News

Castle Water Celebrates Its 20,000th Trustpilot Review

December 15, 2023

Market Update: Validation That Castle Water Offers Fairer Prices After 5 Other Retailers Identified By CCW Over-Charging For 3 Years

December 6, 2023

Blog

Why We Need To Put The Wiggle Back Into Rivers

November 28, 2023

Castle Water employees on Young Person's Guarantee

News

Castle Water Pledges Its Commitment To The Young Person’s Guarantee

November 24, 2023

Blog

How Are Water Rates Worked Out?

November 15, 2023

News

Team Castle Water Triumphs In Business Fives Tayside Charity Football Event, As Highest Fundraiser For MS Society

September 22, 2023

News

Castle Water Celebrates Success At The 2023 Chamber Business Champion Awards

September 11, 2023

Hollie McCarthy, Sales Graduate, discusses her Castle Water internship

August 25, 2023

News

Castle Water Hydrates The 2023 Bowls Scotland National Championships

August 10, 2023

Water Efficiency Advice For Businesses During A Heatwave

July 31, 2023

Q&A With Castle Water’s Digital And Marketing Intern, Lana Bain

July 27, 2023

3 Ways To Encourage Your Employees To Drink More Water

July 18, 2023

The Industry Giants Taking Action On Water Scarcity

July 5, 2023

Castle Water CEO John Reynolds Looks At The Impact Of A Possible Special Administration Of Thames Water – No Direct Impact On Customers.

June 30, 2023

Blog

Why Pharmaceutical Wastewater Treatment Is Vital For Public Health

June 20, 2023

Castle Water CEO John Reynolds Looks At The Impact Of A Possible Special Administration Of Thames Water – No Direct Impact On Customers.

June 11, 2023

News

Castle Water Supports The Cateran Yomp As The Official Water Sponsor

June 8, 2023

Blog

The Government’s Net Zero Hydrogen Push Is At Risk From Water Shortages – How Can Business Help?

June 6, 2023

Blog

AI’s Relationship With Water: Help Or Hindrance?

May 24, 2023

Blog

Industrial wastewater treatment: expectations vs reality

May 18, 2023

Save Money By Saving Water In The Police Force

May 10, 2023

Blog

Save money by saving water in the education sector

May 3, 2023

How Reservoirs Are Created

April 26, 2023

Why Do Chalk Streams Matter?

April 19, 2023

The Consequences Of Drought On River Businesses

April 11, 2023

Artificial Habitats To Bring Water Quality Benefits In Whitby

March 27, 2023

World Water Day – Accelerating Change

March 22, 2023

Blog

Schemes that farmers should take advantage of

March 21, 2023

Blog

The History Of UK Canals

March 13, 2023

Tap with dripping waterdrop. Water leaking and saving concept.

News

Ofwat Announces The 5 Business Water Retailers That Overcharged Some Customers

March 9, 2023

Castle Water CEO John Reynolds Asks: Are You Paying A Fair Price For Business Water?

February 24, 2023

Should We Drink Water Abroad?

February 7, 2023

News

Castle Water Processes South East Water Goodwill Payments

January 24, 2023

Request From Thames Water For Action From Farmers To Check For Burst Water Pipes

December 23, 2022

News

Update From Southern Water: Loss Of Supply From Testwood Water Supply Works

December 22, 2022

The Amazing History Of Water Engineering

December 20, 2022

Blog

What Effect Is Climate Change Having On The UK’s Seas?

November 22, 2022

The benefits of vertical farming

October 13, 2022

Blog

Effective water management at independent schools

October 6, 2022

News

Castle Water Re-Launches MyAccount

September 21, 2022

The Best Independent Schools For Sustainability

September 8, 2022

Blog

How Water Resilient Are UK Airports?

August 25, 2022

News

Thames Water Announces Hosepipe Ban – What Does It Mean For Your Business?

August 17, 2022

Aqua Parks And Water Quality

August 10, 2022

Castle Water CEO Warns Of Rise In Water Bills From April 2023

August 9, 2022

News

Damning Report Proves It’s Better To Switch Direct For Utilities Than Via Brokers

July 28, 2022

From Toilet To Tap

July 26, 2022

Water Efficiency For The Textile Industry

July 21, 2022

Blog

A Facilities Manager’s Guide To Water

July 11, 2022

News

Market update – Castle Water is the only water retailer fully tackling incorrect wholesale charges

July 1, 2022

Blog

Why It’s Important To Reuse Water

June 30, 2022

News

Castle Water’s CEO Requests Remedial Action On Issues Faced By Sub-Meter Customers

June 22, 2022

Blog

How A New Smart Canal Can Prevent Flooding In Glasgow

June 20, 2022

Blog

Water Neutral Buildings

June 9, 2022

Blog

Coastal Pollution And What The UK Is Doing About It

May 30, 2022

News

SUEZ Recycling and Recovery UK switches more than 200 UK sites to Castle Water

May 27, 2022

Case Study

How Castle Water Saved £6 Million For Customers In 2020 During The Pandemic

May 20, 2022

Drought Resilience Through Innovation

May 19, 2022

Millions Saved For Customers With Free AMR Project

May 19, 2022

Case Study

£13,000 Leak Allowance For Verulam School

April 15, 2022

Blog

How Saving Water Will Help Your Business Reach Net Zero

April 4, 2022

Blog

5 Great Examples Of Water Power

March 31, 2022

Blog

How farmers can help improve water quality

March 28, 2022

Blog

Water Efficiency For Vineyards

March 17, 2022

Blog

What Do Commercial Developers Need To Know About Water Supply?

February 28, 2022

Blog

Why Does The UK Need New Reservoirs?

February 14, 2022

Trade Effluent And Wastewater Treatments For Car Washes And Motor Vehicle Detailing

February 9, 2022

Child in navy polo shirt washing hands at a row of white sinks in a school bathroom with blue wall.

Blog

Can A Business Stay Open Without Running Water?

January 27, 2022

Managing Trade Effluent In The Construction Industry

January 6, 2022

Blog

How to stop underground pipes from freezing

December 23, 2021

Blog

Why farmers must prevent water pollution from runoff in 2025

November 30, 2021

News

Castle Water Wins Customer Service Excellence Award

November 24, 2021

Blog

Managing Trade Effluent in the Farming Industry

November 18, 2021

How AI Can Improve Water Quality

November 2, 2021

Blog

How To Combine Your Business Water And Wastewater

October 28, 2021

Case Study

Halfway And District Bowling Club Recommend Switching To Castle Water

October 27, 2021

News

Castle Water CEO Reveals Plans For Significant Growth And Investment

October 26, 2021

Blog

Are There Nanoplastics In UK Water?

October 26, 2021

The Importance Of Flood Prevention

October 14, 2021

A team of professionals at a desk on laptops

News

Castle Water To Join Experian’s Payment Performance Data Scheme

September 30, 2021

Case Study

Focus Academy Trust Saved £7.5k On Their Water Bill

September 29, 2021

Why Switching Business Water Supplier Is Different To Switching Domestic Water Supplier

September 13, 2021

Blog

How Likely Is The UK To Suffer A ‘Day Zero’ Drought?

September 7, 2021

News

Driving Energy And Water Efficiencies

September 3, 2021

Blog

Water-saving measures in large scale farming

August 12, 2021

News

Statement of account is now on the customer portal

July 28, 2021

How Do I Find Out Who Supplies My Business Water?

July 13, 2021

Blog

How We Serve Customers Identified As Sensitive Sites

July 8, 2021

How Deforestation Affects Water Quality

June 15, 2021

Blog

Why Your Business Water Usage Matters To The Local Environment

May 25, 2021

Blog

History Of The Office Loo

May 5, 2021

Blog

Is there VAT on business water bills?

April 27, 2021

How Do I Know If My Business Water Bill Is Too High?

April 22, 2021

How A Deemed Contract Works, The Key Features And Some Hidden Benefits For Customers In England

April 16, 2021

How To Set Up Your Business Water For The First Time

April 13, 2021

Blog

What Is The Difference Between Wastewater And Trade Effluent

March 19, 2021

Blog

Vacant Commercial Property And Commercial Water Systems

February 9, 2021

News

The Implication Of Ofwat’s Latest Announcement On The Impact Of Covid-19 On The Business Water Market

January 29, 2021

Blog

To Avoid Kissing Any Frogs, Ask These 10 Questions Before You Switch Water Retailer!

January 21, 2021

News

Castle Water CEO John Reynolds’ Update On The Latest Lockdown

January 5, 2021

Case Study

AMR Cuts £40k From Annual Water Bill

November 19, 2020

What Is A Water Audit & Why Does Your Business Need One?

October 13, 2020

News

Castle Water CEO, John Reynolds, Provides An Update On Refunds Resulting From Businesses Temporarily Closing During Lockdown

October 2, 2020

Blog

Golf Courses & Saving Water

September 17, 2020

Blog

How Much Does Business Water Cost?

September 8, 2020

Blog

How to encourage employees to save water at work

August 6, 2020

Is Tap Water Safe For Babies?

June 2, 2020

Why Is Water A Good Solvent?

May 19, 2020

Alkaline Water – Hype Or Healthy?

April 14, 2020

News

Important Update On Ofwat’s Intention To Charge Some Vacant Properties

April 2, 2020

News

What Can You Expect When Your Water Retailer Submits A Service Request (A Bilateral) To A Water Wholesaler On Your Behalf?

March 25, 2020

Castle Water Announces Merger With Affinity For Business

March 11, 2020

Blog

How Storm Éowyn might have impacted your business water systems

February 11, 2020

News

Potential fraud warning

January 21, 2020

Your Questions Answered – Meter Reads

January 15, 2020

Castle Water Awarded ISO 9001 Certification

January 10, 2020

Your Questions Answered – Account & Supply

December 30, 2019

Your Questions Answered – Invoices

December 17, 2019

A Day In The Life Of A… Meter Reader

December 16, 2019

Case Study

Queen Elizabeth’s Grammar School Case Study

November 25, 2019

I Didn’t Choose Castle Water. Why Are You My Retailer?

November 15, 2019

Are We Drinking The Same Water As The Dinosaurs?

October 15, 2019

What Is My Supply Point Identification (SPID) Number?

October 4, 2019

Blog

Whose Leak Is It Anyway? Understanding Leak Responsibility

August 20, 2019

Water Retailers And Water Wholesalers – What’s The Difference?

July 12, 2019

6 Questions You Should Ask Your Business Water Retailer

July 9, 2019

Case Study

Emergency Water Case Study

July 5, 2019

Case Study

Swindon Borough Council Case Study

June 26, 2019

Blog

The Solution To Washing Machine Water Efficiency Could Be A Load Of Balls

June 25, 2019

News

Castle Water Sponsors The Ardblair Stones

June 3, 2019

Case Study

Procure North Yorkshire Case Study

May 23, 2019

Is Bottled Water Healthier Than Tap Water?

May 14, 2019

In Search Of Purity – Which Country Has The Cleanest Tap Water?

March 12, 2019

The Best Things In Life Are Free… Right?

March 5, 2019

Case Study

University Of Central Lancashire Case Study

February 28, 2019

Motherwell FC

February 27, 2019

Blog

Manna From Heaven – Can My Business Use Rainwater?

February 19, 2019

Which Makes The Better Cup Of Tea – Hard Or Soft Water?

February 5, 2019

Blog

Mine’s A Pint… Or About 170 Litres Of Water

January 4, 2019

News

Water Retailers Are Conspiring To Undermine The Position Of Customers

July 24, 2018

News

Castle Water Announces Acquisition Of Invicta Water

May 15, 2018

News

Castle Water Opens New London Offices

October 13, 2017

News

Castle Water Announces Acquisition Of Cobalt Water

June 14, 2017

News

‘Utility Week’ Interviews Castle Water’s Chief Executive, John Reynolds OBE

November 25, 2016

News

Castle Water appointed to provide services to business customers of Thames Water

July 18, 2016

Case Study

Bradfield College Case Study

August 26, 0018

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