How Much to Redo Plumbing in a House? (2024 Cost Guide)

If you’re hearing strange gurgles from your pipes, noticing low water pressure, or dealing with frequent leaks, you might be asking: “How much to redo plumbing in a house?” You’re not alone—many U.S. homeowners face this costly but often necessary decision. Whether you’re renovating an older home or upgrading for efficiency, understanding the true cost of a full plumbing overhaul can save you thousands and prevent stressful surprises.

Why Would You Need to Redo Your Home’s Plumbing?

Before diving into costs, it’s important to understand why a full plumbing redo (also called a “repipe”) might be necessary. Common reasons include:

• Aging pipes: Homes built before 1970 often have galvanized steel or polybutylene pipes, which corrode or crack over time.
• Frequent leaks: Multiple leaks in different areas signal systemic failure.
• Low water pressure: Mineral buildup or pipe narrowing restricts flow.
• Discolored water: Rust or sediment from old pipes contaminates your supply.
• Insurance or resale requirements: Some insurers won’t cover homes with outdated plumbing.

According to the National Association of Home Builders (NAHB), nearly 15% of major home renovations in 2023 included full or partial repiping—especially in homes over 40 years old.

How Much Does It Cost to Redo Plumbing in a House? (2024 Breakdown)

The average cost to redo plumbing in a house ranges from $4,000 to $15,000, but it can climb as high as $25,000+ for large or complex homes. Several factors influence this wide range:

Key Cost Factors

💡 Pro Tip: PEX (cross-linked polyethylene) is now the most popular choice for repiping due to its flexibility, freeze resistance, and lower cost—approved by the International Plumbing Code and widely used since the early 2000s (Wikipedia: PEX ).

Cost by Pipe Material: PEX vs. Copper vs. CPVC

Choosing the right material affects both upfront cost and long-term durability.

PEX Tubing

• Cost: $0.40–$2 per linear foot
• Pros: Easy to install, resistant to scale and chlorine, works in freezing temps
• Cons: Not UV-resistant (can’t be used outdoors without protection)

Copper Pipes

• Cost: $2–$8 per linear foot (plus soldering & fittings)
• Pros: Long lifespan (50+ years), recyclable, high resale value
• Cons: Expensive, requires skilled labor, prone to theft

CPVC (Chlorinated Polyvinyl Chloride)

• Cost: $0.50–$2 per foot
• Pros: Good for hot water, corrosion-resistant
• Cons: Brittle in cold temps, less flexible than PEX

📊 Real-World Example: A 2,000 sq ft home in Phoenix repiped with PEX cost $6,200, while the same home with copper cost $14,500 (HomeAdvisor 2023 data).

Step-by-Step: What Happens During a Full Repipe?

A professional repipe typically follows these steps:

1. Inspection & Quote
   A licensed plumber inspects your system using cameras or pressure tests. Expect a detailed estimate within 24–48 hours.
2. Permit Application
   Most municipalities require a plumbing permit. Your contractor usually handles this.
3. Shut Off Water & Drain System
   The main water line is turned off, and pipes are drained to prevent flooding.
4. Remove Old Pipes
   Walls may be opened strategically (often in closets or behind cabinets). Contractors minimize drywall damage.
5. Install New Pipes
   New lines are run from the main supply to each fixture. For PEX, a manifold system is often used for better pressure control.
6. Pressure Testing
   The system is pressurized for 2+ hours to check for leaks—critical for safety and code compliance.
7. Inspection & Wall Repair
   A city inspector verifies code compliance. Drywall is patched, painted, and cleaned.

⏱️ Timeline: Most full repipes take 2–5 days for a standard single-family home.

Hidden Costs to Watch For

Don’t get blindsided by these often-overlooked expenses:

• Wall restoration: $500–$2,000 if drywall or tile must be replaced
• Fixture upgrades: Old faucets or toilets may not fit new pipe configurations
• Emergency access fees: If pipes run under slabs or through foundations
• Temporary housing: Some families rent a hotel for 1–2 nights during major work

Always ask for a line-item estimate—not just a lump sum.

DIY vs. Hiring a Pro: Is It Worth the Risk?

While YouTube makes plumbing look simple, repiping is not a DIY project. Why?

• Legal requirements: Most states require licensed plumbers for whole-house work.
• Warranty issues: DIY work voids home insurance if a leak causes damage.
• Code violations: Improper slope, venting, or support can lead to fines or failed inspections.

🛠️ Expert Insight: “I’ve seen homeowners save $3,000 upfront with DIY repiping—only to spend $12,000 fixing water damage and failed inspections,” says Maria Lopez, Master Plumber with 18 years of experience in Austin, TX.

How to Save Money Without Sacrificing Quality

You can reduce costs smartly:

• Get 3+ quotes: Prices vary widely—compare labor rates and material specs.
• Choose PEX over copper: Same performance, half the price.
• Bundle with other renovations: If you’re remodeling a kitchen or bathroom, do plumbing at the same time to avoid duplicate wall openings.
• Ask about off-season discounts: Some plumbers offer 10–15% off in winter months.

FAQ: Common Questions About Repiping Costs

Q1: How long does repiping last?

A: PEX and copper systems typically last 40–70 years with proper installation. CPVC lasts 30–50 years. Lifespan depends on water quality, installation quality, and climate.

Q2: Will insurance cover repiping?

A: Generally, no—unless a covered peril (like a burst pipe from freezing) forces the replacement. Routine upgrades are homeowner responsibilities.

Q3: Can I live in the house during repiping?

A: Yes, but expect no running water for 1–3 days. Most contractors restore one bathroom quickly so you can shower and flush.

Q4: How do I know if my house needs repiping?

A: Signs include rusty water, recurring leaks, banging pipes (“water hammer”), or low pressure in multiple fixtures. Homes with polybutylene pipes (gray plastic, common 1978–1995) should be prioritized.

Q5: Does repiping increase home value?

A: Indirectly, yes. Updated plumbing makes your home more attractive to buyers and avoids red flags during inspections. It won’t add dollar-for-dollar value but prevents sale delays.

Q6: What’s the cheapest way to redo plumbing?

A: Use PEX tubing, limit wall demolition by routing pipes through attics or basements, and hire a reputable local plumber (not the cheapest bid).

Final Thoughts: Invest Wisely, Sleep Soundly

Knowing how much to redo plumbing in a house isn’t just about the price tag—it’s about peace of mind. A properly repiped home means no more midnight leak emergencies, better water pressure, and protection against mold and structural damage. While the upfront cost feels steep, it’s often far less than the cumulative cost of repeated repairs.

If you’re considering a repipe, get quotes from 3 licensed plumbers, verify their insurance, and check reviews on BBB or Angi. Your future self—and your home—will thank you.

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