Berkshire · South East

Is Iver water hard or soft?

Hard at 291 ppm · 10 postcode districts

  • Supplier Thames Water
  • County Berkshire
  • Postcodes 10
Area average
291
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+

The average water hardness in Iver is 291 ppm, classified as hard. Iver is served by Thames Water, covering 10 postcode districts across Berkshire in the South East region.

Hardness varies across the area — see the table below for a breakdown by postcode district.

By postcode

Water Hardness by Postcode in Iver

Sorted by hardness — tap a postcode for full details.

Postcode Water Company Hardness PPM Level
SL3 Thames Water
350
350 ppm Very Hard
SL2 Thames Water
349
349 ppm Very Hard
SL1 Thames Water
348
348 ppm Very Hard
SL0 Thames Water
347
347 ppm Very Hard
SL9 Thames Water
255
255 ppm Hard
SL8 Thames Water
254
254 ppm Hard
SL7 Thames Water
253
253 ppm Hard
SL6 Thames Water
252
252 ppm Hard
SL5 Thames Water
251
251 ppm Hard
SL4 Thames Water
250
250 ppm Hard
Suppliers

Water Companies Serving Iver

Tap for full coverage area and hardness data.

Thames Water

302 ppm Very Hard

Water Hardness Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal
Recommended

Products for Iver

Popular choices for households dealing with hard water.

Water2Buy W2B200 Water Softener

From ~£400

Best-value whole-house ion-exchange softener for UK homes. Eliminates limescale from pipes, boilers, and appliances. Digital metered regeneration — low salt use. 7-year warranty.

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Philips AWP1775 Shower Filter

From ~£30

Quick win for skin and hair in hard water areas. Reduces chlorine and limescale — fits standard shower hoses in minutes, no tools needed. Cartridge lasts ~6 months.

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BRITA Marella Water Filter Jug

From ~£20

UK's best-selling filter jug. Reduces limescale, chlorine, and metals for better-tasting tap water. Quick first step alongside a softener.

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Get Iver Water Updates

Be notified when water companies in Iver report changes to hardness levels.