341mg of limescale minerals in every litre, the median across NG districts
Is Nottingham a hard water area?
Yes. Tap water across the NG postcode area is very hard, the top band on the scale water companies use, with a median of 341 mg/L calcium carbonate. It ranges from 230 mg/L in NG31 to 356 mg/L in NG34, from 4 districts with their own water company reading and 25 estimated from the area.
- Soft
- 0 to 60 mg/L
- Moderately soft
- 60 to 120 mg/L
- Slightly hard
- 120 to 180 mg/L
- Hard
- 180 to 200 mg/L
- Very hard
- 200 to 400 mg/L
Hardness by NG district
Hardest first. Hard starts at 180 mg/L, very hard at 250. Districts marked with an asterisk take the area's median rather than a reading of their own.
| District | Area | mg/L | Hardness |
|---|---|---|---|
| NG34 | North Kesteven | 356 | very hard |
| NG32 | South Kesteven | 341 | very hard |
| NG2* | Rushcliffe | 341 | very hard |
| NG4* | Gedling | 341 | very hard |
| NG7* | Nottingham | 341 | very hard |
| NG10* | Erewash | 341 | very hard |
| NG11* | Nottingham | 341 | very hard |
| NG16* | Broxtowe | 341 | very hard |
| NG17* | Ashfield | 341 | very hard |
| NG22* | Newark and Sherwood | 341 | very hard |
| NG24* | Newark and Sherwood | 341 | very hard |
| NG25* | Newark and Sherwood | 341 | very hard |
| NG33 | South Kesteven | 341 | very hard |
| NG13* | Rushcliffe | 341 | very hard |
| NG1* | Nottingham | 341 | very hard |
| NG3* | Nottingham | 341 | very hard |
| NG5* | Nottingham | 341 | very hard |
| NG6* | Nottingham | 341 | very hard |
| NG8* | Nottingham | 341 | very hard |
| NG9* | Broxtowe | 341 | very hard |
| NG12* | Rushcliffe | 341 | very hard |
| NG14* | Newark and Sherwood | 341 | very hard |
| NG23* | Newark and Sherwood | 341 | very hard |
| NG15* | Ashfield | 341 | very hard |
| NG18* | Mansfield | 341 | very hard |
| NG19* | Mansfield | 341 | very hard |
| NG20* | Mansfield | 341 | very hard |
| NG21* | Gedling | 341 | very hard |
| NG31 | South Kesteven | 230 | hard |
What to do about it
Hard water: compare softener quotes
At 341 mg/L most NG homes get their money back on a softener within a few years. A filter will not touch limescale; only a softener does.
- Free quotes
- Local installers
- No obligation
Check your own district first
The area figure is a median. Your district can sit anywhere between 230 and 356 mg/L.
Softener quotes for Nottingham
At 341 mg/L most NG homes get their money back on a softener within a few years. Free quotes from installers covering your postcode.
Request a free assessment and we'll come back to you with local installer options for your area.
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Before you buy
- Do I need a water softener?The hardness bands, the symptoms, and when the answer is no
- Best water softener UKHarvey, Kinetico, BWT, Monarch and Water2Buy compared
- Water softener costUnit, fitting and salt, and how long the payback takes
- Installation explainedWhere it goes, the bypass tap, the drain, DIY or plumber
- Harvey vs KineticoThe two premium twin-cylinder brands, side by side
- Softener salt guideTablet, block or granular, and how much you get through
- Salt-free softenersConditioners and electronic descalers, honestly assessed
Questions about Nottingham water
Is Nottingham a hard water area?
Yes. The median hardness across NG postcode districts is 341 mg/L calcium carbonate, which is very hard. 100% of the 29 districts we hold readings for are hard or very hard (180 mg/L and above).
What is the water hardness in Nottingham?
Between 230 and 356 mg/L depending on the district, with a median of 341. The hardest measured district is NG34 at 356 mg/L and the softest is NG31 at 230. Figures come from water company drinking-water tests, with postcode-area estimates for districts that have no reading of their own.
Do I need a water softener in Nottingham?
In most NG homes a softener pays for itself: at 341 mg/L kettles, boilers and showers scale up quickly. Check your own district first, because hardness varies from 230 to 356 within the area.
Hardness as mg/L calcium carbonate from water company drinking-water tests and postcode checkers. See the UK hardness map for every area.