Professionally treated water, for your business & home.
Water treatment and commercial drinking water, from filtration, softening, reverse osmosis and UV to mains-fed taps and dispensers, specified to your water, installed by experts and kept running with smart aftercare.
Sovereign Water
One standard of water, for every setting.
From a single home kitchen to a multi-site restaurant group, we engineer the right system for your water, your space and your throughput.
Home
Softer water, cleaner appliances and great-tasting drinking water on tap, without plastic bottles or scale damage.
CrownGuard home systems →Commercial
Compliant treatment plus mains-fed drinking-water dispensers for hotels, offices and facilities, protecting equipment and keeping people hydrated.
Commercial solutions →Food & Beverage
Consistent water for coffee, ice and steam, plus filtered still and sparkling for front of house, the right setup for espresso machines, combi ovens and dispensers.
Foodservice solutions →From treatment to the tap.
Five product lines plus aftercare, from filtration and softening to RoyalFlow drinking taps, built to work together as one Sovereign system.
Drinking tapsPremium instant taps for boiling, chilled, sparkling and ambient filtered water, in seven faucet styles for home or office.
Home systemsAll-in-one home systems guarding every tap, softened, filtered water from the moment it enters the house.
Reverse osmosisUltra-pure water for drinking, coffee and labs, removing up to 99.9% of dissolved solids at the membrane.
SofteningStops limescale at source, protecting boilers, kettles and showers, and giving softer skin and brighter laundry.
FiltrationMulti-stage filters that strip out chlorine, sediment and off-tastes while protecting downstream equipment.
AftercarePlanned filter changes and remote monitoring keep your system performing, and your warranty intact.
Filtered water on tap. No more bottles.
We don't just treat water behind the scenes. We also supply, plumb in and maintain commercial drinking-water systems for offices, hotels and foodservice across the UK, mains-fed taps and dispensers from the world's leading brands.
- Mains-fed taps and dispensers: boiling, chilled, sparkling and ambient
- Sleek countertop and floor-standing units for offices, hotels and venues
- Hygienic, filtered water that ends single-use plastic and bottle deliveries
- Paired with our own softening, RO and UV, and serviced under Comprehensive Maintenance
Why treat your water in the UK?
British tap water is among the safest in the world. But across most of southern and eastern England it is also very hard, and hardness is what costs your business money.
Where British water actually comes from
UK mains water starts as rainfall. Around 60% of England's supply comes from surface water (rivers and reservoirs) and roughly a third from underground aquifers. What happens next depends on the rock it passes through: rain filtering through chalk and limestone dissolves calcium and magnesium. That is hard water, and it defines supply across London, the South East and East Anglia.
Source: Drinking Water Inspectorate, Drinking Water Quality in England triennial report (2020–2022).
Hard water is a business cost, not an inconvenience
London sits on the Thames chalk basin, with some of the hardest water of any major city in Europe; Cambridge, Ipswich, Norwich and Peterborough are comparable. In a kitchen, café or office, that hardness comes out as limescale on every heating element you own. Scale is an insulator: a coated boiler, dishwasher, combi oven, ice machine or espresso head works harder, fails sooner and costs more to run.
The right treatment depends on the job
There is no single answer, and anyone who says otherwise is selling you something. Softening protects heating equipment, filtration handles taste, chlorine and particulates, reverse osmosis goes further for coffee and food production, and UV disinfects without chemicals. What your site needs depends on your supply, equipment and what you produce. That is a specification job, not a shopping decision, and it is what we do.
Inside a multi-stage treatment system.
A commercial system is a sequence, not a single box. Each stage does one job, and what you need depends on what your mains supply arrives carrying.
Sovereign Water
- 01
Pre-filter
Sediment / cotton-woundCatches sand, silt, rust and scale particles down to around 5 microns, protecting every stage downstream from clogging and wear.
- 02
Activated carbon
Taste & chlorineStrips chlorine, chloramine and odours, removing the off-tastes municipal water carries and shielding the RO membrane that follows.
- 03
Softener
Scale protectionIon-exchange removes the calcium and magnesium that make water hard, stopping limescale in boilers, espresso machines and ice makers.
- 04
Reverse osmosis
Ultra-pure waterA semi-permeable membrane removes up to 99% of dissolved solids, giving the clean, neutral base water baristas need for consistent extraction.
- 05
Remineralisation
Balanced for tasteAdds back a controlled balance of minerals for flavour, pH and crema, turning flat RO water into perfectly profiled water for coffee and food.
Built for every sector.
From cafés and offices to clinics and hotels, we match the right treatment and drinking-water systems to each setting. Here's what we would typically specify.
Cafés, restaurants & roasteries
Consistent, scale-free water for espresso, ice and steam, so flavour stays the same and equipment lasts.
Offices & facilities
Great-tasting filtered water on tap for staff and visitors, ending crates of bottled water.
Hotels, facilities & industry
Compliant, reliable water across commercial sites, kept performing with planned maintenance.
Your water, monitored, so you never have to think about it.
A maintenance subscription that tracks filter life and performance, schedules service before problems arise, and keeps your warranty valid.
- Automatic filter-change reminders & delivery
- Remote performance monitoring across all sites
- Priority engineer call-out & valid warranty
Why you may need to treat your water.
Water quality varies by location and source, impacting taste, safety and equipment. A few of the questions we hear most.
QWhat do you recommend for coffee shops?
QCan I fit reverse osmosis under my sink?
QDo you supply office water dispensers?
QHow often should filters be changed?
QAre products designed and made in the UK?
QDo you support multiple locations?
QDo you work across the Gulf?
QIs filtered tap water as good as bottled?
Let's find the right system for your water.
Tell us about your home or business and we'll recommend a tailored solution, no obligation, no jargon.