A leaking tap is more than just annoying. Left untreated, it can waste water, damage fittings, and put unnecessary strain on your plumbing. The good news is that many tap leaks are caused by simple, fixable issues.
Common causes of tap leaks
The most common cause is a worn washer in traditional taps. Over time, washers harden and lose their ability to seal properly. In mixer taps, worn cartridges or damaged O-rings are usually to blame. Leaks around the base of the tap often point to failing seals, while leaks from the spout usually come from internal components.
High water pressure can also force water past seals, especially in older taps.
Quick fixes you can try
Before starting, turn off the water supply and drain the tap. Remove the handle and access the internal components.
If your tap uses a washer, replace it with a new one of the same size. Check any O-rings at the same time and lightly lubricate them before refitting. For mixer taps, replacing the cartridge is usually the most effective solution.
Clean away any debris or limescale inside the tap body before reassembly. Even small particles can stop a tap sealing properly.
Once reassembled, turn the water back on and test the tap.
If the leak continues
Persistent leaks often mean the valve seat inside the tap is worn, or the tap itself is reaching the end of its lifespan. At this stage, replacing the tap is often more cost-effective than repeated repairs.
Professional help
If the tap won’t stop leaking, if you’re unsure about dismantling it, or if there’s water leaking under the sink, it’s time to call a plumber.
Calore provides professional plumbing services across Edinburgh and the Lothians, from small repairs to full bathroom and kitchen installations. We offer clear pricing, quality workmanship, and a reliable local service you can trust.