Repiping a house costs $4,000 to $15,000 for a typical 2,000-square-foot home, with most homeowners paying around $7,500 when switching from old galvanized steel to PEX. The exact price depends on your home’s size, the pipe material you choose, how accessible the pipes are, and where you live. If you have lead pipes or polybutylene pipes (gray plastic, common from the late 1970s through mid-1990s), replacing them is not just a budget decision but a health and safety priority.
This guide breaks down every cost factor so you can plan your budget and ask the right questions when you get quotes.
Why Pipes Need to Be Replaced
Most homeowners never think about their pipes until something goes wrong. But pipes have a lifespan, and when they start failing, the damage they cause can cost far more than a planned replacement.
Here is how long different pipe materials typically last:
| Pipe Material | Expected Lifespan | Common in Homes Built |
|---|---|---|
| Galvanized steel | 40 to 70 years | Before 1960 |
| Lead | 100+ years (but toxic) | Before 1986 |
| Polybutylene (gray plastic) | 10 to 25 years | 1978 to 1995 |
| Copper | 50 to 70 years | 1960s onward |
| CPVC | 50 to 75 years | 1970s onward |
| PEX | 50+ years | 1990s onward |
If your home was built before 1960, there is a real chance you still have original galvanized steel pipes. Galvanized pipes corrode from the inside out, restricting water flow and eventually leaking. If you see rust-brown or yellowish water coming from your taps, that is a classic sign.
Polybutylene is in a category of its own. The gray plastic pipes that were installed in millions of homes from 1978 to 1995 are known to degrade from chlorine in municipal water, developing microfractures that cause sudden leaks inside walls. If you have these, most plumbers will tell you to replace them sooner rather than later, regardless of your current water pressure.
Lead pipes are a serious health concern. The EPA’s updated Lead and Copper Rule requires water utilities to identify and replace lead service lines, but the pipes inside your home are your responsibility. Homes built before 1986 may have lead solder joints or lead supply lines. If you have a baby or young children, this should be your first call.
What Drives the Cost of Repiping
1. Home Size
The bigger the house, the more pipe runs you have, the more labor hours the job takes, and the higher the price.
| Home Size | Average Repiping Cost (PEX) | Average Repiping Cost (Copper) |
|---|---|---|
| Under 1,000 sq ft | $2,500 to $5,500 | $4,000 to $8,000 |
| 1,000 to 1,500 sq ft | $3,500 to $7,000 | $6,000 to $11,000 |
| 1,500 to 2,500 sq ft | $4,500 to $10,000 | $8,000 to $15,000 |
| 2,500 to 3,500 sq ft | $6,500 to $13,000 | $11,000 to $20,000 |
| Over 3,500 sq ft | $8,000 to $18,000 | $14,000 to $28,000 |
2. Pipe Material
The material you choose is often the biggest variable in the total cost. Here is a breakdown:
| Material | Material Cost (per linear foot) | Pros | Cons |
|---|---|---|---|
| PEX | $0.40 to $0.50 | Flexible, fast to install, freeze-resistant | Cannot be used outdoors, some codes restrict it |
| CPVC | $0.50 to $1.00 | Handles hot water well, widely available | More brittle than PEX, requires more fittings |
| Copper | $2.00 to $4.00 | Durable, proven track record, high resale value | Expensive, susceptible to acidic water corrosion |
| Stainless steel | $4.00 to $7.00 | Extremely durable, good for well water | High cost, harder to find qualified installers |
PEX has become the dominant choice for repiping in most of the country. It is flexible enough to run through walls with fewer fittings, which cuts labor time significantly. Copper is still preferred in high-end renovations and in some markets where buyers expect it.
3. Accessibility
If your pipes run through open crawl spaces or unfinished basement ceilings, your plumber can access them quickly. Pipes buried inside finished walls are a completely different story. Accessing in-wall pipes means cutting drywall, which adds both labor cost and drywall repair costs afterward.
Expect to add $500 to $2,000 to your estimate if significant wall opening is required. Some plumbers specialize in “soft repipe” techniques that minimize wall damage, so it is worth asking about that approach when you get quotes.
4. Number of Bathrooms and Fixtures
More bathrooms mean more branch lines, more shut-off valves, and more connection points. A house with one bathroom costs less to repipe than a house with three full baths, a half bath, a laundry room hookup, and an outdoor irrigation connection.
5. Labor Rates by Region
Plumber labor rates vary significantly across the US:
| Region | Typical Hourly Rate |
|---|---|
| Northeast (NY, NJ, CT, MA) | $100 to $200 per hour |
| West Coast (CA, WA, OR) | $90 to $175 per hour |
| Mid-Atlantic (VA, MD, DC) | $85 to $160 per hour |
| Mountain West (CO, AZ, NV) | $75 to $140 per hour |
| Midwest (IL, OH, MI, MN) | $65 to $120 per hour |
| Southeast (FL, GA, NC, SC) | $60 to $110 per hour |
| South Central (TX, OK, AR, LA) | $60 to $105 per hour |
Expect prices to run 20 to 40 percent higher in major metro areas like San Francisco, New York City, Boston, and Seattle compared to rural or suburban areas in the same state.
Signs You Need to Repipe Your House
You do not need to wait for a catastrophic pipe failure. Watch for these warning signs:
Discolored water. Brown or rust-colored water from any faucet, especially when you first turn it on, signals internal pipe corrosion. This is especially common with old galvanized steel.
Low water pressure throughout the house. If water pressure has slowly decreased over several years and there is no obvious cause, scale and corrosion buildup inside galvanized pipes is a likely culprit.
Recurring leaks in the same area. One pinhole leak in a copper pipe can be repaired. If you are patching leaks every year or two, the pipe itself is failing and patching is throwing money away.
Visible corrosion or greenish staining. Green staining around copper pipe joints means chlorine corrosion. Orange staining around galvanized joints means rust.
Metallic taste in water. Old galvanized or lead pipes can leach metals into your water supply. If your water has a metallic or bitter taste, have it tested. You can find certified testing labs through your state environmental agency or through the EPA’s drinking water resources.
Gray plastic pipes. If you can see gray plastic pipes in your basement, crawl space, or utility room, identify them. Polybutylene is a dull gray color and often has blue, gray, or black fittings. The Consumer Product Safety Commission (CPSC) documented thousands of polybutylene pipe failures, which is why a class-action settlement covered many affected homeowners in the 1990s and early 2000s. If you still have them, get a plumber to assess their condition.
Should You Repipe the Whole House or Just Repair?
This is the honest answer: a partial repipe is rarely the right long-term choice when pipes are uniformly old.
If your galvanized pipes were installed in 1960, they are all 65 years old. Replacing one section that has failed leaves you with 65-year-old pipe everywhere else. You will be back in a few years patching another section. A full repipe, while more expensive upfront, eliminates the problem across the whole house at once.
There are exceptions. If only one section of your plumbing is older or problematic (for example, a polybutylene supply line to a specific addition built in 1985, while the rest of the house has copper), a targeted replacement makes sense. A licensed plumber can help you think through this during a diagnostic visit.
What to Expect During a Repipe Project
A whole-house repipe typically takes 2 to 5 days for a standard home. Here is the general sequence:
- The plumber maps your existing water supply lines and creates a plan.
- Water is shut off to the house. If you have kids or pets, you will want to make arrangements for water access during the project.
- New lines are run. With PEX, this often means pulling flexible tubing through walls via small access holes. With copper, more cuts are needed.
- Drywall patches are made (either by your plumber or a separate drywall contractor).
- The system is pressure-tested and inspected.
- Water is restored and fixtures are reconnected.
Most municipalities require a permit for a full repipe. Do not hire a plumber who suggests skipping the permit. An unpermitted repipe can cause problems when you sell your home, and it may not be covered by your homeowners insurance if something goes wrong.
Will Homeowners Insurance Cover Repiping?
In most cases, no. Standard homeowners insurance covers sudden and accidental water damage, not gradual deterioration. If a pipe bursts today and floods your living room, insurance will likely cover the water damage cleanup and repairs, but not the cost to replace aging pipes.
That said, it is worth reviewing your policy carefully and calling your insurance agent before starting a repipe project. Some policies have endorsements for service lines or specific pipe-related coverage. Check with your insurer about whether documenting a repipe could lower your premiums or prevent a claim denial later.
If your water damage is the result of a covered peril, review FEMA’s flood insurance resources to understand what federal programs may be available to you, especially if you are in a flood zone.
How to Get an Accurate Quote
When you call plumbers for estimates, ask these specific questions:
- Are you licensed and insured in this state? (Verify with your state licensing board.)
- What pipe material do you recommend for my home and why?
- Does the quote include permit fees?
- Who is responsible for drywall repair after the job?
- How long have you been doing whole-house repipes?
- Can you provide references from similar projects?
Get at least three written quotes. A low quote that excludes permit fees or drywall repair can end up costing more than a higher quote that includes everything. Compare apples to apples by asking each plumber to quote the same scope of work.
The National Association of Home Builders (NAHB) maintains resources on finding qualified contractors that can help you understand what credentials to look for.
Financing a Repipe
Because a full repipe is a significant expense, many homeowners finance it rather than paying out of pocket. Common options include:
Home equity line of credit (HELOC). If you have equity in your home, a HELOC often offers the lowest interest rate. The interest may also be tax-deductible if the loan is used for home improvement. Check IRS Publication 936 for details on deductibility rules.
Personal loan. Unsecured personal loans are faster to get than a HELOC and do not require equity, but interest rates are typically higher.
Plumber financing. Many plumbing companies offer in-house financing or partnerships with lenders. Read the terms carefully, especially for deferred-interest promotions.
Energy-efficiency programs. If your repipe is combined with water-saving upgrades (like low-flow fixtures or a new water heater), check whether your utility company or state offers rebates or low-interest financing. Your state’s energy office can point you to available programs.
Official Resources
- EPA Lead and Copper Rule: epa.gov/ground-water-and-drinking-water/lead-copper-rule-revisions
- EPA Find a Certified Water Testing Lab: epa.gov/ground-water-and-drinking-water
- Consumer Product Safety Commission (CPSC) on Polybutylene Pipes: cpsc.gov
- HUD Guidelines on Safe Housing: hud.gov
- IRS Publication 936 (Home Mortgage Interest Deduction): irs.gov/publications/p936
- FEMA Flood Insurance: fema.gov/flood-insurance
- NAHB Find a Builder/Contractor: nahb.org
Repiping your home is one of those projects that nobody looks forward to, but living with failing pipes is worse. Old or compromised pipes can silently damage walls, ceilings, and floors for months before you even notice. Getting quotes now, while the situation is manageable, is almost always less expensive than waiting for a midnight flood.