A dripping tap might seem like a minor annoyance — something to ignore for a while until you "get around to it." But what many homeowners don’t realise is that even a slow, steady leak can lead to surprising water waste, higher bills, and in some cases, damage to your home over time.
In this blog, we break down the true cost of a leaking tap — and why fixing it sooner rather than later is a smart move.
How Much Water Does a Leaking Tap Waste?
Let’s start with the numbers. A tap that drips once every second wastes:
- 15–20 litres per day
- Around 5,500–7,000 litres per year — that’s more than 90 bathtubs worth of water!
If you have multiple leaking taps, or the drip is more like a trickle, the waste (and cost) can multiply quickly.
The Impact on Your Water Bill
In the UK, many households are on a water meter, which means you’re charged based on how much water you use. That leaking tap could be adding £20–£60 or more per year to your bill — money literally going down the drain.
For commercial premises, landlords, or larger households, the cost can be even higher if multiple taps are affected.
Wasting Water = Environmental Impact
Beyond the bill, there’s the bigger issue: water conservation. The UK may not seem like a water-scarce country, but demand is rising and climate change is already putting pressure on supply. Fixing small plumbing issues like leaks helps reduce unnecessary strain on our environment.
Other Hidden Costs of a Dripping Tap
Aside from water waste and higher bills, a leaking tap can cause:
- Limescale build-up around sinks and fixtures
- Stains or water damage to countertops and basins
- Increased wear on washers and valves, leading to larger repairs later
- Annoying sounds that disturb sleep or quiet time
What Causes a Tap to Leak?
Leaking taps are most often caused by:
- Worn-out washers or O-rings
- Loose or corroded parts inside the tap
- High water pressure
- Faulty tap cartridges in mixer taps
Most issues are inexpensive to fix, but leaving them can lead to bigger plumbing repairs down the line.
When to Call a Plumber
If you’ve tried tightening the tap or replacing the washer but the drip persists, it’s best to call in a professional. Sometimes what looks like a small issue can be a symptom of a deeper plumbing problem — like high water pressure or corrosion in your pipes.