Hertfordshire · South East

Is St Albans water hard or soft?

Hard at 244 ppm · 10 postcode districts

  • Supplier Affinity Water
  • County Hertfordshire
  • Postcodes 10
Area average
244
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+

The average water hardness in St Albans is 244 ppm, classified as hard. St Albans is served by Affinity Water, covering 10 postcode districts across Hertfordshire 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 St Albans

Sorted by hardness — tap a postcode for full details.

Postcode Water Company Hardness PPM Level
AL10 Affinity Water
254
254 ppm Hard
AL9 Affinity Water
247
247 ppm Hard
AL8 Affinity Water
246
246 ppm Hard
AL7 Affinity Water
245
245 ppm Hard
AL6 Affinity Water
244
244 ppm Hard
AL5 Affinity Water
243
243 ppm Hard
AL4 Affinity Water
242
242 ppm Hard
AL3 Affinity Water
241
241 ppm Hard
AL2 Affinity Water
240
240 ppm Hard
AL1 Affinity Water
239
239 ppm Hard
Suppliers

Water Companies Serving St Albans

Tap for full coverage area and hardness data.

Affinity Water

268 ppm 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 St Albans

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.

View on Amazon

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.

View on Amazon

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.

View on Amazon

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