Repiping isn’t a renovation most homeowners plan for — it’s usually something that becomes necessary because of repeated problems, often during or just before a broader renovation when walls and floors are already being opened up. Here’s how to tell if it’s something worth considering, and what’s generally involved.
Common warning signs
- Frequent leaks in different locations — if you’ve had two or three unrelated pipe leaks over a couple of years, it’s often a sign the pipes themselves (not just individual fittings) are reaching the end of their life
- Discoloured water, particularly when it’s been sitting in pipes overnight — this can indicate corrosion inside older galvanised steel pipes
- Low or inconsistent water pressure that’s gradually gotten worse over time, especially in a home with original pipework
- Visible corrosion on any exposed pipework — under sinks, in the laundry, around the hot water system
- The age and type of pipes — homes built before the 1970s often have galvanised steel supply pipes, which have a finite lifespan and are a common candidate for repiping regardless of whether problems have appeared yet
Repiping vs. ongoing repairs
For homes showing several of these signs, there’s a point where ongoing repairs become more expensive — and more disruptive — than addressing the pipework as a whole. Each individual repair might seem manageable, but repeated call-outs, water damage from leaks that go unnoticed, and the inconvenience of repeated access into walls and ceilings add up.
Repiping is a bigger job upfront, but it resets the clock — rather than managing an ageing system one failure at a time.
Why renovations are often the right time
If a renovation already involves opening up walls, floors or ceilings — a bathroom or kitchen renovation, for example — that’s often the most cost-effective time to address ageing pipework in those areas, even if it wasn’t the original plan. Once finishes are closed back up, accessing pipework again means undoing some of that work.
This is one of the reasons it’s worth having a plumber look at the overall condition of a home’s plumbing before a renovation begins — not just the area being renovated, but what’s feeding it. Discovering mid-renovation that the supply pipe to a newly renovated bathroom is corroded and needs replacing is a far more disruptive (and costly) version of the same job.
What’s involved
The scope of repiping depends heavily on the home — a single-storey weatherboard with accessible subfloor is a very different job to a double-storey home with limited access. A proper assessment looks at:
- Which pipes are affected (often just the cold or hot water supply, not always drainage)
- Access — is work mostly under the house, or does it require opening walls/ceilings
- Whether the work can be staged around a renovation already underway, or needs to happen separately
Getting an honest assessment
Because repiping is a significant decision, it’s worth getting an assessment from a plumber who will give a straight answer about whether it’s actually necessary now, or whether targeted repairs are still a reasonable option for a few more years.
Sedcon Plumbing provides honest assessments for Melbourne homeowners considering repiping, including how it might fit alongside a planned renovation. Get in touch to arrange an assessment.
Planning a renovation or new build? Our Builders & Renovations page covers how we work with builders and homeowners on rough-ins, fit-offs, bathroom and kitchen plumbing.
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