Reroute vs Whole-Home Repipe: When Is a Partial Fix Enough?
One leak is a repair. A pattern is a different problem. A reroute that bypasses a single failed run is a legitimate, lasting fix when the rest of the system is sound — but when the other pipes are the same age, the same material and in the same condition, a reroute is often the first installment of a repipe done piecemeal, which costs more in total than doing it once. The question to answer before you commit is not what failed. It is what the rest of the pipe looks like.
What Is a Reroute?
A reroute abandons a failed section of pipe in place and runs a new line around it — typically overhead through walls and ceilings instead of under the slab. It is the standard answer to a slab leak, because it avoids breaking concrete to reach pipe that is difficult and expensive to access.
A whole-home repipe replaces the supply system: every run, in copper or PEX, with the old pipe retired. Where a reroute solves the failure in front of you, a repipe removes the conditions that produced it.
Both are real solutions. Neither is automatically correct, and the honest answer depends on evidence rather than on preference.
One Leak, or a Pattern?
This is the whole decision, and it is worth being blunt about how it goes wrong.
When slab leak detection or an exploratory leak search turns up a single failure in otherwise sound pipe, repairing or rerouting that section is the right call — and we will tell you so. When the same system has leaked two or three times, or the pipe we open up is corroded along its whole length, another patch is buying a few months.
Reroutes sit in the middle. Bypassing a failed run under the slab is a sound fix on its own terms. But if the rest of the house is the same age and the same material, a reroute often turns out to be the first section of a repipe you end up doing anyway — one room at a time, at a higher total cost. It is worth knowing what the whole system looks like before committing to the piece in front of you.
Reroute or Repipe at a Glance
Does a Slab Leak Mean I Need a Whole-House Repipe?
Not automatically. An isolated slab leak in otherwise healthy pipe can be repaired or rerouted, and that is frequently the correct and cheaper answer.
But slab leaks in older copper or galvanized systems are frequently the first visible symptom of pipe that is failing throughout — which is why we start with detection rather than assuming either answer. What we find determines the recommendation. A single warm spot on the floor of a house with sound pipe everywhere else is a reroute. A warm spot in a house whose pipe is uniformly corroded is an early warning.
Four Questions That Settle It
Before committing to the piece in front of you, ask these about the rest of the system.
- How old is the rest of the pipe? If every run went in at the same time, they are aging on the same schedule.
- Is it the same material? Galvanized steel from a pre-1960s build behaves very differently from copper added in a 1990s remodel. Mixed-age systems genuinely can justify a partial fix.
- Has it failed before? Two or three failures in the same system is the clearest signal there is. The count matters more than the severity.
- What does the opened pipe actually look like? If the section we cut out is corroded along its whole length, that is the condition of pipe you cannot see, not a local defect.
Three or four answers pointing the same way is not a close call. Two and two usually is, and that is the conversation worth having in person.
The Piecemeal Trap
The reason we raise this at all is that the cheaper decision, repeated, becomes the expensive one. Each reroute carries its own call-out, its own wall openings, its own patching and its own permit where one is required. Do that three times over five years and you have paid more than a single repipe would have cost, spread across three disruptions instead of one — and you still have the rest of the original system in the walls.
That is not an argument that everyone should repipe. It is an argument for finding out what the whole system looks like before deciding, which takes one visit and costs nothing.
How We Decide
Because Repipe Once does both the detection and the repipe, our recommendation follows what we actually find in the walls rather than which job is larger. We locate the leak, we look at the pipe we take out, and we tell you which of the two situations you are in — including when the answer is the cheaper one.
Whole-home repipes require a plumbing permit and inspection in California, which we handle. Wall openings are kept to a minimum and patching is included either way. Workmanship is warranted for 15 years as standard.
Testimonials
Why We Will Tell You to Do Less
A repipe is a larger job than a reroute, and a company that only repipes has an obvious reason to recommend one. Repipe Once does the leak detection, the reroute and the whole-home repipe — so we have no stake in which of them your house needs.
- Detection first — slab leak detection, exploratory leak search and video camera inspection, before any recommendation.
- We say so when it is a repair — a single failure in sound pipe is a repair, and we will tell you that.
- Licensed and permitted — California CSLB license #1004038; we pull the permits and pass the inspections.
- 15-year workmanship warranty — standard, with a lifetime warranty available on qualifying work.
- Upfront pricing — the price we quote is the price you pay, with no hidden fees.
Done once, done right — including when once means once.
Frequently Asked Questions
My plumber suggested a reroute. Should I repipe instead?
Sometimes, and sometimes not. A reroute that bypasses one failed run is a legitimate repair when the rest of the system is sound. The question to ask is what the other pipes look like — same age, same material, same condition? If so, a reroute is often the first installment of a repipe done piecemeal, which costs more in total than doing it once. We are happy to look at the whole system and tell you honestly which one your house needs.
Does a slab leak mean I need a whole-house repipe?
Not automatically. An isolated slab leak in otherwise healthy pipe can be repaired or rerouted. But slab leaks in older copper or galvanized systems are frequently the first visible symptom of pipe that is failing throughout, which is why we start with slab leak detection rather than assuming either answer. What we find determines the recommendation.
How many leaks is too many before I should repipe?
There is no fixed number, but two or three failures in the same system is the point at which another patch is usually buying months rather than years. The pattern matters more than the severity of any single leak.
Is a reroute a permanent fix?
It can be. A reroute that bypasses a failed run is sound on its own terms and does not expire. What it does not do is change the condition of the pipe it leaves behind — so whether it is permanent depends entirely on the rest of the system.
Do you have to break the slab?
Usually not. Rerouting overhead through walls and ceilings is the standard way to avoid breaking concrete to reach pipe under a slab. Where the failure sits and how much serviceable pipe is left determines the honest answer, which is why we camera and test before recommending either approach.
Will you cut open my walls, and who fixes them afterward?
Both a reroute and a repipe require small, strategic openings in drywall to access pipe runs. We keep openings to a minimum, and patching is included in our process — we leave your property clean and walk you through the finished work.
Do I need a permit for a reroute?
Whole-home repipes require a plumbing permit and inspection in California. Permit requirements for partial work vary by jurisdiction and scope, and we confirm what your city requires as part of the estimate. Either way, Repipe Once handles the permit process.
Can I repipe one section now and the rest later?
You can, and sometimes it is the right call for genuine budget reasons. Be aware of the arithmetic: each visit carries its own call-out, wall openings, patching and permitting, so a repipe done in three stages costs more in total than the same work done once. If phasing is necessary, we will help you sequence it so the runs most likely to fail go first.
Get an Honest Read on Your Pipes
One visit tells you whether you are looking at a reroute or a repipe — and we will tell you when it is the smaller job. Free estimate, upfront pricing, permits handled.