Replacing a home’s plumbing typically costs $4,000-$15,000, with an average near $8,000 for a standard whole-house water-supply repipe. The final price depends on house size, pipe material, access behind walls, local labor rates, and whether drain lines and fixtures are included.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Supply-line repipe | $4,000 | $8,000 | $15,000 | Typical 1,500-2,500-square-foot home |
| PEX pipe installation | $4,000 | $7,000 | $11,000 | Usually the lower-cost common option |
| Copper pipe installation | $8,000 | $13,000 | $20,000 | Higher material and installation expense |
| Supply and drain replacement | $10,000 | $20,000 | $35,000+ | Scope and access can raise totals |
What a whole-house water-line replacement usually costs
A standard repipe replaces the hot- and cold-water supply pipes, not necessarily the drains, sewer lateral, water heater, or plumbing fixtures. For a 1,500-2,500-square-foot house with one to three bathrooms, a typical project runs $4,000-$15,000; difficult access or premium copper can push it above $20,000. Prices generally include pipe, labor, connection work, and basic testing, but may exclude wall repair and painting.
For many homes, budget about $5-$10 per square foot for a supply-line repipe. That broad planning rate varies with layout, material, and local labor. Assumptions: U.S. home with normal access, standard fixture count, and no major structural repairs.
How pipe materials, labor, and wall repairs shape the quote
Quotes should distinguish plumbing work from restoration. Some contractors include opening and patching access holes; others leave drywall finishing to a separate trade. Ask whether the price covers permits, fixture reconnection, cleanup, and testing.
| Quote item | Typical range | Pricing basis | Usually covers |
|---|---|---|---|
| PEX pipe and fittings | $1-$3 | Per linear foot | Pipe, fittings, and basic supplies |
| Copper pipe and fittings | $3-$8 | Per linear foot | Material, with grade affecting price |
| Plumber labor | $75-$150 | Per hour | Installation and fixture connections |
| Permits and inspection | $100-$500 | Per project | Local application and inspection charges |
| Drywall patching | $300-$2,000 | Per project | Basic closure; texture and painting may cost extra |
Labor and access often account for more of the total than the pipe itself. A labor estimate can be checked with ; a crew may spend 1-3 days on installation, with added time for access and repairs.
Which house size, bathroom count, and access conditions raise prices?
Square footage is only a rough guide. A 1,000-square-foot one-bath home may need less pipe and fewer connections than a 1,500-square-foot two-story house with three bathrooms. Each additional bathroom or kitchen connection can add roughly $500-$2,000, depending on distance and complexity.
Access is a major price driver: an open basement or crawlspace may keep a project near the lower range, while finished walls, tile, or slab construction can add $1,000-$5,000 or more in opening and restoration work. A home with more than 2,500 square feet, three or more bathrooms, or long runs exceeding 100 feet can require a larger crew or additional labor days.
Ask whether the estimate covers every branch line and fixture connection, not just the main runs. Older shutoff valves, corroded connections, and undersized existing lines may need separate allowances.
Where a supply repipe ends and drain replacement begins
Replacing pressurized supply lines is not the same project as replacing drain, waste, and vent pipes. A drain-line replacement may add $3,000-$15,000 or more, depending on pipe location, access, and whether work involves a slab or underground sewer. A sewer lateral outside the home is commonly quoted separately and can cost several thousand dollars.
Replacing fixtures is also optional. Reconnecting existing sinks, toilets, and faucets is usually part of a repipe quote, while new fixtures may add $150-$1,000 or more each, plus installation. Request separate prices for supply pipes, drains, fixtures, and sewer work to avoid comparing different scopes.
How regional labor rates change a plumbing repipe estimate
Labor costs vary across the country. A quote in a high-cost metro area may run 15%-30% above a comparable project in a lower-cost region, while rural travel or limited contractor availability can also increase charges. Differences in permit fees, code requirements, and home construction can make regional averages imperfect comparisons.
For a standard $8,000 project in a moderate-cost market, a comparable estimate might be about $9,200-$10,400 in a high-cost metro before unusual access work. Compare local quotes using the same pipe material, fixture count, wall-repair scope, and permit allowance.
When PEX or copper makes more sense for the budget
PEX generally costs less to install and can be routed through smaller access openings, making it a common choice for budget-conscious repipes. Copper costs more but may suit owners who prefer rigid metal piping or have project requirements that favor it. Local codes and installer recommendations determine which materials are permitted and appropriate.
For a typical house, PEX supply-line work may fall around $4,000-$11,000, compared with roughly $8,000-$20,000 for copper. These are project estimates, not material-only prices. Choose based on the complete installed quote, warranty terms, and code compliance rather than the pipe price alone.
Ways to reduce repiping costs without cutting necessary work
Keep the scope clear before work begins. Ask contractors to identify exactly which lines are being replaced, which fixtures are reconnected, and what restoration is included. If drains are in good condition, request a separate inspection and price instead of automatically adding drain replacement.
Get at least three itemized quotes and compare labor, material, permits, access cuts, cleanup, and warranty. Scheduling routine work rather than emergency service may avoid rush charges, and completing planned repairs during the same visit can reduce repeat trip fees. Do not save money by omitting required permits, pressure testing, or replacement of visibly failing sections.
What wall opening, cleanup, and permit charges may add
Access and restoration can be billed separately from the repipe. Small drywall patches may cost a few hundred dollars, while extensive wall, ceiling, cabinet, or tile repairs can exceed $2,000. Slab work, asbestos precautions in older homes, or relocating pipes can add substantially more and should be identified before signing.
Permit costs often range from $100-$500, but local fees and inspection rules differ. Confirm whether the plumber obtains the permit and schedules inspection. A written quote should list exclusions and explain how hidden damage or added work will be priced.