Bedfordshire · East Of England

Is Luton water hard or soft?

Very Hard at 309 ppm · 7 postcode districts

  • Supplier Anglian Water
  • County Bedfordshire
  • Postcodes 7
Area average
309
ppm CaCO₃
Very Hard
Soft
Moderate
Hard
Very hard
0100200300400+

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The average water hardness in Luton is 309 ppm, classified as very hard. Luton is served by Anglian Water, covering 7 postcode districts across Bedfordshire in the East Of England region.

Hardness varies across the area — see the table below for a breakdown by postcode district. LU7 has the hardest water at 312 ppm, while LU1 is the softest at 306 ppm.

By postcode

Water Hardness by Postcode in Luton

Sorted by hardness — tap a postcode for full details.

Postcode Water Company Hardness PPM Level
LU7 Anglian Water
312
312 ppm Very Hard
LU6 Anglian Water
311
311 ppm Very Hard
LU5 Anglian Water
310
310 ppm Very Hard
LU4 Anglian Water
309
309 ppm Very Hard
LU3 Anglian Water
308
308 ppm Very Hard
LU2 Anglian Water
307
307 ppm Very Hard
LU1 Anglian Water
306
306 ppm Very Hard
Suppliers

Water Companies Serving Luton

Tap for full coverage area and hardness data.

Anglian Water

321 ppm Very 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 Luton

Popular choices for households dealing with very hard water.

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.

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Philips 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 around 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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FAQ

Common questions about Luton water

Is Luton water hard or soft?
Luton is classified as very hard, averaging 309 ppm across 7 postcode districts. Expect visible limescale on kettles and taps within weeks at this level.
Which postcode in Luton has the hardest water?
LU7 has the hardest water in Luton at 312 ppm, while LU1 is the softest at 306 ppm. See the full table above for every district.
Which water company supplies Luton?
Luton is supplied by Anglian Water, covering 7 postcode districts across Bedfordshire.
Is tap water in Luton safe to drink?
Yes. All tap water in Luton meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.
Do I need a water softener in Luton?
At 309 ppm, many households in Luton notice limescale in kettles and showerheads within weeks. A shower filter is the cheapest first step; a whole-house softener gives the most complete protection.
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