Leaking Pipes: Warning Signs, Fixes and When to Call a Professional Plumber

Leaking pipes are one of the most common plumbing issues we face as homeowners but ignoring them can lead to water damage, higher water bills and even burst pipes. Knowing the causes, warning signs and solutions can save you time, money and further damage to your property.
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Warning Signs of Leaking Pipes
Detecting a pipe leak early can save you money. Here are the warning signs to look out for:
- Higher Water Bills
A sudden jump in your water bill means water is leaking from a hidden pipe. - Low Water Pressure
Low pressure in your shower or taps could be due to a leaking mains pipe or faulty connections. - Damp or Discoloured Walls
Damp patches, bubbling paint or water stains are signs of a leak. - Dripping Taps and Pinhole Leaks
A dripping tap or small holes in your metal pipes or plastic pipes can add up to big problems. - Sounds of Running Water
Water running when taps and appliances are off is a giveaway of a leak.
Causes of Leaking Pipes
Knowing the causes can help you fix the problem:
- Corrosion in Pipework
Over time metal pipes in older plumbing systems corrode and crack or hole. - Worn-Out Connections
Weak or damaged joints in your pipework can let water out. - High Water Pressure
Too much water flow can stress your plumbing system and cause leaks and burst pipes. - Temperature Changes
Rapid heating or cooling can cause pipes to expand or contract and weaken watertight seals. - Appliance Wear and Tear
Leaks often occur near washing machines, boilers and toilets due to worn out hoses or connections.
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How to Temporarily Fix a Leaking Pipe
While waiting for a plumber, you can temporarily fix a leaking pipe:
- Turn Off the Water Supply
Find the stopcock and turn it clockwise to shut off the water supply. This will stop the water from leaking and minimize damage. - Drain the Pipe
Open nearby taps to let the remaining water out of the system. - Seal the Leak
Use plumber’s tape, a rubber patch or epoxy putty to fix temporarily. Make sure the pipe is dry before applying the sealant. - Inspect Nearby Areas
Check for other damage, cracks or weak joints to see if there’s more to fix.
When to Call a Plumber
A temporary fix can only go so far. If the leak persists or there’s water damage, call a plumber for a permanent fix. A plumber will:
- Find the source of the leak with our special tools.
- Repair the pipe or recommend replacement of corroded or damaged sections.
- Inspect your plumbing system to prevent more problems.
How to Prevent Future Pipe Leaks
Here are some tips to protect your plumbing system and prevent damage:
- Regular Maintenance
Have your plumbing system checked annually to see where your pipework is weak. - Monitor Water Pressure
Install a pressure regulator to keep water flow at a safe level especially in older homes. - Replace Old Pipes
Replace metal pipes or older materials in ageing systems with modern plastic pipes. - Protect Against Freezing
Insulate pipes during winter to prevent freezing and bursting due to temperature changes. - Don’t Pour Corrosion-Causing Substances
Don’t pour grease, chemicals or debris down your kitchen sink or drains as these can cause corrosion.
Water Pressure and Pipe Leaks
Excessive water pressure is a silent culprit to many plumbing problems including pipe leaks. High pressure stresses the plumbing system especially at weak points like joints and connections.
Over time this can cause cracks and water to escape from the pipes. Install a pressure regulator or monitor your system for unusual changes in water flow to prevent future leaks.
Temperature and Your Plumbing
Temperature changes especially during winter can be brutal to your pipework. Freezing temperatures can cause water pipes to expand and contract which can cause burst pipes or cracks. Hot temperatures can weaken plastic pipes and older metal pipes. Insulate exposed pipes and keep your boiler and heating system in good condition.
Where Leaks Occur
- Under sinks: Constant use and worn connections around the kitchen sink or bathroom sink can cause leaks.
- Behind appliances: Washing machines and dishwashers can cause hidden leaks due to worn hoses or faulty valves.
- At joints and connections: Weak joints between pipes especially in ageing systems are a common cause of leaks.
Check these areas regularly to catch leaks early.
Why Small Leaks Become Big Problems
A small water leak may not seem urgent but can quickly become bigger problems. Leaks allow water to escape which can lead to:
- Corrosion in surrounding pipework.
- Damage to floors, walls and ceilings due to water escaping for a long time.
- Higher water bills from wasted water over time.
Fixing minor leaks early will save you money and prevent damage to your property.
The Environmental Impact of Leaks
Beyond the immediate cost to homeowners, leaks also affect the environment. Wasted water from untreated leaks puts pressure on local water supply systems and increases demand for water treatment. Fixing leaks early not only protects your home but also conserves water and supports sustainability.
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The Cost of Ignoring Leaks
Ignoring a leak may save you time now but will cost you more later. A neglected pinhole leak can turn into a burst pipe and require emergency repairs. Long term water damage can weaken the structure of your home and require expensive restoration. Fix it now and have peace of mind for the future.
DIY Leak Detection Methods
If you suspect a leak but can’t see it, try these:
- Check the water meter: Turn off all water sources and check the meter for movement. If it’s moving there’s a leak in your system.
- Inspect outside: Look for damp patches in your garden or driveway which may indicate a leaking mains pipe.
- Use food colouring: Add a few drops of food colouring to your toilet tank and wait a few minutes. If colour appears in the bowl without flushing, your toilet may be leaking.
These simple steps will help you find and fix hidden leaks before they become big problems.
Why Fixing Leaks Early is Important
A small pipe leak may seem minor but can waste hundreds of litres of water daily and become big problems. Delaying a repair can result to:
- Damage to your property.
- Mould growth.
- Higher costs for repairs and replacements.
Conclusion
Leaking pipes is a common problem for homeowners but with early detection and action you can minimize the impact. Whether it’s a dripping tap, pinhole leaks or a bigger issue, fix it right and save yourself money and your plumbing system.
Fix it now with a professional plumber like The Plumbers Cardiff who can inspect, repair or replace your pipes.