How much does it cost to repipe a house in 2026?

Whole-house repipe costs $4,800–$22,000 in 2026 depending on material and home size. PEX repipe of a 2,000 sq ft home runs $7,200–$8,400 nationally. Copper repipe of the same home runs $14,500. Slab-on-grade homes add 30–50% because lines must be re-routed through walls and ceilings rather than cut through concrete.

Is PEX or copper better in 2026?

PEX-A is the modern default for residential supply lines: cheaper ($7K vs $14K for a 2,000 sq ft home), more freeze-resistant, faster to install, and silent. Copper still wins on three fronts: longevity in alkaline water (60–80 yrs), resale perception in luxury markets, and resistance to rodent damage. For 90% of U.S. homes built post-2010, PEX-A is the recommended choice.

Do I have to repipe if I have polybutylene?

Yes — polybutylene (gray plastic, installed 1978–1995) was the subject of a class-action settlement and is now uninsurable in many states. Failure rates climb rapidly after year 20. If you discover polybutylene during inspection, budget $7,000–$11,000 for a PEX repipe and treat it as 'replace within 12 months.'

How long does a whole-house repipe take?

A typical 2,000 sq ft PEX repipe takes 2–4 days for the plumbing work, plus another 3–5 days for drywall patching and painting. Copper repipes take 4–7 days. You can stay in the home for most of it, but expect water shutoffs of 4–8 hours per day.

What does a partial (single-bathroom) repipe cost?

A single bathroom or single 'wet wall' repipe runs $1,800–$3,200 in 2026 including drywall repair. This is the right call when one fixture is failing and the rest of the system is sound. It's the wrong call when you have systemic issues like polybutylene or low pressure throughout.

Will my homeowner's insurance pay for a repipe?

Insurance generally pays for water damage from a sudden pipe failure (drywall, flooring, contents) but does not pay to replace the failing pipes themselves. Once you've had 2+ leak claims, insurers may non-renew unless you complete a full repipe at your own expense.

Home/Calculators/Plumbing Replacement Cost Calculator

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Plumbing Replacement Cost Calculator

Bottom line

In 2026, repiping a U.S. home typically costs $4,800–$22,000, with the national median near $8,400 for a 2,000 sq ft single-story PEX repipe and $14,500 for copper.

Typical range

$4,800 – $22,000 (whole-house repipe)

National median

$8,400 (PEX, 2,000 sq ft) · $14,500 (copper, 2,000 sq ft)

Biggest cost driver

Material (copper costs ~1.7× PEX) + access (slab vs crawl vs basement)

When to act

Replace galvanized at any age, polybutylene immediately, copper at 50+ yrs with pinhole leaks, PEX at 40+ yrs.

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Whole-house plumbing pricing depends on five variables: material (PEX-A, PEX-B, copper Type L, CPVC), home square footage, number of fixtures, number of stories, and access conditions (slab-on-grade is the most expensive scenario, basement homes the cheapest). This calculator uses 2026 plumber labor rates plus material commodity pricing to estimate both partial (single bathroom or wet wall) and full repipes.

Use this page if you have multiple pinhole leaks, low water pressure throughout the house, discolored water, or a pre-1995 home with polybutylene or galvanized supply lines. Output includes a confidence band, a recommended material based on your water chemistry, and a drywall-restoration cost estimate.

2026 installed whole-house repipe cost by material and home size

All figures reflect 2026 installed cost (median U.S. pricing including labor, materials, permits, and disposal).

Material	1,500 sq ft	2,000 sq ft	2,800 sq ft	Lifespan
PEX-B (basic)	$5,400	$7,200	$10,800	40–50 yrs
PEX-A (premium)	$6,400	$8,400	$12,400	50+ yrs
CPVC	$5,800	$7,800	$11,400	40–60 yrs
Copper Type L	$11,200	$14,500	$21,200	50–80 yrs
Drain/waste lines (PVC)	$4,200	$5,800	$8,400	75+ yrs
Single-bathroom repipe	$1,800	$2,400	$3,200	—

Regional cost adjustments

Northeast

1.20–1.40×

Boston 2,000 sq ft PEX-A ≈ $11,500

West

1.25–1.50×

Los Angeles slab repipe PEX ≈ $13,200

Midwest

0.92–1.02×

Chicago 2,000 sq ft PEX ≈ $8,200

Southeast

0.85–0.95×

Atlanta 2,000 sq ft PEX ≈ $7,400

Southwest

0.90–1.05×

Phoenix slab PEX ≈ $9,800

Decision framework

Replace immediately

Trigger: Polybutylene supply, galvanized with low pressure, 3+ pinhole leaks/year

Action: Full repipe; insurance often denies future leak claims on known-bad systems

Plan within 24 months

Trigger: Copper >45 yrs in acidic water, isolated pinhole leaks, discolored water

Action: Build $10K sinking fund; convert to PEX-A on next remodel

Repair only

Trigger: Single leak in PEX/copper system <30 yrs old

Action: Spot repair $250–$900

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Frequently asked questions

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How much does plumbing repipe cost in 2026?Home System Lifespan Calculator Home Repair Cost Estimator Annual Maintenance Budget Calculator

Topics covered

plumbing replacement cost calculator

whole house repipe cost 2026

pex repipe cost

copper repipe cost

polybutylene repipe cost

slab repipe cost