WaterHard.uk

Water Hardness in UB5 Northolt

Supplied by Thames Water • Greater London, London

281 PPM 0 200 400
Hard
281
ppm (mg/L CaCO₃)
19.7°
Clark Degrees
15.7°
German Degrees (dH)
28.1°
French Degrees (fH)

Water Hardness in Northolt (UB5)

The water in postcode district UB5 is classified as hard with a hardness level of 281 ppm (parts per million) calcium carbonate. This is 74 ppm above the UK national average of 207 ppm.

Your water is supplied by Thames Water, which serves the London region. Thames Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.

What Does Hard Water Mean for Your Home?

  • ! Significant limescale buildup in kettles, pipes and boilers
  • ! Soap scum on shower screens and taps
  • ! Higher energy bills from scale in heating elements
  • ! Dry skin and dull hair after washing
  • ! White residue on dishes and glassware

Solutions for Hard Water in Northolt

At 281 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

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, suits 1–4 people.

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Philips AWP1775 Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead — no plumbing needed. KDF filtration, cartridge lasts ~6 months. A great first step in a hard water area.

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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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How UB5 Compares

Area Hardness PPM
UB5 Northolt
281 ppm
281 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

UB4
Hayes
280 ppm
UB6
Greenford
282 ppm
UB7
West Drayton
283 ppm

Frequently Asked Questions

What is the water hardness in UB5 Northolt?
The water in UB5 Northolt has a hardness level of 281 ppm (parts per million) calcium carbonate, classified as hard. This is 74 ppm above the UK national average of 207 ppm.
Which water company supplies UB5?
UB5 Northolt is supplied by Thames Water. Thames Water serves the London region.
Is the water in UB5 safe to drink?
Yes. Hard water at 281 ppm is safe to drink. Water hardness affects taste and can cause limescale, but it is not a health risk. In fact, hard water contains beneficial minerals like calcium and magnesium.
How can I reduce water hardness in UB5?
For hard water at 281 ppm, a whole-house water softener is the most effective solution. You can also use a jug filter for drinking water, descaling products for appliances, and a shower filter for better skin and hair.
What does 281 ppm water hardness mean?
281 ppm means there are 281 parts per million of calcium carbonate dissolved in the water. This is equivalent to 19.7 Clark degrees, 15.7 German degrees, or 28.1 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Northolt Thames Water coverage Hard water effects on your home Solutions for hard water

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