Most plumbing failures are not random, they are predictable. Galvanized steel pipes fail between 40 and 60 years. Polybutylene fails inside 20. Even copper has a 50-year ceiling in acidic water regions. A professional repipe service replaces every water supply line in your home before these timelines turn into flooded drywall and $15,000 insurance claims. Knowing when to schedule one and what it should cost protects you from both disaster and price-gouging.
Warning Signs You Need to Replace Your Pipes
Individual leaks are repair jobs. A pattern of problems is a whole-home repipe signal. Look for these symptoms together:
- Rust-colored or cloudy water after the house sits unused for a day
- Metallic taste from cold lines
- Dropping water pressure throughout the house, not just one fixture
- Three or more pinhole leaks in the last 24 months
- Pipes that are polybutylene (gray plastic installed 1978 to 1995) or galvanized steel
- Insurance carrier refusing to renew or raising premiums due to pipe material
If you see three or more of these signs, get a whole-home plumbing assessment. Pinhole leaks especially tend to cluster in waves because all the pipe in a run ages at the same rate.
Pipe Material Options
Modern whole-home pipe replacement uses one of three materials. Each has trade-offs worth understanding before you sign a contract.
PEX (Cross-Linked Polyethylene)
PEX-A from manufacturers like Uponor and Viega is the current gold standard for residential repipes. It flexes around obstacles, resists freeze damage better than rigid pipe, and installs 30 to 40 percent faster than copper. Expect a 50-year rated lifespan and pricing around $0.50 to $2.00 per linear foot for materials. The downsides are UV sensitivity (never run outside) and rodent damage in rare cases.
Copper Type L
Copper still has a following among traditional plumbers and in municipalities with strict codes. Type L copper is the residential standard, offering 50-plus years of service in non-acidic water. Material costs run $3 to $8 per linear foot, and labor is higher because every joint requires soldering. Budget 40 to 60 percent more than a comparable PEX job.
CPVC
Chlorinated polyvinyl chloride is the budget option at $0.40 to $0.90 per linear foot. It handles hot water better than standard PVC, but becomes brittle after 15 years and cracks easily during earthquakes or ground settling. Most reputable plumbers no longer recommend it for whole-home applications.
Typical Repipe Service Cost Ranges
National pricing for complete water supply replacement in 2026:
- 1,000 to 1,500 sq ft single-story: $3,500 to $7,500 (PEX), $7,000 to $12,000 (copper)
- 1,500 to 2,500 sq ft two-story: $5,500 to $10,500 (PEX), $10,000 to $16,000 (copper)
- 2,500 to 4,000 sq ft larger home: $8,000 to $14,000 (PEX), $15,000 to $24,000 (copper)
- Slab foundation surcharge: Add $1,500 to $3,500 for overhead rerouting
- Drywall patching and texture: $1,200 to $3,500 depending on wall access points
These numbers assume permit fees of $200 to $600 and inspection costs already included. Always insist on three written bids from licensed, bonded plumbers before committing.
What Actually Happens During the Job
A typical 2,000 square foot home takes three to five working days. The crew shuts off your main water supply each morning and restores service each evening, so you are not without water overnight. Day one is usually cutting access holes in drywall and ceilings. Day two and three is running new pipe, transitioning at fixtures, and pressure-testing the system. Day four handles inspection and any punch-list items. Drywall repair is often a separate subcontractor scheduled on day five.
Expect 25 to 60 drywall access points in a typical two-story home. A good crew keeps the cuts clean, rectangular, and saves the pieces for the drywall repair subcontractor to reuse. Dust containment with plastic sheeting and zippered doorways is standard, not a luxury add-on.
Permits and Inspections
Every municipality I know of requires a plumbing permit for whole-home pipe replacement. The permit typically costs $150 to $600 and triggers a rough-in inspection before walls are closed and a final inspection after everything is tied in. Any plumber offering to skip permits to save you money is a giant red flag. Unpermitted work voids your homeowners insurance on future claims and must be disclosed when you sell the house.
Warranty Terms That Actually Matter
Reputable whole-home pipe replacement contractors offer two separate warranties:
- Material warranty: 25 to 50 years from the pipe manufacturer (Uponor offers 25 years, Viega 25 years, Type L copper is not formally warranted but lasts 50-plus)
- Workmanship warranty: 5 to 10 years from the plumbing contractor covering joints, connections, and installation errors
A contractor who will not put both warranties in writing is not worth hiring at any price.
How to Choose a Contractor
The repipe market has grown specialized enough that dedicated companies often beat general plumbers on both price and speed. They bring a standardized crew, have refined drywall access techniques, and typically finish in half the time of a general plumbing outfit. Verify three things on any bid:
- Active state plumbing license number (cross-check on the state licensing board website)
- $1 million general liability insurance at minimum
- Workers compensation coverage for every employee on your property
Ask for three recent customer references within a 20 mile radius and actually call them. The good contractors will have a list ready. The shady ones will stall.
Living Through the Project
You can stay in your home during this work. Plan around water being off from roughly 8 AM to 5 PM on most days. Fill bathtubs and two-gallon jugs the night before if anyone needs to shower, flush, or cook during the day. Have a plan for pets and kids because contractors run saws and drills inside for hours. Most families find a local gym or friend’s house makes the week easier. Factor that into your budget alongside the repipe service itself.
