Cost to Repipe a House in 2026: Full Price by Home Size and Pipe Material
Repiping a 1,500 to 2,000 sq ft home costs $6,000 to $15,000 using PEX tubing in 2026. A smaller home (under 1,200 sq ft) runs $4,000 to $8,000. A larger home (2,500+ sq ft) runs $12,000 to $25,000+. The cost to repipe a house depends on home size, number of bathrooms and fixtures, pipe material selected (PEX vs copper vs CPVC), and whether drywall repairs and patching are included in the quote.
Whole-house repiping is a major plumbing project that replaces all the water supply pipes in a home, from the main shutoff to every fixture. It is typically done when galvanized steel pipes (installed in homes built before 1970) have corroded to the point of recurring leaks, restricted flow, or discolored water, or when polybutylene pipes (installed 1978 to 1995) have degraded and begun leaking. PEX (cross-linked polyethylene) has become the dominant repipe material in US residential plumbing since the 2000s for its flexibility, freeze-resistance, and competitive cost versus copper.
The pipe cost calculator estimates whole-house repipe cost based on your home size, fixture count, and pipe material choice.
Open the Pipe Cost Calculator →Repipe Cost by Home Size in 2026
| Home size | Typical bathrooms | PEX repipe cost | Copper repipe cost |
|---|---|---|---|
| Under 1,000 sq ft | 1 to 1.5 bath | $3,500 to $6,500 | $5,000 to $9,000 |
| 1,000 to 1,500 sq ft | 1.5 to 2 bath | $4,500 to $9,000 | $6,500 to $13,000 |
| 1,500 to 2,000 sq ft | 2 to 2.5 bath | $6,000 to $12,000 | $9,000 to $18,000 |
| 2,000 to 2,500 sq ft | 2.5 to 3 bath | $8,000 to $16,000 | $12,000 to $24,000 |
| 2,500 to 3,500 sq ft | 3 to 4 bath | $12,000 to $22,000 | $18,000 to $33,000 |
Pipe Material Comparison: PEX vs Copper vs CPVC
| Material | Material cost | Lifespan | Freeze resistance | Corrosion resistance | Notes |
|---|---|---|---|---|---|
| PEX (cross-linked polyethylene) | $0.40 to $0.80/ft | 40 to 50 yrs | Excellent (expands, rarely bursts) | Excellent | Most common repipe material; flexible |
| Copper (type L, standard) | $2.00 to $5.00/ft | 50 to 70 yrs | Fair (rigid; bursts when frozen) | Excellent | Premium; code-universal; solder joints |
| CPVC (chlorinated PVC) | $0.50 to $1.20/ft | 30 to 40 yrs | Poor (brittle; cracks when frozen) | Excellent | Hot and cold supply; solvent weld |
| Galvanized steel (existing, old) | Not used for repipe | 40 to 70 yrs (new); 20-40 in service | Poor | Poor (corrodes internally) | Being replaced, not installed |
| Polybutylene (existing, failed) | Not used for repipe | Failed by 10-25 yrs | Poor | Poor (chlorine degradation) | Subject of class action; must replace |
Signs You Need to Repipe Your House
Repipe your home when: multiple plumbing leaks have occurred in different locations within 2 to 3 years (not the same pipe repeatedly, but different pipes indicating system-wide deterioration); hot water arrives discolored (orange or rust-brown) throughout the house, indicating internal corrosion of galvanized pipes; water pressure is consistently low at all fixtures simultaneously (not just one fixture), indicating constricted pipes from mineral buildup or corrosion; a plumber finds polybutylene pipes during a repair or inspection (polybutylene requires proactive replacement before widespread failure); the home is on well water and has never been repiped (well water minerals accelerate galvanized pipe corrosion faster than municipal water); or a home inspection flags the existing pipe material as requiring replacement as a condition of sale or financing. For related water heater replacement that often accompanies repiping, our water heater replacement guide covers timing the two projects together. For bathroom faucet upgrades that can be done during repipe wall access, our faucet replacement cost guide covers the fixture cost to plan alongside the pipe work.
What Drives Repipe Cost Variation
Wall and ceiling access requirements
Repiping requires accessing pipes behind walls and above ceilings. The plumbing contractor cuts access holes to route new pipe, then either patches the drywall themselves (included in some quotes) or leaves patching to a separate drywall contractor (common). A slab-on-grade home or a home with concrete walls has more limited access options and may require more creative routing or saw-cutting in rare cases. A home with an accessible attic and open crawl space allows the plumber to run significant pipe lengths without cutting walls, reducing labor and drywall repair cost.
Number of fixtures and stories
Each fixture (toilet, sink, shower, hose bib, ice maker, dishwasher connection) adds to the linear footage of pipe and the number of connections. A home with 3 full bathrooms plus a kitchen, laundry, and 4 exterior hose bibs has far more fixture connections than a 1-bath home of the same square footage. Two-story homes require pipe to run vertically through walls, which requires more cutting and more precise fishing of pipes through fire-stop plates.
Three Real Repipe Projects
Example 1: Galvanized to PEX repipe in Phoenix, Arizona
A homeowner with a 1965-era 1,400 sq ft, 3-bedroom/2-bath home experiencing recurring leaks (third galvanized leak in 18 months) and rust-colored hot water. Whole-house PEX repipe: all supply lines from main shutoff to all 12 fixtures. PEX material: 380 lft at $0.55/ft = $209. PEX fittings and manifold: $480. Labor (2 licensed plumbers, 3 days): $4,800. Drywall patching (done by plumbing crew): $780. Permit: $145. Total: $6,414. The homeowner also replaced the 12-year-old water heater at the same time (scheduled access to the utility room was already arranged): $1,180 additional. Combined project: $7,594. Both water heater and repipe done with one permit and one disruption.
Example 2: Polybutylene repipe before sale in Atlanta, Georgia
A homeowner selling a 1988 home (2,000 sq ft, 3-bed/2.5-bath) with polybutylene pipes discovered during the buyer’s inspection. The buyer required polybutylene replacement as a condition of closing. Emergency repipe completed in 4 days. Whole-house PEX repipe (19 fixtures): $11,200. Drywall patching by separate contractor: $2,400. Total: $13,600. The polybutylene discovery nearly killed the sale; the seller negotiated the repipe cost as a seller concession and the sale closed on schedule. Post-repipe inspection passed without issue. The seller’s total out-of-pocket: $13,600, which was deducted from net proceeds at closing.
Example 3: Copper repipe in a historic Denver, Colorado home
A homeowner repiping a 1930s 1,800 sq ft bungalow with original galvanized pipes where the local historic district required the plumbing be replaced with copper to maintain the home’s historic material standards (an unusual requirement, but the HOA had a plumbing materials guideline). Copper Type L repipe (all supply lines): $15,800. The copper cost approximately $9,200 more than an equivalent PEX installation would have. Copper was the correct choice for this situation: it satisfied the HOA requirement, added to the home’s appraised value (copper plumbing is viewed favorably by appraisers in historic markets), and has an expected lifespan of 50 to 70 years.
The pipe cost calculator gives you a cost range for PEX or copper repiping based on your home size and fixture count.
Calculate Repipe Cost →Frequently Asked Questions About House Repiping
How much does it cost to repipe a house?
Repiping a 1,500 to 2,000 sq ft home with PEX costs $6,000 to $12,000 installed in 2026, including materials, labor, and permit. Smaller homes (under 1,200 sq ft) run $4,000 to $8,000. Larger homes (2,500+ sq ft) run $12,000 to $22,000. Copper repiping costs 50 to 80 percent more than PEX for the same home due to material and labor cost differences. Drywall patching and painting are often quoted separately; confirm what is included before signing any repipe contract.
How long does whole-house repiping take?
Whole-house repiping takes 2 to 4 days for a standard 1,500 to 2,000 sq ft home with a crew of 2 to 3 licensed plumbers. Larger or more complex homes take 4 to 7 days. The water is off during active pipe work (usually 6 to 8 hours per day); the home is livable each evening after work stops. Drywall patching and painting add 1 to 3 additional days if included in the scope.
Is PEX or copper better for repiping?
PEX is the superior choice for most US residential repipes in 2026: it costs significantly less than copper (material and labor), is easier and faster to install in existing walls, is more freeze-resistant than copper (PEX expands rather than splitting under freezing), and has an expected 40 to 50-year lifespan. Copper is chosen when: local code requires it, the homeowner prefers it for resale value signaling, or the home is in a historic district with material requirements. Copper’s longer lifespan (50 to 70 years) and perceived quality advantage rarely justify the significant cost premium for most homeowners.
What is polybutylene pipe and why does it need to be replaced?
Polybutylene (PB) is a gray flexible plastic pipe installed in US homes from approximately 1978 to 1995. It was inexpensive and easy to install but develops micro-fractures over time from reaction with chlorine in municipal water, leading to leaks and pipe failures. A class action settlement (Cox vs Shell Oil) provided some homeowner compensation in the 1990s. Most insurance companies today either refuse to insure homes with polybutylene or charge significantly higher premiums. Buyers and lenders routinely require polybutylene replacement before closing on a home where it is discovered.
Will repiping my house increase its value?
Repiping increases a home’s value primarily by removing a significant negative (failing pipes) that would otherwise be a deal-killer or price reduction point at sale. A home disclosed as having galvanized or polybutylene pipes sells for less or requires seller concessions; a freshly repiped home with PEX or copper has no pipe-related negotiating liability. In markets where home inspectors consistently flag pipe material (especially polybutylene), repiping before listing often recovers its cost or more in avoided price reduction.
Does homeowner insurance cover repiping?
Standard homeowner insurance covers sudden, accidental pipe damage (a pipe that bursts suddenly) but does not cover gradual deterioration or the cost of replacing pipes that have not yet failed. The damage caused by a failed galvanized or polybutylene pipe (water damage to floors, walls, and personal property) is typically covered subject to the deductible; the pipe replacement itself is a maintenance cost not covered by insurance. Some specialty programs offer “service line coverage” as an add-on that covers pipe replacement; verify your specific policy terms.
Can I repipe my house myself?
Whole-house repiping requires a plumbing permit and licensed plumber inspection in all US jurisdictions. While some jurisdictions allow homeowners to perform their own plumbing work in their primary residence, a whole-house repipe involves significant rough-in work behind walls, connections to the water main and all fixtures, and a comprehensive permit inspection. Most homeowners who consider DIY repiping find the scope is significantly larger than anticipated; the licensed plumber’s permit, tools, and experience with pipe routing in existing walls produce a faster, cleaner result than DIY in most cases.
How do I find a reputable repiping contractor?
Request state plumbing license verification (available through your state’s contractor licensing board); verify general liability and workers compensation insurance; check reviews on Google, Yelp, and the BBB; ask specifically about the scope of drywall patching included in the quote; get at least three quotes that all specify the same pipe material and fixture count; ask for references from repipe projects completed in the past 12 months in similar homes. Avoid any contractor who asks for large upfront payment before starting work or who cannot provide proof of insurance and licensing.
Related Calculators and Guides
For plumbing code requirements and pipe material approvals, the International Plumbing Code (IPC) governs material standards for residential plumbing in most US jurisdictions. The NSF International certification program certifies plumbing pipe and fitting materials for safety and performance in potable water applications.