House Repiping Cost Calculator
Get an instant free estimate for whole-house repiping services in your area.
How is House Repiping Cost Calculated?
The cost to repipe a house is calculated primarily by total square footage, the number of plumbing fixtures (bathrooms/kitchens), and the choice of material. On average, homeowners can expect to pay between $4.50 and $12.00 per square foot. Accessibility factors, such as having a slab foundation or a multi-story home, can increase labor costs by 25% to 50%.
Calculate Your Estimate
Property Location
We need to know where the home is located for accurate labor rates.
Home Details
Size matters! The bigger the home, the more pipe is needed.
Pipe Material:
Foundation Access:
Additional Services:
Key Factors Influencing Repiping Rates
Pipe Material Selection
The biggest price variable is material. PEX (Cross-linked Polyethylene) is the modern standard—flexible, easy to route, and affordable. Copper is traditional, rigid, and increasingly expensive due to metal commodity prices.
Accessibility and Foundation
- Crawlspace/Basement: Easiest access. Plumbers can work comfortably under the floor, reducing labor time.
- Slab Foundation: Most difficult. Pipes under the concrete cannot be easily accessed, so plumbers must "reroute" lines through the attic and down the walls, requiring more drywall cuts.
- Multi-story Homes: Vertical runs between floors require opening up ceilings and chases, increasing drywall repair costs.
Average Repiping Cost by Size & Material
| Home Size | PEX Estimate (Standard) | Copper Estimate (Premium) | Duration |
|---|---|---|---|
| Small (1,000 sq ft, 1 Bath) | $4,000 – $6,000 | $8,000 – $10,000 | 2-3 Days |
| Medium (2,000 sq ft, 2.5 Bath) | $8,000 – $12,000 | $15,000 – $20,000 | 3-5 Days |
| Large (3,000+ sq ft, 3+ Bath) | $12,000 – $18,000+ | $25,000 – $35,000+ | 5-7 Days |
Additional Service Fees
| Service | Estimated Cost | Why it costs extra |
|---|---|---|
| Drywall Repair | $1,500 – $3,000 | Patching, texturing, and painting all the access holes made during repiping. |
| Water Heater Replacement | $1,200 – $2,500 | Often done at the same time to ensure a completely new system. |
| Main Water Line | $2,500 – $5,000 | Replacing the underground line from the street meter to the house. |
How to Estimate House Repiping Cost Manually
If you want to double-check a quote or estimate manually, follow these 4 steps:
Step 1: Determine Pipe Material
Decide between PEX (flexible, cheaper) or Copper (durable, expensive). PEX averages $4.50-$6.00/sq ft, while Copper averages $10.00-$12.00/sq ft.
Step 2: Calculate Square Footage
Multiply your home's living area by the material rate. Most repiping contractors bid based on the square footage of the home rather than measuring every linear foot of pipe.
Step 3: Count Fixtures/Bathrooms
Add a surcharge for each bathroom beyond the first two (usually +$800/bath). More fixtures mean more extensive wall demolition and complex manifold connections.
Step 4: Identify Access Challenges
Check your foundation. If you have a slab foundation, add 35% to the total. Rerouting pipes through the attic (to avoid jackhammering concrete) adds significant labor compared to a crawlspace.
(SqFt × Material_Rate) + Fixture_Surcharge + Slab_Fee = Total Cost
Example: A 2,000 sq ft home on a slab with PEX ($5/ft) and 3 bathrooms would be: (2000 × 5) + 800 (extra bath) + 35% Slab Fee = ~$14,580.
Frequently Asked Questions
What is the difference between PEX and Copper pipes?
PEX (Cross-linked Polyethylene) is a flexible plastic tubing that is cheaper, easier to install, and resistant to freezing. Copper is a rigid metal that is more durable, naturally bacteria-resistant, and adds value to the home, but matches a much higher price point (often double the cost of PEX).
How long does it take to repipe a whole house?
A typical whole-house repipe takes 3 to 5 days depending on the size of the home and the number of bathrooms. In most cases, the water is only turned off during the day (8 AM to 5 PM) and restored evening, so you can stay in your home during the process.
Will repiping damage my walls and drywall?
Yes, contractors must cut access holes in the drywall to reach the old pipes or run new ones. While the plumbers will minimize damage, you will likely need drywall patching and painting after the job is done. Some repiping companies include drywall repair in their quote, but many do not.
Is it better to repair a slab leak or repipe the whole house?
If you have an older home (30+ years) with galvanized pipes or have had multiple leaks, repiping is the better long-term investment. Fixing a single slab leak involves jackhammering the floor and costs $2,000-$4,000, but it doesn't prevent the next leak. Repiping replaces the entire system.
Does homeowners insurance cover house repiping?
Generally, no. Insurance covers 'sudden and accidental' damage (like water damage from a burst pipe) but considers the pipes themselves to be 'wear and tear' maintenance items. However, if a pipe bursts, they may cover the water damage restoration, just not the plumbing bill.
What are the signs that my house needs repiping?
Common signs include: low water pressure, rust-colored water (especially when hot), frequent leaks, noisy pipes (banging or gurgling), or if your home was built before 1970 and still has original galvanized steel pipes.
Does repiping include a new water heater?
Usually, no. The quote covers the water supply lines (hot and cold). However, this is the perfect time to replace an aging water heater since the plumbers are already working on the connections. Most companies offer a discount if you bundle a water heater replacement.
What is the life expectancy of PEX vs Copper?
Copper pipes can last 50-70 years but can corrode if the water pH is acidic (pinhole leaks). PEX has a life expectancy of 40-50 years. PEX won't corrode, but it is sensitive to UV light (sunlight) and extremely high chlorine levels.
Do I need a permit to repipe my house?
Yes, almost all municipalities require a plumbing permit for a whole-house repipe. The work must be inspected by a city official to ensure it meets code requirements. Unpermitted work can cause major issues when you try to sell your home.
Can I upgrade to a tankless water heater during repiping?
Yes! A whole-house repipe is the ideal time to switch to tankless because the plumber can ensure the new gas line and water supply lines are sized correctly for the high-flow demands of a tankless unit.