Why this question comes up

Almost nobody plans a repipe from scratch. It usually starts with a wet spot in a garage wall, a stain on a hallway ceiling or a warm patch on a tile floor. The plumber fixes it, and a year or two later another leak appears somewhere else. At that point the question changes from how to fix this leak to whether the pipes themselves are wearing out.

A spot repair replaces a short section of pipe or a single fitting. A whole-house repipe replaces every supply line from the main shutoff to each fixture. Both are legitimate choices. The right one depends on what the rest of your pipe looks like, not just the piece that failed.

A rough way to sort your situation

These are starting points for a conversation with a licensed plumber, not rules.

  • IfThis is the first leak and it is at a fitting, valve or connectorThenA spot repair is usually reasonable. Ask the plumber what the pipe looked like on either side of the repair.
  • IfYou have had two or more pinhole leaks in copper in different roomsThenAsk for an honest assessment of the whole system before agreeing to another patch.
  • IfYour supply lines are galvanized steel and the water runs rusty or weakThenGalvanized corrodes from the inside, so replacement is usually discussed rather than repair.
  • IfYou have had one slab leak repaired and now suspect anotherThenAsk about rerouting lines overhead as an alternative to opening the slab again.
  • IfYou are already opening walls for a remodelThenAsk what it would take to repipe while access is easy.

Information to gather before you ask

  • Approximate year the house was built and any known plumbing upgrades.
  • Every leak you remember: where it was, when, and what was replaced.
  • Receipts or invoices from past repairs, which often name the pipe material.
  • Photos of any exposed pipe in the garage, under sinks or at the water heater.
  • Notes on water pressure, rusty water or noisy pipes.

Spot repair versus whole-house repipe

Spot repair

  • Fixes the immediate failure with the least disruption.
  • Usually done in a single visit.
  • Leaves the rest of the aging pipe in place.
  • Makes sense when the surrounding pipe is sound.

Whole-house repipe

  • Replaces every supply line at once.
  • Involves wall openings, a permit and several days of work.
  • Removes the old pipe from service, including lines under the slab.
  • Makes sense when failures are spread across the system.

Questions to ask the plumber

  1. What did the pipe look like inside and outside where you made the repair?
  2. Do you see signs that other sections are thinning or corroding?
  3. If I repair this one, what failure pattern should I watch for?
  4. If you recommend a repipe, what specifically leads you to that?
  5. Would you put your assessment in writing?

Getting a second opinion

A whole-house repipe is a large job, and it is reasonable to ask a second licensed plumber to look before you commit. Give both the same leak history and ask each to explain their reasoning. If one recommends a repipe and the other a repair, the explanation matters more than the recommendation itself.

Common questions

How many leaks means I should repipe?

There is no fixed number. Two or more pinhole leaks in different parts of the house is a common reason owners start asking, but the condition of the pipe matters more than the count.

Can a plumber see inside my pipes?

A removed section of pipe from a repair can show interior corrosion or scale. Ask the plumber to show it to you or keep it.

Does a repipe fix slab leaks?

A repipe that reroutes supply lines out of the slab takes those lines out of service, so they can no longer leak under the floor. Drain lines are a separate system.

General information for Yorba Linda, not a quote or professional advice. In an emergency, call 911.