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Our expert guide to Everflow Water
Everflow Water is a licensed water retailer supplying businesses across England and Scotland. It was one of the first independent retailers to enter the market following deregulation in 2017 and has since grown rapidly by focusing on competitive pricing and transparent billing.
Unlike default regional suppliers, Everflow Water is not automatically assigned to any business. If your company is with Everflow Water, it means an occupier of your property has previously decided to switch to Everflow Water.
Everflow Water offers the UK’s first 100% carbon-offset water supply, meaning the emissions linked to providing your water are offset through investing in environmental projects. This makes it a notable option for businesses looking to reduce the carbon impact of their business operations.
Enter your postcode above to compare Everflow Water with other business water suppliers and see which options are available in your area.
Everflow Water customer service
Here’s how to reach Everflow Water’s customer support team:
Everflow Water contact number
You can reach Everflow Water by calling 0330 6600 137. Their customer service team is available Monday to Friday, from 8am to 5pm, excluding public holidays.
Everflow Water login
Everflow Water customers can manage their account through the online Everflow Water Customer Portal. It allows you to view bills, update account details, submit meter readings, and monitor your water usage.
Everflow Water email
Everflow Water customers can contact the customer service team by emailing customer.services@everflowutilities.com for support, complaints, or general enquiries.
Everflow Water prices
Everflow Water does not publish its business water rates on its website.
To get a personalised quote, you can contact Everflow Water directly or use our compare business water prices service to request quotes from Everflow Water and other trusted suppliers.
Business water tariffs depend on several factors, including your location and your business water consumption.
Everflow Water’s customer base and market position
As of early 2025, Everflow Water serves over 110,000 business customers across England and Scotland, marking a 16% increase since 2024.
Unlike some larger suppliers, Everflow Water does not hold default retailer status in any region. Its growth has been driven entirely by businesses choosing to switch, attracted by transparent pricing, simplified billing, and a customer-centric approach.
Everflow Water has become the fifth-largest water retailer in the UK, overtaking two incumbent suppliers. Its customer base primarily comprises small and medium-sized enterprises (SMEs), and the company maintains a high customer retention rate of approximately 98%.
Everflow Water tariffs
Everflow Water offers two types of tariffs: fixed-term contracts and deemed rates. Tariffs are set out in the published charging statement and vary depending on the agreement in place.
Fixed-term contracts
Most customers are on fixed-term contracts with an agreed retail fee for the duration of the agreement. This helps businesses manage costs and avoid unexpected changes to their water charges.
Deemed contracts
If a fixed-term contract ends without a new agreement in place, the account moves onto a deemed contract. These are usually more expensive than fixed rates and apply until a new contract is signed or you switch business water suppliers.
Everflow Water contract features
Everflow Water’s fixed-term contracts include practical terms and conditions that help businesses manage payments, stay on top of usage, and avoid unnecessary charges.
Advanced billing
Everflow uses an advanced billing system, where customers are billed at the start of each month based on estimated usage. Once actual meter readings are received, any differences are corrected in future invoices. This helps businesses manage cash flow with more predictable billing, while still ensuring accuracy over time.
Payment methods
Everflow Water requires payment by Direct Debit for most customers. If the Direct Debit fails or is cancelled, the customer remains responsible for making payment by another method. Missed payments may lead to the removal of discounts or added charges.
End of contract and renewals
Everflow Water notifies customers 90 days before their contract ends. To avoid automatic renewal, notice must be given during the final 120 days. If no notice is received, the contract renews for another 12 months. Early termination may incur charges unless the customer is a microbusiness.
Credit checks and deposits
Everflow Water may carry out credit checks when an account is set up or during the contract. A security deposit can be requested if a customer has a limited credit history or past payment issues. This deposit is refundable once the account is settled in full.
Non-payment and disconnection
Everflow Water may begin debt recovery proceedings if bills remain unpaid and a formal disconnection warning is issued. Services can be disconnected as a last resort, with reconnection subject to additional fees.
Meter access and responsibility
Customers are responsible for allowing Everflow Water or its agents safe and reasonable access to their business water meter for readings and maintenance. If access is denied, estimated billing may continue, and further steps could be taken to enforce access rights.
Backbilling and undercharging
If previous usage was undercharged or missed, Everflow Water may issue a backdated bill. In line with market rules, backbilling is limited to a maximum of 16 months unless the customer has prevented access or supplied false information.
Switching supplier
Customers are free to switch suppliers at the end of their contract. However, Everflow Water may object to a switch if any invoices are more than 90 days overdue. All charges must be paid before a transfer can be completed.
How to get a Everflow Water quote
At AquaSwitch, we help businesses compare business water suppliers by providing clear information on pricing, service features, and contract terms. Our simple three-step process lets you compare Everflow Water with other leading providers across the market.
Enter your postcode
Start by entering your business postcode above and a few simple details about your business.
Compare prices
Review quotes from Everflow Water and other business water suppliers to find the best rates and contract terms for your needs.
Switch and save
Once you’ve found the right deal, you can switch business water supplier quickly and easily, ensuring you get competitive rates and the right service for your business.
Everflow Water additional services
Everflow Water offers various environmental services to help businesses use water more efficiently, lower their environmental impact, and ensure long-term operational compliance. These services support cost control and responsible resource management across single and multi-site operations.
Water efficiency audits
Everflow Water carries out detailed water efficiency audits to help businesses identify high-usage areas, leaks, or inefficiencies. These audits can lead to practical changes that lower water bills without disrupting operations.
Leak detection and repair
Using specialised equipment and analysis, Everflow Water helps identify and fix leaks within business premises. Their leak detection service supports both short-term cost savings and long-term infrastructure health.
Smart metering and monitoring
Everflow Water offers water loggers that help businesses understand their water usage in more detail. These insights can support cost control, early leak detection, and better decision-making around water consumption.
Product installation and fittings
Everflow Water can support businesses with the installation of water-saving devices and fittings, helping reduce waste and meet efficiency goals.
Everflow Water customer reviews
Everflow Water has an excellent Trustpilot rating of 4.7, based on verified feedback from business customers across the UK. Reviews reflect a largely positive experience, particularly around customer service and ease of use, with some suggestions for improvement.
Pros
- Helpful customer service: Many reviewers describe the support team as friendly, knowledgeable, and easy to deal with.
- Straightforward setup: Customers often highlight how easy it is to get started, with minimal admin or delays.
- User-friendly platform: The online portal is frequently praised for being clear and easy to navigate.
Cons
- Estimated readings: Some users report receiving estimated bills despite submitting meter readings.
- Renewal communication: A few customers mention they’d prefer more proactive reminders ahead of contract renewal dates.
- Telephone wait times: There are occasional mentions of long wait times when contacting customer support by phone.