UK region

Water hardness in West Midlands

Average 215 ppm across 203 postcode districts — classified as hard.

Range 53–297 ppm
Counties 5
Suppliers Severn Trent Water, Welsh Water (Dwr Cymru)

Regional average

215

ppm CaCO₃

Hard

Soft

Moderate

Hard

Very hard

0100200300400+

215

Avg ppm

Min ppm

297

Max ppm

203

Postcodes

Water Hardness Across West Midlands

The average water hardness in the West Midlands region is 215 ppm, classified as hard. Across 203 postcode districts, hardness ranges from 53 ppm to 297 ppm.

The region is served by Severn Trent Water, Welsh Water (Dwr Cymru). Water hardness varies by county — see the breakdown below or check your specific postcode.

At 215 ppm, West Midlands ranks as hard water nationally. Compare it against the 50 hardest water areas in the UK.

By county

Counties in West Midlands

Sorted by hardness — see how your county compares.

County	Hardness	PPM	Level	Postcodes
Shropshire	249	249 ppm	Hard	13
Staffordshire	222	222 ppm	Hard	21
West Midlands	222	222 ppm	Hard	145
Worcestershire	207	207 ppm	Hard	15
Herefordshire	57	57 ppm	Soft	9

Suppliers

Water Companies in West Midlands

Tap on a company for full coverage area and hardness data.

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions

Recommended

Products for West Midlands

Top picks for households in hard water areas.

Splendid Twin Tank Water Softener

From ~£400

Twin-tank electric softener sized for 1 to 7 bedroom homes. Removes limescale from pipes, boilers, and appliances and delivers continuous soft water, with metered regeneration to keep salt use low.

View on Amazon

Philips Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead, no plumbing needed. A good first step before committing to a full softener.

View on Amazon

FAQ

Common questions about West Midlands water

Is West Midlands's water hard or soft?

West Midlands is classified as hard water, averaging 215 ppm across 203 postcode districts. Expect visible limescale on kettles and taps within weeks at this level.

Is tap water in West Midlands safe to drink?

Yes. All tap water in West Midlands meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.

Why is water in West Midlands hard?

Water hardness in West Midlands depends on the geology — chalk and limestone aquifers dissolve calcium and magnesium into the supply, making it harder. Areas with sandstone or granite tend to be softer.

Does hard water affect boilers in West Midlands?

Over time, limescale acts as an insulator in heat exchangers, reducing efficiency by a few percentage points each year if untreated. A water softener can help protect your boiler.

What's the average water hardness in West Midlands?

The average water hardness across West Midlands is 215 ppm (parts per million), classified as hard. It ranges from 53 ppm to 297 ppm across 203 postcode districts.

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