Is Exeter Water Hard or Soft?

Slightly Hard at 93 ppm • Devon, South West

Slightly Hard

The average water hardness in Exeter is 93 ppm, classified as slightly hard. Exeter is served by South West Water, covering 33 postcode districts across Devon in the South West region.

Hardness varies across the area — see the table below for a breakdown by postcode district.

Water Hardness by Postcode in Exeter

Postcode	Water Company	Hardness	PPM	Level
EX39	South West Water	138 ppm	138 ppm	Moderately Hard
EX38	South West Water	137 ppm	137 ppm	Moderately Hard
EX37	South West Water	136 ppm	136 ppm	Moderately Hard
EX36	South West Water	135 ppm	135 ppm	Moderately Hard
EX35	South West Water	134 ppm	134 ppm	Moderately Hard
EX34	South West Water	133 ppm	133 ppm	Moderately Hard
EX33	South West Water	132 ppm	132 ppm	Moderately Hard
EX32	South West Water	131 ppm	131 ppm	Moderately Hard
EX31	South West Water	130 ppm	130 ppm	Moderately Hard
EX24	South West Water	100 ppm	100 ppm	Slightly Hard
EX23	South West Water	99 ppm	99 ppm	Slightly Hard
EX22	South West Water	98 ppm	98 ppm	Slightly Hard
EX21	South West Water	97 ppm	97 ppm	Slightly Hard
EX20	South West Water	96 ppm	96 ppm	Slightly Hard
EX9	South West Water	83 ppm	83 ppm	Slightly Hard
EX8	South West Water	82 ppm	82 ppm	Slightly Hard
EX7	South West Water	81 ppm	81 ppm	Slightly Hard
EX6	South West Water	80 ppm	80 ppm	Slightly Hard
EX5	South West Water	79 ppm	79 ppm	Slightly Hard
EX4	South West Water	78 ppm	78 ppm	Slightly Hard
EX3	South West Water	77 ppm	77 ppm	Slightly Hard
EX2	South West Water	76 ppm	76 ppm	Slightly Hard
EX1	South West Water	75 ppm	75 ppm	Slightly Hard
EX19	South West Water	72 ppm	72 ppm	Slightly Hard
EX18	South West Water	71 ppm	71 ppm	Slightly Hard
EX17	South West Water	70 ppm	70 ppm	Slightly Hard
EX16	South West Water	69 ppm	69 ppm	Slightly Hard
EX15	South West Water	68 ppm	68 ppm	Slightly Hard
EX14	South West Water	67 ppm	67 ppm	Slightly Hard
EX13	South West Water	66 ppm	66 ppm	Slightly Hard
EX12	South West Water	65 ppm	65 ppm	Slightly Hard
EX11	South West Water	64 ppm	64 ppm	Slightly Hard
EX10	South West Water	63 ppm	63 ppm	Slightly Hard

Water Companies Serving Exeter

South West Water

Average hardness: 80 ppm (Slightly Hard) • 129 postcodes served

Water Hardness Guides

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal

Test Your Water in Exeter

At 93 ppm, your water is slightly hard. A home testing kit lets you verify the exact hardness and check for other contaminants.

SJ WAVE 16-in-1 Water Testing Kit

From ~£10

Quick home water test strips — checks hardness, pH, chlorine, lead, and 12 other parameters. Results in 60 seconds. 100 strips per pack.

View on Amazon

Get Water Hardness Updates

Be notified when your water company reports changes to hardness levels.