Hard water solutions in Kent
Kent has very hard water. Here is what that does to your home, what genuinely fixes it, what only appears to, and who can fit it locally.
Very hard
South East Water, Southern Water, SES Water, Affinity Water
Water in Kent
- Kent sits on the North Downs chalk and has some of the hardest water in the country, commonly 280 to 340 mg/l CaCO₃.
- Four different companies supply parts of Kent, so 'Kent water' is not one thing — but all four supply hard or very hard water, which makes the county unusually consistent in its practical advice.
- Kent is arguably the strongest water softener market in the UK per household, and there is a correspondingly deep pool of installers who fit them as routine work.
- The county's large stock of oast houses, farmhouses and rural properties includes a meaningful number on private supplies, where UV treatment and sediment filtration become relevant in ways they are not in town.
- Boiler manufacturers' warranty conditions relating to hard water are triggered across essentially the whole county, which is why scale inhibitors are fitted here almost as a default at boiler installation.
You have very hard water — among the hardest in the UK.
Limescale will be a constant in your home and a real cost in appliance life. A water softener is genuinely worth the investment here and most households who fit one notice the difference within days. At the very least, protect the boiler.
Who supplies Kent
Water company boundaries do not follow council boundaries. Check your postcode for the supplier at your address.