WaterIs Iver Water Hard or Soft?
Hard at 291 ppm • Berkshire, South East
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.
Water Hardness by Postcode in Iver
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| SL3 | Thames Water | 350 ppm | Very Hard | |
| SL2 | Thames Water | 349 ppm | Very Hard | |
| SL1 | Thames Water | 348 ppm | Very Hard | |
| SL0 | Thames Water | 347 ppm | Very Hard | |
| SL9 | Thames Water | 255 ppm | Hard | |
| SL8 | Thames Water | 254 ppm | Hard | |
| SL7 | Thames Water | 253 ppm | Hard | |
| SL6 | Thames Water | 252 ppm | Hard | |
| SL5 | Thames Water | 251 ppm | Hard | |
| SL4 | Thames Water | 250 ppm | Hard |
Water Companies Serving Iver
Water Hardness Guides
Recommended Products for Iver
Popular choices for households dealing with hard water in this area.
Water2Buy W2B200 Water Softener
From ~£400Best-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 AmazonPhilips AWP1775 Shower Filter
From ~£30Quick 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 AmazonBRITA Marella Water Filter Jug
From ~£20UK's best-selling filter jug. Reduces limescale, chlorine, and metals for better-tasting tap water. Quick first step alongside a softener.
View on AmazonGet Water Hardness Updates
Be notified when your water company reports changes to hardness levels.