Yorkshire Water water hardness
Ranges from soft to hard across the supply area.
Yorkshire Water supplies water ranging from soft to hard across its area, so the figure for your own postcode is worth checking.
Hard water is mainly found in the east of the region, whereas softer water tends to be found in the west, where the landscape is more moorlands than chalk and limestone.
Yorkshire Water, on their own website, source — checked 2026-08-24
Wide spread. Pennine reservoir supplies in the west are soft; chalk and limestone sources towards the east and the Wolds are considerably harder. Leeds and Sheffield differ from Hull.
What this means for your home
Your water is slightly hard — barely enough to notice.
You may see a faint film in the kettle over months rather than weeks. A softener is very hard to justify at this level, and scale protection on a new boiler is optional rather than sensible. Any filtration you buy here should be about taste and chlorine.
Where Yorkshire Water supplies
Regions: Yorkshire and the Humber
Counties and areas: West Yorkshire, South Yorkshire, North Yorkshire, East Riding of Yorkshire
Supply boundaries do not follow county boundaries, and several companies may supply parts of the same county. Always check your own postcode.