Old water pipes should usually be replaced when they keep leaking, show clear signs of corrosion or are made from materials no longer used for drinking water, such as lead. Pipes that are simply old but still in good condition do not always need replacing straight away. The right time often depends on the pipe material, its condition and how easy it is to reach.
Signs Your Pipework May Be Wearing Out
Repeated leaks are one of the clearest warnings. If one length of pipe has needed fixing several times, the rest of it may be weakening too. Patching it again and again can end up costing more than replacing that section.
Visible corrosion is another sign. You might notice crusty build-up, flaking, green or white marks around joints, or rust-coloured stains on older metal pipes. Discoloured water when you first turn on a tap can sometimes be linked to old pipework, although it can have other causes as well.
A gradual drop in water flow may also point to ageing pipes. Some older metal pipes can narrow inside over time as deposits build up. Low flow has many possible causes, though, so it is worth having it checked rather than assuming the worst.
Older Pipe Materials to Look Out For
The material your pipes are made from makes a big difference. Thames Water says that homes built before 1970 may have lead pipes, and that internal lead pipework should be removed by an approved plumber. Lead pipes are usually dull grey, soft and do not ring when tapped.
Galvanised steel pipes are found in some older homes. They can rust from the inside, which may lead to reduced flow and leaks. Very old copper pipes can still work well, but after many decades some may develop thin spots or pinhole leaks. Some early plastic pipes and fittings from past decades may also become brittle with age.
Repair or Replace?
A single leak on otherwise sound pipework can often be repaired. A small section can be cut out and replaced, or a faulty joint remade, without touching the rest of the system.
Replacement makes more sense when problems keep coming back, when the pipe is lead, or when several areas are showing wear at once. A plumber can look at the condition of the pipe, how it is joined and how it is routed through the house before suggesting the best option. If you would like an honest view on whether your pipework needs pipe repair or replacement, an inspection is a good starting point.
Plan the Work Around Other Jobs
Accessibility matters. Many pipes run under floors, behind boxing or inside walls, so reaching them can mean lifting boards or opening panels. That is why a renovation, such as a new kitchen or bathroom, is often a good time to replace old pipework. The floors and walls are already open, which can save disruption later.
If you live in Swindon and are unsure about the age or condition of your pipes, Emergency Plumber Swindon can take a look and talk you through your options. You can call us on 01793 569521.