Repipe cost calculator
A repipe is priced per fixture, not per foot, because the fixture is where the labour is: a stop valve, a stub-out, a hole to cut and a hole to patch. Set the fixture count, the material and how you are getting to the walls, and the band follows.
Pre-filled with a two-storey, twelve-fixture house repiped in PEX from the attic.
Every valve you have to reach: sinks, tubs, toilets, hose bibbs, appliances.
- Material — PEX-A home run
- $739–$1,747
- Labour — 34–54 h at $145/h
- $4,872–$7,795
- Drywall patch and paint
- $540–$1,920
- Permit and inspections
- $250
A planning band. Walk the house before you quote.
Per fixture: $533–$976
Why per fixture works
Linear feet of pipe is the cheapest part of a repipe and the least predictable to measure from a drawing. Fixtures are countable from the doorway and they carry the work: each one needs a manifold port or a tee, a run, a stub, two stops and a patch. Estimating per fixture and multiplying for access is faster and lands closer than measuring pipe.
The storey multiplier exists because vertical runs cost more than horizontal ones — more fishing, more drilling through plates, more time on a ladder that is not being spent on pipe.
Patching is a real line
What the material choice changes
Copper roughly doubles the material line and adds an hour and a half per fixture over PEX, most of it in joint preparation. PEX home runs cut labour but need a manifold location and a lot of tubing. CPVC sits between the two on both counts and is the usual answer where local practice or insurance favours a rigid system.
The one thing the material must not change silently is the size. A 3/4" PEX line does not carry what 3/4" copper carries, because the inside diameter is smaller. Re-run the pipe size calculator when you switch.
Code notes
IPC UPC Both codes list approved water distribution materials, and both jurisdictions inspect a repipe in two stages: a pressure test with the walls open, then a final. Some authorities having jurisdiction (AHJs) restrict certain materials in certain occupancies. Confirm before the material is on the truck.