Ask three plumbers for a repipe quote and you may get three numbers that look unrelated. They are not, once you separate what is being priced: tubing, fittings, labor, wall patching, permit, fixtures and cleanup. The ranges here are national guide figures gathered from published 2026 cost pages, so use them to judge a quote, not as a Torrance price list. Our repiping hub covers the process.
So what does PEX cost for a full repipe?
Guides describe a typical 2,000-square-foot house as a four-to-ten-thousand-dollar job centered near $6,500, while a house closer to 1,500 square feet runs $4,000 to $8,500. By area that works out to roughly $2 to $7 a square foot. Sources disagree at the edges, so aim for the middle and let a written quote settle it.
| House size | PEX, guide range | Copper, guide range |
|---|---|---|
| Roughly 1,500 sq ft | $4,000-$8,500 | $7,000-$15,000 |
| Two thousand sq ft | $4,000-$10,000 | $8,000-$18,000 |
| By floor area | $2-$7 per sq ft | $4-$14 per sq ft |
Notice how wide each band is. A single outlier source lists PEX from $2,000 for a small house, which reads like a best case with easy access and no patching, while large or awkward jobs run past $10,000. Neither is wrong; they describe different houses.
What makes one repipe cost more than another?
Labor is the biggest slice, about 70 percent in some guides, so whatever slows the crew raises the bill. Access, bathroom and fixture count, slab foundations, upper floors, wall and ceiling repair, permits and material choice all count. Patching alone can add $1,500 to $3,000.
How each factor plays out:
- Access. Open attic or crawl space means pipe can be pulled without touching finishes. Finished walls mean cutting and patching.
- Bathrooms and fixtures. Each fixture needs a supply line and a shutoff, so three bathrooms mean more work than one, whatever the floor area.
- Slab. Plumbers often reroute through the attic rather than break concrete, which changes both price and the amount of drywall repair.
- Number of stories. Vertical runs through finished walls cost time.
- Valves and extras. Fresh shutoffs at each fixture, a new pressure regulator or a new main valve are common additions to the scope.
- Permit and inspection. A repipe is generally permitted and inspected through the City of Torrance Building and Safety Division.
If one bathroom is the only trouble spot, ask for a price on that group of fixtures alone, then compare it with the whole house. Our bathroom remodel plumbing page shows what is worth doing while walls are open.
How does copper's price compare with PEX?
Copper typically costs about twice what PEX does, installed, according to published guides. Tubing alone is $2 to $8 per linear foot for copper against $0.40 to $2 for PEX. Copper is stiffer, takes more fittings and labor, and has the longer track record.
Flow differences are small. Copper has a slightly larger bore at the same nominal size, and PEX makes up some of that with fewer fittings; Wikipedia's PEX entry notes the pressure-drop advantage of fewer joints. A flow chart by pipe size matters less than whether the main trunk line is sized for the fixtures it feeds. The material question has its own page, PEX versus copper, and repiping costs for the whole house compares scenarios.
What does replacing polybutylene pipe cost?
Polybutylene replacement is priced like any other whole-house repipe, usually in the PEX range above, since PEX is the common replacement. The difference is the reason: this gray or blue plastic pipe, associated with homes built in roughly the late 1970s through the mid-1990s, has a reputation for failing.
It can turn up in houses built or remodeled in that window. If you have it, collect a written quote before a leak forces an emergency, because planned work is cheaper and easier to schedule than flooded drywall. More on that sits under polybutylene pipe replacement. For old galvanized steel, see galvanized pipe replacement cost.
Does a mobile home or small house cost less?
Often the job is smaller, with runs under the floor and few fixtures, but access beneath the structure and the skirting drive the price, and some materials differ. No reliable published cost range for mobile home repipes turned up in my search, so rely on a quote, not a guess.
A one-bath cottage, or a condo repiped within the unit, tends to sit at or below the bottom of the ranges above, simply because there is less pipe to run. Condo and townhome owners should check the association's rules and which lines belong to the building before ordering work.
How should I read a repipe quote?
The best quotes name the pipe brand, the fixture count, the permit and inspection, wall and ceiling patching or an allowance for it, cleanup, start and finish dates and the warranty. Ask about hidden damage found mid-job. Round numbers with no scope are the ones to challenge.
California law backs you up here. Above $500, the agreement must be written and carry the contractor's license number, the scope, a payment schedule and the party responsible for permits. A down payment is limited to the lower of 10 percent or $1,000, later payments follow progress, and any change needs signatures.
Compare two or three quotes built on the same scope. A far lower one probably omits something; a far higher one should explain what it adds.
Common questions
Is PEX really cheaper than copper to install?
Yes, in nearly every published guide, mainly because it goes in faster and needs fewer fittings. Expect roughly half the installed price of copper for the same house. The savings narrow if the job is mostly patching walls or fixing a slab, since those costs are the same for both materials.
How many days will it take?
A whole-house PEX repipe is commonly described as days rather than weeks, with the taps dry for some hours daily. Ask for a written schedule and for how water will be handled overnight, so showers and laundry can be planned.
Do we need a hotel for a few nights?
Many households do, though the water is off for stretches and there is dust and drywall work. Ask the plumber for the hours water will be off. A house with small children, a home office or health needs may be more comfortable elsewhere for a day or two.
Will a repipe raise my property value?
It can help in a sale, since buyers and inspectors worry about old galvanized or polybutylene pipe, but I have no verified figure for the effect. Keep the permit record, invoice and warranty paperwork; they show a buyer that the work was inspected.
How do I get a quote?
Put the house's age, the pipe you suspect and any leaks into the quote page; someone local then visits and writes up a price. Contractor licensing is verifiable through CSLB, and it is required once a job hits four figures.
For the wider picture, start with plumber in Torrance.
Sources used
- Published whole-house repipe cost guides, checked November 2026
- Cross-linked polyethylene (PEX), types and properties
- CSLB, home improvement contracts
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