Plumbing issues manifest in many ways. Whether a minor annoyance or a sudden disaster, it is important to recognise the most frequent plumbing emergencies so you can take quick, effective action. This prevents escalating costs and minimises property damage. When facing plumbing problems, prevention is far better than cure. By anticipating these common plumbing issues in London, you can significantly reduce their likelihood of occurring and their severity. For critical issues, remember that a reliable 24 hour emergency plumber in London is the key to protecting your home. Here are the 10 most common plumbing problems in London, along with their causes and recommended solutions. 1) Dripping Taps A dripping tap is one of the most widespread plumbing complaints in London. Beyond the irritating sound, the constant waste of water can noticeably increase your utility bill. A single faulty tap can waste hundreds of gallons over a year. Causes & Solutions: The issue is nearly always a worn, stiff, or damaged internal washer or cartridge. The repair involves turning off the water supply to the tap, disassembling the unit, replacing the worn part, and reassembling it. Although not an urgent crisis, it is sensible to call a plumber promptly to stop water wastage and rising bills. 2) Slow Draining Sink A sink that drains sluggishly is a common indicator of an underlying flow restriction. It is vital to address this quickly, as it can easily develop into a severe blockage. Causes & Solutions: This is typically caused by a partial obstruction. In the kitchen, congealed fat and food waste are common culprits, while tangled hair and soap residues are the usual suspects in the bathroom. You could try a plunger or chemical cleaner, but for a guaranteed resolution the expertise and equipment of a local plumber are the safest option. 3) Low Water Pressure If your water appears to trickle from the tap rather than gush, you are likely experiencing low water pressure. A sudden, rapid decrease in pressure throughout the entire property could signal a water main break, which is common in older houses and requires immediate attention from a 24 hour emergency plumber in London. Causes & Solutions: Low water pressure can result from cracked or corroded leaking pipes. If the issue is confined to the shower, it is usually due to sediment and mineral deposits on the aerators. A plumbing expert can safely clean these components using a chemical or vinegar solution. For older, worn shower units, replacement may be the best way to ensure consistent pressure. 4) Clogged Bath or Shower Drain If you notice standing water around your ankles while showering, or the bath takes longer than usual to empty, you may have a blockage. An unpleasant bathroom odour is another sign. Causes & Solutions: Hair and soap are the primary causes of blockages. Clearing the obstruction may require a plunger or a plumber’s snake, depending on the clog’s depth. If left untreated, the problem will worsen over time. Purchasing a drain guard to trap hair is an excellent, low-cost method of prevention. 5) Blocked Toilet A toilet is blocked when the bowl fills up but fails to empty. While the issue is easy to identify, the solution should always be performed by a certified plumber to prevent accidental damage. Causes & Solutions: A plunger will often clear a simple clog. If this fails, a specialist tool like a sewer snake or drain auger can be used. A plumber has the training to address deep blockages effectively and safely. 6) Running Toilet A running toilet can waste up to 200 gallons of water daily and inflate your water bill. It is easy to spot and confirm by removing the tank cover and watching the overflow tube after flushing. Causes & Solutions: The most frequent cause is a faulty flapper valve, which controls the water flow from the tank to the bowl. A toilet repair kit from a hardware store can sometimes provide a temporary fix. However, a professional plumber can quickly and efficiently resolve the problem with a long-term solution. 7) Faulty Water Heater This is one of the most common reasons to call a 24 hour emergency plumber in London. It is usually noticed when the shower suddenly runs cold. Causes & Solutions: A water heater failure can stem from several problems. The pilot light may need relighting, or there could be sediment in the tank. A faulty thermostat is another possibility. Unless it is a straightforward fix like relighting the pilot light, you should contact a professional to inspect, maintain, and repair your water heater. 8) Leaking Pipe Under Sink Leaky pipes can severely damage floors and furniture, and the damp conditions they create can attract pests. If ignored, the continuous water loss can become expensive. Causes & Solutions: Leaks usually occur at pipe joints. Tape, compounds, and fillers can provide a temporary repair, but a durable solution requires replacing the damaged pipe and fittings. Leaks are more common in winter when freezing water causes bursts. For a leaking pipe under the sink, it is best to call a plumbing expert to prevent future ruptures. 9) Broken Water Lines Underground water pipes can be damaged by tree roots, ground movement, or excavation. This can cause damp patches around your house, low water pressure, and poor water quality. Causes & Solutions: Temperature fluctuations or unusual weather can shift the ground, leading to broken water mains. Sudden pressure changes or corrosion can also cause cracks in older pipes. While you cannot prevent bad weather or natural wear, you can minimise risk by disposing of waste responsibly. Contact a 24 hour emergency plumber in London immediately if you suspect symptoms of a broken water line. 10) Sewer Back-Up A sewage back-up is disruptive, foul, and costly to repair. It occurs when an obstruction or damage prevents wastewater from draining away, usually in the main sewer line connecting your home to the public system. Causes & Solutions: The main causes are clogged sewer lines, tree root intrusion, or