Replumbing a house typically costs $4,000-$20,000, with many standard projects averaging about $9,000. The final price depends on home size, pipe material, access behind walls or beneath floors, local labor rates, and whether drywall repairs are included.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Whole-house repipe | $4,000 | $9,000 | $20,000 | Typical existing home, labor and new supply lines |
| Cost per square foot | $2.50 | $5 | $10 | Varies with access and pipe material |
| Drywall repair and paint | $500 | $1,500 | $4,000 | Often quoted separately |
| Permit and inspection | $100 | $400 | $1,000 | Depends on local rules and scope |
What a whole-house repipe usually costs
A basic repipe in a small, single-story home may run $4,000-$7,000. A typical 1,500- to 2,000-square-foot house with two bathrooms often falls around $7,000-$12,000, while a larger or difficult-to-access home can reach $15,000-$20,000 or more. These estimates generally cover replacing interior water-supply pipes, connecting fixtures, and testing the system; sewer and drain replacement is usually separate.
For a straightforward 1,800-square-foot home, budgeting $8,000-$12,000 is a reasonable starting point. PEX tends to cost less than copper, and prices commonly rise in expensive metro areas or when walls, ceilings, or concrete must be opened. Assumptions: U.S. labor rates, standard fixture count, ordinary access, and no major structural repairs.
How pipe, labor, and wall repairs shape the quote
Contractors may bundle labor and materials, so estimates should identify what is included. The ranges below represent common portions of a full project, not charges that always apply independently.
| Quote component | Typical price | What changes the charge |
|---|---|---|
| PEX pipe and fittings | $500-$2,000 | Pipe length, diameter, and fitting count |
| Copper pipe and fittings | $1,500-$5,000 | Copper grade, market prices, and layout |
| Plumbing labor | $3,000-$10,000 | Crew size, access, and fixture count |
| Drywall patching and paint | $500-$4,000 | Number and size of openings |
| Permit, testing, and disposal | $100-$1,000 | Local fees and old-pipe removal |
Ask for separate labor, pipe, permit, and restoration amounts so competing quotes can be compared on equal scope. Some plumbing bids include only small access-hole patches, not finished drywall, texture matching, or paint.
Why PEX, copper, and home size change the price
PEX is flexible and can require fewer fittings, making it a common lower-cost choice. Copper is durable and familiar to many contractors but generally costs more for both material and installation. In many markets, changing from PEX to copper can add roughly $1,500-$4,000 to a typical home project, depending on pipe length and current material pricing.
Fixture count and layout matter alongside square footage. A 1,000-square-foot home with one bathroom may need substantially less pipe than a 1,500-square-foot home with three bathrooms. Homes over 2,500 square feet, houses with more than three bathrooms, or layouts with long runs between the water heater and fixtures can push labor and material totals higher.
Confirm that the estimate states the pipe type and whether it replaces every hot- and cold-water branch. A partial repipe can cost less initially but may leave aging pipes in service. For a rough per-area comparison, many full repipes fall near $2.50-$10 per square foot, with access and fixture count affecting the rate.
How many labor hours does a typical repipe take?
A three-person crew may spend 2-5 working days on an accessible, average-size house. That can represent about 40-120 crew labor hours, depending on how many branches are replaced and how much patching is included. At an illustrative plumbing labor rate of $75-$150 per hour, labor is a major share of the total.
Get the expected water shutoff period and work schedule in writing. Contractors may restore service at the end of each day, but complex layouts can require longer interruptions. Finished ceilings, tile, tight crawl spaces, and occupied homes can extend the job.
Regional plumbing rates can move the estimate
Labor and permit charges vary by market. A similar job may cost about 10%-20% less in a lower-cost rural area than the national middle range, while a high-cost coastal city can run 15%-30% higher. Dense urban access, parking, older building requirements, and higher contractor overhead may add to the difference.
Compare quotes from plumbers serving the same local area rather than relying on a national average alone. Regional differences are not fixed surcharges; pipe choice, project scope, and the condition of the home can outweigh location.
When access cuts, permits, and disposal add charges
Opening and restoring finished surfaces can add $500-$4,000, especially with plaster, tile, or ceilings. Removing old pipe may be included or itemized, and disposal can add roughly $100-$500. A permit commonly costs $100-$1,000, but local inspection requirements determine the actual fee. Lead-related work or unusual materials may require specialized handling.
Clarify whether the bid includes permits, inspection, debris removal, and finished wall repairs. If the plumber only patches access holes, a separate drywall contractor may be needed to tape, texture, and paint the affected rooms.
Repipe or repair when only one line is failing?
A small, accessible leak repair may cost $300-$1,500, while replacing a short branch can run roughly $500-$2,500. Those repairs can make sense when the rest of the system is in good condition. Repeated leaks, widespread corrosion, or deteriorating galvanized steel can make a whole-house repipe more practical than paying for recurring repairs.
Ask the plumber to identify the failed pipe material and the condition of remaining lines before choosing a partial repair. A low repair quote does not address other aging branches, while a full repipe should specify exactly which lines, valves, and connections are replaced.
Which scope choices can lower a repiping bill?
Request quotes for the same pipe material, fixture count, access openings, permit handling, and restoration scope. If the house has a mix of newer and older plumbing, ask whether a defined partial repipe is safe and code-compliant instead of replacing unaffected lines. Avoid paying for premium materials or fixture upgrades that are not needed for the plumbing work.
Clearing under-sink cabinets and providing access to crawl spaces can reduce crew delays, but homeowners should not cut walls or disconnect plumbing without agreement. Scheduling during a contractor’s less-busy period may improve availability, though timing discounts vary and should be compared against the written scope.