In many cases, a burst water pipe can be repaired by cutting out the damaged section and joining in a new piece of pipe. However, if the pipe is old, corroded or damaged along a longer length, replacing the whole run may be the better choice. The right answer depends on what the plumber finds once the pipe is exposed.
When a Section Repair Is Usually Enough
If the burst is a single split or hole and the pipe around it is in good condition, a section repair is often all that is needed. The plumber turns off the water, cuts out the damaged part and fits a short new length with proper joints at each end.
This is common with frost damage or where a nail or screw has gone through a pipe. As long as the rest of the pipe is sound, the repaired section can be a long-term fix. A plumber offering repairs for burst water pipes will check the pipe on either side of the split before deciding.
Signs That a Longer Run Needs Replacing
Sometimes a repair would only solve part of the problem. If the pipe around the burst is thin, pitted or green with corrosion, another leak may appear close by soon after. In that case, replacing a longer length can make more sense.
Replacement may also be suggested if there have been several leaks on the same run, if the pipe has been badly crushed or bent, or if old joints keep weeping. Where pipes are hard to reach, such as under floors or behind walls, it can be better to replace a larger section while access is open.
How Pipe Material Affects the Choice
Copper pipe is common in UK homes and can usually be cut and joined well. Plastic pipe can also be repaired with suitable fittings, as long as the correct parts are used for that type of pipe.
Older materials can change the picture. Lead pipes are found in some older homes, and a plumber may recommend replacing them rather than patching a damaged section. Old galvanised steel pipe can rust from the inside, so a repair in one spot may not last if the rest is in poor condition. For wider work, you can find out more about pipe repair and replacement.
Temporary Fixes Versus Permanent Repairs
Pipe repair clamps, tape and putty are sometimes used to slow a leak for a short time. These can help in an emergency, but they are not designed to be a lasting repair on a pressurised water pipe. They may fail when the pressure changes or when the pipe moves.
A permanent repair means the damaged pipe is removed and replaced with new pipe and properly made joints. Afterwards, the plumber should turn the water back on slowly and check that every joint is dry. If a temporary fix has been put on, it is best to have it replaced properly soon.
If you are not sure whether your pipe needs a repair or a replacement, Emergency Plumber Swindon can help. Call 01793 569521 and we can come and look at the pipework in your Swindon home.