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tapwater

297mg of limescale minerals in every litre, the median across PE districts

Is Peterborough a hard water area?

Yes. Tap water across the PE postcode area is very hard, the top band on the scale water companies use, with a median of 297 mg/L calcium carbonate. It ranges from 200 mg/L in PE25 to 384 mg/L in PE9, from 34 districts with their own water company reading and 2 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 PE 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.

DistrictAreamg/LHardness
PE9South Kesteven384very hard
PE11South Holland379very hard
PE10South Kesteven379very hard
PE6South Kesteven379very hard
PE20Boston350very hard
PE21Boston350very hard
PE22Boston350very hard
PE32King's Lynn and West Norfolk347very hard
PE37Breckland347very hard
PE23East Lindsey344very hard
PE36King's Lynn and West Norfolk331very hard
PE12South Holland325very hard
PE30King's Lynn and West Norfolk307very hard
PE31King's Lynn and West Norfolk305very hard
PE35King's Lynn and West Norfolk300very hard
PE33King's Lynn and West Norfolk298very hard
PE34King's Lynn and West Norfolk298very hard
PE27*Huntingdonshire297very hard
PE26*Huntingdonshire297very hard
PE14King's Lynn and West Norfolk295very hard
PE13Fenland295very hard
PE38King's Lynn and West Norfolk295very hard
PE28Huntingdonshire288very hard
PE19Huntingdonshire258very hard
PE29Huntingdonshire258very hard
PE2Peterborough232hard
PE7Huntingdonshire232hard
PE5Peterborough232hard
PE8North Northamptonshire232hard
PE1Peterborough227hard
PE3Peterborough227hard
PE4Peterborough223hard
PE16Fenland220hard
PE15Fenland220hard
PE24East Lindsey200hard
PE25East Lindsey200hard

What to do about it

Hard water: compare softener quotes

At 297 mg/L most PE 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
Get softener quotesDo I actually need one?

Check your own district first

The area figure is a median. Your district can sit anywhere between 200 and 384 mg/L.

Softener quotes for Peterborough

At 297 mg/L most PE 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

Nearby areas

Cambridge 330Lincoln 264Northampton 225Nottingham 341Stevenage 319Norwich 348

Questions about Peterborough water

Is Peterborough a hard water area?

Yes. The median hardness across PE postcode districts is 297 mg/L calcium carbonate, which is very hard. 100% of the 36 districts we hold readings for are hard or very hard (180 mg/L and above).

What is the water hardness in Peterborough?

Between 200 and 384 mg/L depending on the district, with a median of 297. The hardest measured district is PE9 at 384 mg/L and the softest is PE25 at 200. 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 Peterborough?

In most PE homes a softener pays for itself: at 297 mg/L kettles, boilers and showers scale up quickly. Check your own district first, because hardness varies from 200 to 384 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.