How Much Does Whole-Home Repiping Cost?
Whole-home repiping, replacing all the water supply lines running through your house, typically costs $4,000 to $18,000, with many homes landing around $8,000. That’s a wide range, and where your home falls depends on its size, layout, the pipe material chosen, and how hard the plumbing is to reach. Here’s what the price includes and what drives it.
What a Repipe Actually Covers
A whole-home repipe replaces the network of supply lines, hot and cold, that carry water from where it enters your home to every fixture: sinks, showers, tubs, toilets, appliances. It’s a planned replacement of the entire supply system, not a patch of one failing section. Plumbers open access points in walls and ceilings, run new pipe, connect all your fixtures, pressure-test the system, pass inspection, and then the walls are patched. The quote should account for that full scope, the pipe, the labor to route it throughout the house, and ideally the wall repair afterward. The process itself follows a set sequence: technicians open access points, run the new lines, connect every fixture, pressure-test the completed system to confirm there are no leaks, then call for an inspection before any walls are closed, and only after it passes does the patching begin. A quote that reflects all of those stages, not just the pipe, is the one that matches what actually happens on the job. (For more on this, see What Makes Whole-Home Repiping Cost More (or Less)?.)
Why the Range Is So Wide
The $4,000-to-$18,000 spread reflects how different homes are. A compact single-story home with accessible plumbing and one or two bathrooms sits toward the low end. A large, multi-story home with several bathrooms, finished walls, and hard-to-reach pipe runs lands at the high end. The number of fixtures and bathrooms is a major driver, each one is a connection point, so more of them means more pipe, more labor, and a higher cost. Your home’s specific size and complexity are what place you within that broad range.
The Role of Pipe Material
The material you choose meaningfully affects the price. PEX (cross-linked polyethylene), a flexible plastic tubing, is generally less expensive both in material and in labor, because its flexibility lets plumbers route it with fewer fittings and fewer wall openings. Copper costs more, both the material itself and the labor, since it’s rigid, requires more fittings and connections, and takes longer to install. Choosing PEX versus copper can shift the total noticeably, which is one reason the material decision is worth understanding before you get quotes. Both PEX and copper are approved for potable water and certified to plumbing standards, PEX carries NSF/ANSI certifications for drinking-water safety, so choosing the cheaper-to-install PEX isn’t a compromise on quality; it’s a legitimate way many homeowners bring the total down without giving anything up on safety or code-compliance. (For more on this, see PEX vs. Copper Repiping: Which Should You Choose?.)
Access and Wall Finishes
How easily the plumbing can be reached is a big cost factor. In a home where pipes run through an accessible basement, crawlspace, or attic, the plumber can route new lines with minimal wall opening. In a slab home or one with all finished walls, reaching the pipes means opening more drywall, and every opening is more labor and more wall repair afterward. The extent of wall opening and restoration your home requires can swing the cost substantially, which is why two similarly sized homes can quote very differently. A home with an unfinished basement or a roomy crawlspace lets a plumber run much of the new pipe through open space and tap up into walls only at the fixtures, whereas a slab-on-grade home with finished walls throughout forces openings at nearly every run, and that single difference in construction can account for thousands of dollars between two otherwise comparable houses.
What the Average Home Looks Like
Around $8,000 is a common figure for a typical single-family home, but treat any average cautiously, your home’s size, story count, bathroom count, material choice, and access determine your actual number far more than any average does. The best way to know your cost is a professional assessment that accounts for your specific home, not a rule of thumb. A quote based on walking your home is worth far more than a national average.
Getting an Accurate Number
Because size, layout, material, and access all move the price within that wide range, an accurate repipe quote requires a plumber to see your home, count the fixtures and bathrooms, assess how the pipes are routed and how much wall opening is involved, and discuss material options with you. Ask what the quote includes, especially whether wall repair is part of it, since that’s a major cost that’s sometimes quoted separately. When you’re ready for a real assessment of your home, connect with local pros below. (For more on this, see Questions to Ask Before a Whole-Home Repipe.)
Cost figures on this page were checked against published pricing on August 25, 2026. How we source cost data.
Frequently Asked Questions
Typically $4,000 to $18,000, with many homes around $8,000. Where you land depends on your home's size, number of bathrooms and fixtures, pipe material, story count, and how accessible the plumbing is.
Homes differ enormously. A compact single-story home with accessible plumbing is the low end; a large, multi-story home with many bathrooms and finished walls is the high end. Fixture and bathroom count is a major driver.
Yes, meaningfully. PEX is generally cheaper in both material and labor, since its flexibility means fewer fittings and wall openings. Copper costs more, being rigid, needing more connections, and taking longer to install.
Homes with pipes in an accessible basement, crawlspace, or attic need minimal wall opening. Slab homes or those with all finished walls require opening more drywall, and every opening adds labor and wall-repair cost.
Not always, it's sometimes quoted separately, and it's a major cost. Repiping opens walls throughout the house, so always ask whether the quote includes patching and restoring them or just the pipe work.