It starts as a minor annoyance — that rhythmic drip-drip-drip you hear when the house goes quiet. Most Edinburgh and Midlothian homeowners put it on the mental list of "things to sort eventually" and carry on. But that small, seemingly insignificant drip is costing you money, damaging your home, and getting worse with every passing day.
How Much Water Does a Dripping Tap Actually Waste?
The numbers are more alarming than most people expect. A tap dripping once per second wastes approximately 31 litres per day — that is around 11,000 litres per year from a single tap. A faster drip (two or three times per second, which is common as the washer wears further) can waste over 20,000 litres annually. If you are on a water meter in Edinburgh, you are paying for every one of those litres. Scottish Water charges approximately £1.50 per 1,000 litres, meaning even a slow drip adds £15–£30 per year directly to your bill — and more if you have multiple leaking taps.
The Hidden Damage You Can't See
Staining and Surface Damage
Constant water dripping into a sink leaves mineral deposits that stain porcelain, enamel, and stainless steel. These limescale and iron stains are notoriously difficult to remove once set, and in Edinburgh where water has a moderate mineral content, they build up quickly. Over months and years, the continuous dripping can also erode the sink surface beneath the tap, eventually causing pitting or cracks in older sinks.
Increased Mould Risk
A dripping tap keeps surfaces permanently damp. In enclosed sink cabinets — common in older Edinburgh tenements and Midlothian semi-detached homes — this creates ideal conditions for mould and mildew. Mould under a sink cabinet can spread to walls and flooring, turning a £30 tap repair into a much larger remediation job.
Damage to Pipework and Joints
Most dripping taps are caused by a worn washer or O-ring inside the tap body. If ignored, this wear does not stay localised — the water pressure continuously working against a failing component gradually damages the tap seat (the metal surface the washer presses against). Once the seat is damaged, simply replacing the washer is no longer enough. You will need a re-seating tool used by a plumber, or a full tap replacement — significantly more expensive than an early repair.
Impact on Water Pressure
A single dripping tap has minimal effect on overall household pressure. However, if you have multiple worn taps or the fault is in the supply pipe rather than the tap itself, you may notice weaker flow from adjacent outlets. A drop in pressure can also indicate a more serious underlying issue — such as a partial blockage or developing leak — that a dripping tap has masked.
DIY Tap Repair: When It's Appropriate
For a traditional pillar tap with a rubber washer, a confident DIYer can replace the washer in under 30 minutes. You will need to shut off the water under the sink (or at the mains stopcock), unscrew the tap head, replace the washer at the bottom of the spindle, and reassemble. Replacement washers cost around £1 at any hardware store.
However, there are situations where you should call a professional plumber rather than attempt a DIY fix:
- Ceramic disc taps — these need specific cartridges and are easy to damage if you use the wrong technique
- The tap continues to drip after you replace the washer (likely a damaged seat)
- There is any sign of water damage under the sink cabinet
- The drip is coming from around the base of the tap, not the spout (a different seal is failing)
- Your taps are old and you are unsure of the type or parts required
The Cost of Fixing vs. Ignoring
A standard tap washer replacement by a plumber costs around £60–£100 including call-out. A new tap supply and fit starts from approximately £120. Compare this with the compounding costs of water waste, sink damage, mould remediation, and eventual seat or full tap replacement — ignoring a dripping tap never saves money in the long run.
Get Your Dripping Tap Fixed in Edinburgh or Midlothian
Our local plumbing team covers Edinburgh, Dalkeith, Bonnyrigg, Penicuik, and across Midlothian. We carry a full range of tap washers, cartridges, and replacement tap fittings on every van, so we can fix most dripping taps in a single visit without a return trip. We also offer leak detection services if you suspect a more complex issue behind your dripping tap.
Call us on 01315631581 for a same-day appointment, or submit an enquiry online for a free no-obligation quote.