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Free plumbing rough-in cost calculator for planning DWV and supply work before drywall. Estimate typical installed cost bands by fixture location count, project type, distribution strategy, building levels, optional gas stubs, and regional labor.
Last updated: April 19, 2026
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Count each bath, kitchen, laundry, or hose bib group that needs supply and waste rough-in—not only trim fixtures.
Typical rough-in window
0.4 weeks
Inspections, concrete pours, and other trades often sequence around plumbing.
Notes
Count
Wet walls
Each grouped location adds supply branches and DWV takeoffs.
Routing
Manifold vs branch
Homerun layouts can increase fittings but simplify shutoff logic.
Code
Venting
Fixture units and pipe sizes must meet local amendments to the plumbing code.
Labor
Remodel premium
Working in finished cavities slows production versus open framing.
QC
Inspection
Passing inspection before cover protects against costly drywall tear-out.
Coordination
Appliance layout
Stove and dryer locations should be firm before capping gas pipes.
14 locations • new construction • PEX branch • two story • range stub • South:
Materials
$1,511
Labor
$1,888
Permits & fees
$378
Total
$3,777
The calculator applies an illustrative per-location cost model scaled by project type (open framing versus selective remodel difficulty), pipe distribution strategy, vertical run complexity, optional gas rough-in adders, and a regional labor multiplier. The total is split across pipe and fittings, installation and testing labor, and permits or fees. Water treatment loops, sewer replacements, and fixture purchases are not itemized separately.
Core ≈ locations × $/loc × project × pipe × levels+ gas adders; × regionUse results for budgeting—confirm with a licensed plumber and your local code official.
Schedule inspections before insulation and drywall hide deficiencies
Next phase? See our water heater replacement calculator and bathroom remodel calculator.
Get a custom calculator for your platformTotal illustrative estimate: $3,777
Typical rough-in window: 0.4 weeks (inspection dependent)
Finished walls and limited access
Often higher effective cost per location
More fittings and organization at the panel
Material and labor profile differs from branch-only
Share it with builders and homeowners sequencing plumbing inspections
Suggested hashtags: #Plumbing #RoughIn #NewConstruction #Remodel #Calculator