WaterHard.uk

Is Hemel Hempstead Water Hard or Soft?

Hard at 288 ppm • Hertfordshire, South East

288 PPM 0 200 400
Hard

The average water hardness in Hemel Hempstead is 288 ppm, classified as hard. Hemel Hempstead is served by Thames Water, covering 24 postcode districts across Hertfordshire in the South East region.

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

Water Hardness by Postcode in Hemel Hempstead

Postcode Water Company Hardness PPM Level
HP9 Thames Water
326 ppm
326 ppm Very Hard
HP8 Thames Water
325 ppm
325 ppm Very Hard
HP7 Thames Water
324 ppm
324 ppm Very Hard
HP6 Thames Water
323 ppm
323 ppm Very Hard
HP5 Thames Water
322 ppm
322 ppm Very Hard
HP4 Thames Water
321 ppm
321 ppm Very Hard
HP3 Thames Water
320 ppm
320 ppm Very Hard
HP2 Thames Water
319 ppm
319 ppm Very Hard
HP1 Thames Water
318 ppm
318 ppm Very Hard
HP27 Thames Water
292 ppm
292 ppm Hard
HP23 Thames Water
288 ppm
288 ppm Hard
HP22 Thames Water
287 ppm
287 ppm Hard
HP21 Thames Water
286 ppm
286 ppm Hard
HP20 Thames Water
285 ppm
285 ppm Hard
HP19 Thames Water
261 ppm
261 ppm Hard
HP18 Thames Water
260 ppm
260 ppm Hard
HP17 Thames Water
259 ppm
259 ppm Hard
HP16 Thames Water
258 ppm
258 ppm Hard
HP15 Thames Water
257 ppm
257 ppm Hard
HP14 Thames Water
256 ppm
256 ppm Hard
HP13 Thames Water
255 ppm
255 ppm Hard
HP12 Thames Water
254 ppm
254 ppm Hard
HP11 Thames Water
253 ppm
253 ppm Hard
HP10 Thames Water
252 ppm
252 ppm Hard

Water Companies Serving Hemel Hempstead

Thames Water

Average hardness: 302 ppm (Very Hard) • 412 postcodes served

Water Hardness Guides

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal

Recommended Products for Hemel Hempstead

Popular choices for households dealing with hard water in this area.

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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