Whole House Repipe Cost Calculator
Estimate the total cost to repipe an entire house with PEX or copper, including labor, materials, and permits.
Results
Visualization
How It Works
A whole-house repipe replaces all water supply lines. PEX costs 40-60% less than copper and installs faster. Copper lasts longer (50+ years vs 25+ for PEX) but requires soldering skill.
The Formula
Pipe Length ≈ SqFt x 0.15 x Stories
Material = Length x Cost/ft
Labor = Length x Rate/ft + Fixture Connections
Material = Length x Cost/ft
Labor = Length x Rate/ft + Fixture Connections
Variables
- 0.15 — Approximate pipe feet per square foot of living space
- PEX — $1.50/ft material, $3.00/ft labor
- Copper — $4.50/ft material, $6.50/ft labor
Worked Example
2,000 sqft, 2-story, PEX, 12 fixtures: 600 ft pipe. Materials $900, Labor $2,340, Drywall $384, Permit $350 = $3,974.
Practical Tips
- PEX is the standard for residential repiping — faster, cheaper, freeze-resistant
- Budget 10-15% of total for drywall and painting repair
- Slab homes cost 20-30% more due to rerouting through attic or walls
- Replace shut-off valves during a repipe — they are often corroded