How Much Does It Cost to Repipe a House?

Repiping a house means replacing some or all of the water supply pipes running through your home — the pipes that bring fresh water to every tap, shower, and appliance. It's one of the larger plumbing jobs a homeowner will ever face, and the cost reflects that. In 2026, the average cost to repipe a house in the US is $4,000 to $15,000, with most homeowners spending around $7,500 for a full repipe of a medium-sized home using PEX piping. Understanding what drives that number — and when repiping is truly necessary — can save you thousands. This guide covers everything you need to know.

Average Cost to Repipe a House in 2026

Repiping costs vary widely based on home size, pipe material, and how much of the system needs replacing. The table below summarises typical price ranges across the most common scenarios homeowners face.

What Affects the Cost of Repiping?

No two repiping jobs are the same. Here are the key factors that push your price up or down.

1. Home Size

The larger your home, the more pipe footage is needed to reach every bathroom, kitchen, and utility. A studio apartment might need 100–200 linear feet of pipe. A large five-bedroom home could require 500 feet or more. Plumbers typically quote a price per linear foot of pipe installed, so size has a direct, proportional effect on cost.

2. Number of Bathrooms

Each bathroom adds multiple pipe runs — hot and cold supply lines to the sink, tub, shower, and toilet. More bathrooms mean more connections, more fittings, and more labor hours. A home with one bathroom is far cheaper to repipe than one with four or five. Expect to add roughly $500–$1,500 per additional bathroom to your baseline estimate.

3. Pipe Material

The material you choose for your new pipes is one of the biggest cost variables. Copper is the most expensive but the longest-lasting. PEX is the most affordable and increasingly popular. CPVC sits in the middle. See the full comparison in the next section.

4. Accessibility

Pipes hidden behind walls, under concrete slabs, or in crawl spaces take more time and effort to reach. If your plumber needs to cut drywall, work in a tight crawl space, or break through a concrete slab to access old pipes, labor costs rise significantly. Homes with accessible pipe runs in unfinished basements or open ceilings are the cheapest to repipe.

5. Labor Rates by State

Plumber labor rates vary considerably across the US. States with higher costs of living — California, New York, Massachusetts, Washington — tend to have labor rates 20–40% above the national average. Southern and Midwest states are typically 10–20% below average. See our plumbing costs by state guide for a full breakdown.

6. Permits

Most US cities and counties require a permit for whole-house repiping. Permit fees typically run $100–$500 depending on your location, and a licensed plumber will usually handle the application on your behalf. Skipping permits is not worth the risk — unpermitted plumbing work can cause serious complications when you come to sell your home.

Pipe Material Comparison: Copper vs PEX vs CPVC

Choosing the right pipe material is the most important decision you'll make during a repipe. Each material has distinct advantages, drawbacks, and cost implications.

Copper Piping

Copper has been the standard for residential water supply pipes for decades. It's reliable, long-lasting, and resistant to bacteria growth.

• Cost per linear foot: $3.00 – $10.00 (material only)
• Lifespan: 50–70+ years
• Pros: Extremely durable, heat-resistant, proven track record, adds resale value
• Cons: Most expensive option, susceptible to pinhole leaks in acidic water areas, rigid — harder to install around obstacles
• Best for: Homeowners who want the longest-lasting option and are comfortable paying a premium

PEX Piping

Cross-linked polyethylene (PEX) has become the go-to choice for repiping projects over the last decade. It's flexible, affordable, and fast to install.

• Cost per linear foot: $0.50 – $2.00 (material only)
• Lifespan: 25–50 years
• Pros: Lowest material cost, flexible (bends around corners without fittings), freeze-resistant, quieter water flow, faster installation
• Cons: Cannot be used outdoors (UV degrades it), not approved in all jurisdictions, slightly shorter lifespan than copper
• Best for: Most homeowners — the best balance of performance and cost

CPVC Piping

Chlorinated polyvinyl chloride (CPVC) is a rigid plastic pipe that's been used in residential plumbing since the 1960s. It's cheaper than copper but more expensive than PEX.

• Cost per linear foot: $1.00 – $4.00 (material only)
• Lifespan: 50–75 years
• Pros: Long lifespan, good for hot water lines, doesn't corrode
• Cons: Brittle in freezing conditions, harder to work with than PEX, can become fragile over time if certain chemicals are present
• Best for: Warmer climates where freeze risk is low

Partial Repipe vs Full Repipe — Which Do You Need?

Not every repiping situation calls for replacing every pipe in the house. Understanding the difference between a partial and full repipe can save you considerable money — or help you avoid an expensive short-term fix that doesn't solve the underlying problem.

Partial Repipe

A partial repipe replaces only the affected section of your plumbing — typically one run of pipe, one bathroom, or one floor of the home. It typically costs $500–$3,000.

A partial repipe makes sense when:

• Only one section of pipe is corroded or damaged
• Your home's overall plumbing is in good condition but one area is problematic
• The rest of the pipes are a newer material (e.g., copper) and only one old galvanised section remains

The risk: if your pipes are old throughout, fixing one section may only delay the inevitable. You could pay for a partial repipe now and need a full repipe in a few years, spending more in total than if you'd done it all at once.

Full Repipe

A full repipe replaces all the water supply lines in the home from the main shutoff to every fixture. It's more disruptive and more expensive upfront, but it gives you a fresh start — typically with a 25–50+ year lifespan depending on the material chosen.

A full repipe makes sense when:

• Your home has galvanised steel or lead pipes throughout
• You have recurring leaking pipes in multiple locations
• Water pressure is poor across the entire home
• You're renovating and want to future-proof the plumbing

Signs Your Home Needs Repiping

Most homes don't need repiping without warning. These are the clearest signs that your pipes may be reaching the end of their useful life.

Discoloured Water

Brown, orange, or reddish water coming from your taps is a classic sign of corroding galvanised steel pipes. The rust is contaminating your water supply. This isn't just unsightly — it's a health and safety concern that warrants prompt attention.

Low Water Pressure

If you're experiencing low water pressure throughout the home — not just at one tap — the likely cause is mineral buildup or corrosion inside old pipes narrowing the internal diameter. This is especially common with galvanised pipes that are 40+ years old.

Frequent Leaks

A single leaking pipe is usually an isolated repair. But if you're fixing a new leak every few months in different locations, your pipes are telling you something — they're failing throughout, not just at one spot. At this point, the cumulative cost of repeated repairs often exceeds what a full repipe would cost.

Old Galvanised Pipes

Galvanised steel pipes were standard in US homes built before the 1960s. They have a lifespan of 40–70 years, meaning most galvanised systems are now well past their prime. If your home was built before 1960 and still has the original pipes, a repipe should be a serious consideration — even before visible symptoms appear.

Lead Pipes

Homes built before 1986 may still have lead pipes or lead solder in their plumbing. Lead is a serious health hazard with no safe exposure level. If your home has lead pipes, repiping is not optional — it's urgent. Contact a licensed plumber immediately and arrange testing if you're unsure.

Visible Corrosion

Blue-green staining around copper pipe joints indicates oxidation. Flaking, pitting, or discolouration on exposed pipes in your basement or crawl space signals active corrosion. Pipes in this condition can fail suddenly — a proactive repipe is far less costly than emergency flood damage.

How Long Does Repiping Take?

Most whole-house repiping jobs take two to five days to complete, depending on home size and the complexity of the plumbing layout. Here's a rough guide:

• Small home (1–2 bathrooms): 2–3 days
• Medium home (3–4 bathrooms): 3–5 days
• Large home (5+ bathrooms): 5–7 days or more

During repiping, your water will be shut off for periods each day — usually a few hours at a time rather than the entire day. A good contractor will coordinate with you so you have water access in the mornings and evenings. Walls may need to be opened to access pipes, though experienced plumbers minimise this as much as possible. Drywall patching and repainting is typically your responsibility after the plumbing work is done, unless you negotiate otherwise.

Does Repiping Increase Home Value?

Yes — repiping a house can meaningfully increase its value and significantly improve its marketability when you come to sell. Buyers and their inspectors will scrutinise the plumbing system, and old galvanised or lead pipes are a major red flag that can kill deals or force price reductions.

While repiping rarely delivers a full dollar-for-dollar return on investment, it typically:

• Removes a major negotiating chip for buyers trying to lower your asking price
• Prevents failed home inspections from derailing a sale
• Can add $5,000–$15,000 to perceived value depending on your market
• Makes your home eligible for standard home insurance (some insurers won't cover homes with galvanised pipes)

If you're planning to sell within the next few years, a repipe is worth discussing with your real estate agent alongside the plumbing quotes.

Is Repiping Covered by Home Insurance?

In most cases, no — home insurance does not cover the cost of repiping. Insurance covers sudden and accidental damage (like a pipe burst that floods your kitchen), not the gradual wear and deterioration that leads to the need for repiping in the first place.

However, there are important exceptions:

• Sudden pipe failure: If a pipe fails suddenly and causes water damage, your policy may cover the resulting damage — but not the pipe replacement itself
• Older home policies: Some specialty policies for older homes include limited coverage for pipe replacement — review your policy documents carefully
• Service line coverage: If you have a service line endorsement, it may cover the supply line running from the street to your home — but not interior pipes

Contact your insurance provider directly to understand your specific coverage before assuming anything is included. It's also worth noting that some insurers charge higher premiums — or refuse to renew coverage — for homes with old galvanised pipes, making repiping a financial necessity even beyond the plumbing benefits.

Questions to Ask Your Plumber Before Hiring

Before signing any contract for a repiping job, make sure you get clear answers to these questions. For a full list tailored to all types of plumbing jobs, see our guide on questions to ask a plumber.

• Are you licensed and insured for repiping work in this state? Whole-house repiping is a licensed job in every US state. Never hire an unlicensed contractor for this scale of work.
• Which pipe material do you recommend for my home, and why? A good plumber will explain the options and give you a recommendation based on your home's specific needs, not just what's easiest for them to install.
• What's included in the quote? Confirm whether the price includes permits, wall repairs, old pipe removal, and testing — or whether these are extras.
• How will you minimise disruption to my walls and ceilings? Ask specifically how many access holes they expect to cut and whether they have experience minimising drywall damage.
• What warranty do you offer on the work? Reputable plumbers typically offer a one to two year warranty on labor, on top of any manufacturer warranty on the pipe materials.
• Will you pull the required permits? Always insist that permits are pulled. It protects you legally and ensures the work will be inspected.
• How long will the job take, and when will I be without water each day? This lets you plan around the disruption and ensure your household can function during the project.

Related Articles

• How Much Does a Plumber Cost?
• How Much Does It Cost to Fix a Leaking Pipe?
• How Much Does Sewer Line Repair Cost?
• How to Choose a Licensed Plumber
• How to Fix Low Water Pressure