Sutton and East Surrey Water Services Limited (trading as SES Business Water). Pennon Group plc (acquisition of the SES Water group completed 10 January 2024).
England & ScotlandAt a glance
SES Business Water is the business water retail brand of Sutton and East Surrey Water Services Ltd, owned by Pennon Group since January 2024, supplying water and wastewater retail services to businesses across England and Scotland from Redhill, Surrey.
Last reviewed 10 June 2026. Facts are drawn from SES Business Water's own published pages, Companies House and the MOSL dashboard snapshot (March 2026). Verify anything you intend to rely on against the current source.
Taken from the retailer's own published service pages.
When a site takes supply without a negotiated contract, for example after moving in or letting an agreement lapse, the retailer bills on its published deemed or out-of-contract terms, which differ by wholesale region and are updated each charging year. We never republish the figures: they change annually, so the only reliable source is the current document.
SES Business Water publishes its deemed and out-of-contract terms in its own charges documents, linked below. Check the document for your wholesaler region and charging year before comparing it against a negotiated offer.
SES Business Water is the trading name under which Sutton and East Surrey Water Services Limited (Companies House 02446416, registered in Redhill, Surrey) supplies retail water and wastewater services to business customers. It grew out of the SES Water group, the regulated wholesaler for parts of Surrey, Kent, West Sussex and south London, and entered Scotland's competitive market in 2016 (WICS water and sewerage licences granted in February 2016) before England's business retail market opened in April 2017. It now supplies customers across England and Scotland, citing sectors from high street retail, supermarkets, hospitality and leisure to local and national government, the NHS, independent schools, manufacturing, food processing and an international airport.
Ownership changed on 10 January 2024, when Pennon Group plc, the FTSE-listed owner of South West Water, Bristol Water and Bournemouth Water, completed its acquisition of the SES Water group from Sumitomo Corporation and Osaka Gas. Within Pennon, retail activity sits under Ian Cain, appointed group CEO Retail & Customer Markets in July 2025, and SES Business Water operates alongside the group's other business retail interests: Source for Business (Pennon Water Services) and a 30% stake in water2business. No dedicated managing director is publicly named for the SES Business Water brand itself.
The published proposition centres on multi-site simplicity and bill accuracy: one consolidated e-invoice across all meters and sites, e-billing, Direct Debit and monthly payment plans, smart metering to flag leakage and unexplained consumption, Wholesale Tracker Plus pricing for larger users, and a charges health check that forensically audits historic bills and recovers overcharges from previous suppliers. Buyers should weigh this against the retailer's complaints record: CCW's Business Customer Complaints 2024-25 report found it the worst performing retailer per 10,000 SPIDs, citing a gap-site backlog and debt collection activity. Deemed contract terms for the SES Water area, currently the 2026-2027 document, are published on its website.
Frequently asked
SES Business Water is owned by Pennon Group plc, the FTSE-listed owner of South West Water, Bristol Water and SES Water. Pennon completed its acquisition of the SES Water group, including Sutton and East Surrey Water Services Limited (which trades as SES Business Water and SES Home Services), from Sumitomo Corporation and Osaka Gas on 10 January 2024. The two Japanese groups had jointly owned the SES group since 2013.
SES Business Water publishes its deemed contract terms and charges on its own website, with the current document for the SES Water wholesale area covering 2026-2027; we link to that published page from this page. Deemed rates apply when a business uses water and wastewater services without a signed contract, typically after moving into new premises, and are generally less favourable than negotiated terms. Check the current document on the SES Business Water site, or speak to a broker, before settling on deemed terms.
SES Business Water supplies business customers across England and Scotland. It holds a water supply licence from Ofwat for the English market and water and sewerage licences from the Water Industry Commission for Scotland, granted in February 2016. It began trading in Scotland's open market in 2016, a year before England's business retail market opened in April 2017, and serves sectors from high street retail and hospitality to the NHS, schools and manufacturing.
You can call SES Business Water on 0203 750 9300, with lines open 9am to 5pm, Monday to Friday, or email query@sesbusinesswater.co.uk. Its postal address is SES Business Water, 66-74 London Road, Redhill, Surrey, RH1 1LJ. The website also offers a callback request form for existing and prospective customers, an online meter reading submission service, and a separate emergency contacts page listing wholesaler details.
Yes, multi-site supply is a core part of SES Business Water's published offer. It provides one consolidated e-invoice covering all meters on all sites, handles switching for portfolios spread across different incumbent suppliers, and offers e-billing, Direct Debit and monthly payment plans. Larger users can also access its Wholesale Tracker Plus pricing, smart metering to identify leakage and unexplained usage, and a charges health check that audits historic bills for overcharges.
Your water would keep flowing and your account would move to another retailer automatically. In England's business retail market, Ofwat's interim supply arrangements allocate the customers of a failed or exiting retailer to an alternative licensed retailer, and customers do not need to take any action. Scotland's competitive market has equivalent protections under its own framework. Once transferred, you would be free to negotiate a new contract or switch retailer again.
SES Business Water is a trading name of Sutton and East Surrey Water Services Limited, company number 02446416, registered in England and Wales at 66-74 London Road, Redhill, Surrey, RH1 1LJ. The company was incorporated in November 1989 and also trades as SES Home Services. It holds the Ofwat water supply licence for the English market and the WICS water and sewerage licences for Scotland under which the retail business operates.
Poorly, according to the water watchdog's most recent published data. CCW's Business Customer Complaints 2024-25 report, published in July 2025, found SES Business Water 'continues to be the worst performing retailer per 10,000 SPIDs', recording 18.7 complaints per 10,000 supply points escalated to CCW. CCW attributed this to a backlog of uninvestigated gap sites and increased debt collection activity. It also had the highest complaint rate of any retailer in the 2023-24 report.
We are an independent broker, not the retailer. When you tender through us, SES Business Water is quoted against the whole licensed Open Water retailer panel, with the wholesale charge, retailer margin and our margin shown separately on every offer. No retailer pays for placement on this page and this profile is not a ranking. Our guide to how to compare business water suppliers covers the criteria we score offers on, and our step-by-step guide to switching business water supplier walks through the CMOS process, with no interruption to supply.
Send us a recent bill per site. We tender the licensed Open Water retailer panel and come back with the best fit, with the wholesale charge, retailer margin and our margin shown separately on every quote. Or call us on 0161 521 3400.
Get a business water quote