Kitchen Plumbing Rough-In Cost Calculator
Estimate the cost of kitchen plumbing rough-in based on scope, pipe material, and specific options.
A kitchen plumbing rough-in costs $2,000 to $8,500, with a national average of $4,500. Use the calculator below to estimate your cost by size, quality tier, and location.
Last updated: March 25, 2026
Kitchen Plumbing Rough-In Cost Calculator
Estimate the cost of kitchen plumbing rough-in based on scope, pipe material, and specific options.
Estimated Total
$3,195
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Kitchen Plumbing Rough-In cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Basic sink rough-in with supply and drain lines in same location as existing plumbing. No layout changes.
Sink relocation, dishwasher stub-out, ice maker line, and new shutoff valves. Moderate pipe rerouting.
Full kitchen layout change with new sink location, pot filler installation, island plumbing, and complete supply line replacement.
How This Calculator Works
This kitchen plumbing rough-in cost calculator estimates your total project cost from four inputs: project size, quality tier, the options you select, and your location. It combines material and labor rates for your chosen tier, adds typical permit costs, then applies a regional cost multiplier so the estimate reflects pricing in your state.
Estimates use 2026 cost data cross-referenced from multiple industry sources. Treat the result as a planning range, not a quote. Your final price depends on your specific scope, material choices, and local contractor availability, so collect at least three itemized bids before you set a budget.
What Affects Your Kitchen Plumbing Rough-In Cost
Sink Relocation
$800 - $3,500Moving a sink even a few feet means rerouting drain lines to reach the main stack and extending supply lines. Moving across the room or to an island costs $1,500-$3,500 because drains must maintain proper slope (1/4 inch per foot) which can require dropping below the subfloor or adding a pump. This is where kitchen plumbing costs spike most.
Pipe Material
$1 - $9 per linear foot in materialsPEX pipe runs $0.50-$2 per foot and is easy to work with, cutting labor time significantly. Copper runs $2-$8 per foot and lasts longer but costs more for materials and labor. CPVC falls in between at $1-$3 per foot. Most plumbers now default to PEX for supply lines in remodels.
Accessibility and Floor Type
$500 - $4,000Crawl space or basement access makes pipe runs much easier - a plumber can work below the kitchen floor without cutting into it. Slab-on-grade homes may require saw-cutting the concrete to reroute drain lines, adding $1,500-$4,000 in jackhammering, trenching, and concrete repair.
Additional Fixtures
$200 - $2,000 eachA dishwasher drain connection and supply line adds $200-$500. A refrigerator ice maker line runs $150-$350. A pot filler over the range costs $400-$1,200 installed. Each additional connection point adds labor time and materials.
Existing Pipe Condition
$500 - $5,000If the plumber opens walls and finds galvanized steel pipe (common in homes built before 1970), it typically needs to be replaced rather than connected to. Corroded galvanized pipe restricts flow and leaks at fittings. Full kitchen supply line replacement adds $800-$2,500 to the job.
Frequently Asked Questions
How much does a kitchen plumbing rough-in cost?
A kitchen plumbing rough-in costs $2,000 to $8,500 for a typical project, with a national average of $4,500. Budget projects start around $800, and premium work can reach $18,000. Use the calculator above for an estimate matched to your size, quality tier, and state.
How does this kitchen plumbing rough-in cost calculator work?
It combines 2026 material and labor rates for your selected quality tier, adds typical permit costs and any options you choose, then applies a cost multiplier for your state. Adjust the inputs to see your estimate update instantly.
Is this calculator free to use?
Yes. This kitchen plumbing rough-in cost calculator is free, requires no signup, and returns instant estimates.
Does the estimate include labor and permits?
Yes. Each estimate combines material and labor costs for your chosen quality tier plus typical permit fees. Your final price still depends on your specific scope and local contractor rates, so collect itemized quotes before budgeting.
How can I lower my kitchen plumbing rough-in cost?
Keep the sink in its existing location - this single decision saves $800-$3,500 in rerouting costs. Schedule plumbing rough-in at the same time as electrical rough-in to reduce total permit fees and inspection trips.
Free newsletter
Stay current on what renovations actually cost
Updates from CostToRenovate, when there is something worth sending. Free, no spam.