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Plumbing Cost Calculator , whole-house repipe cost by pipe material and fixture count

Pick a pipe material, a quality tier and your fixture count, and see the range with its breakdown. No email, no phone number.

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Published August 13, 2026

Figures updated August 13, 2026

The tool

Price your repipe

Material

PEX, trunk and branch PEX, home-run manifold CPVC Copper

Quality tier

Economy Mid-range Premium

Fixture count, in fixtures

Count every point the supply lines end at: each sink, toilet, tub, shower, washing machine, dishwasher, ice maker, hose bib and the water heater. A three-bedroom house with two bathrooms usually lands between 10 and 14.

Add-ons the bid will carry

Drywall repair and repainting A repipe means opening walls and ceilings. Patching, texturing and painting them again is usually a separate trade, and it is the line most often missing from a base quote. Slab or crawl space routing Pipe under a concrete slab has to be rerouted overhead or cut out of the floor. It is the single largest variable between two otherwise identical houses. Water main replacement The line from the meter to the house, which the repipe stops at. Old galvanized or polybutylene mains are worth doing at the same time. Water heater replacement Everything is already drained and the connections are already open, so this is the cheapest hour a water heater will ever be replaced in. Fixture and valve replacement New shut-off valves, supply lines, and any faucet or toilet you were going to replace anyway while the wall is open. Two stories and difficult routing Vertical runs between floors, finished basements, and anywhere the pipe cannot follow the route the old one took. Permits and inspection Required for a repipe almost everywhere. It is also what forces a pressure test to happen before the walls close.

Region

Indicative multipliers only. The spread inside a region is often wider than the spread between regions.

Estimated installed cost

$4,400 – $7,100

$362.50 – $587.50 per fixture, installed

Base, material and labor: $4,400 – $7,100
Drywall repair and repainting: $0
Slab or crawl space routing: $0
Water main replacement: $0
Water heater replacement: $0
Fixture and valve replacement: $0
Two stories and difficult routing: $0
Permits and inspection: $0
Total: $4,400 – $7,100

Materials: $1,300 – $2,100
Labor and overhead: $3,100 – $5,000

How it works

Where this plumbing cost calculator gets its numbers

One dataset holds the installed cost of each pipe material per fixture served, its expected service life, and the share of that cost which is product rather than labor. One calculation module reads it, and every plumbing figure on this site comes out of that module: the cost guide tables and this calculator.

The tool prices by the fixture because that is how repipes are quoted. Count every point the supply lines end at: each sink, toilet, tub, shower, washing machine, dishwasher, ice maker, hose bib and the water heater. A three-bedroom house with two bathrooms usually lands between 10 and 14.

Installed cost covers pipe, fittings and labor for the supply system, per fixture served.
A quality tier selects a slice of that material’s own range: pipe wall, fitting system, manifold versus branch layout.
Add-ons are a share of the base cost: drywall repair, slab or crawl-space access, a new water main or a water heater swap ride on the same job, and they are priced here the way plumbers price them.
Totals are rounded to the nearest hundred dollars.

What it cannot know

What this plumbing cost calculator does not know

Every figure here is a national bracket per fixture. What no calculator can see is where your pipes actually run.

How your house is built: Pipes in an open crawl space repipe in days; pipes under a slab or behind plaster repipe through the walls and the bill. The access add-ons cover the usual cases, but only a plumber in the house can say which one you are.
The drains: This tool prices the supply side. Cast-iron drain stacks from the same era often need work too, and finding that out mid-repipe is common. A camera inspection before quoting is cheap insurance.
How much wall comes open: A repipe is also a drywall job. The repair add-on covers patching; repainting whole rooms afterward is on you, and worth budgeting before rather than after.
Your water: Aggressive water chemistry shortens copper’s life and argues for PEX in some regions. The dataset carries national lifespans; your utility’s water quality report is the local correction.

Using it well

How to use the estimate against a repipe quote

A repipe is disruptive, so the temptation is to take the first bid that promises a short job. The bracket here is what the work costs when it is done properly, permits and patching included.

A bid well below the range is usually a repipe without permits or without wall repair, and both come due later: the first at sale time, the second the week the crew leaves. A bid above it should name the access problem that justifies it.

Ask every bidder whether the number includes permits, inspection and drywall patching, and how many days the water is off. Those answers separate a repipe from a rough-in left behind.

For reference

Every repipe material the calculator prices

The bands the calculator runs on, per fixture, on a run the plumber can reach.

Material	Installed cost per fixture, installed	Lifespan	Who it suits
PEX, trunk and branch	$250 – $700	40 – 50 years	Flexible tubing pulled through the existing routes, which is why it is the cheapest repipe: fewer holes, fewer hours, less drywall.
PEX, home-run manifold	$350 – $900	40 – 50 years	One dedicated line per fixture from a central manifold. More tubing, fewer joints in the walls, and every fixture shuts off on its own.
CPVC	$300 – $850	30 – 50 years	Rigid plastic, solvent-welded. Cheap and common in the South, brittle with age, and unforgiving of a hard knock in a cold crawl space.
Copper	$450 – $1,300	50 – 70 years	Soldered joint by joint, and priced accordingly. It outlasts everything here, tolerates heat, and fails early where the water is aggressive.

Opening a wall or a slab to reach the run is priced on top, and it decides whether you can stay in the house.

Keep planning

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