Plumber rough-in cost typically ranges from $1,500 to $5,000 for a bathroom and $8,000 to $20,000 for a modest new home, before finish fixtures are installed. Price depends on fixture count, pipe material, access, local labor rates, and whether the work includes drains, water lines, gas piping, or slab cutting.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Bathroom rough-in | $1,500 | $3,000 | $5,000 | Typical 3-piece bath, accessible framing |
| Kitchen rough-in | $900 | $1,800 | $3,500 | Sink, dishwasher, and refrigerator line |
| New-home rough-in | $8,000 | $13,000 | $20,000 | About 1,500-2,500 sq ft, standard layout |
| Per fixture connection | $350 | $750 | $1,500 | Varies by fixture and pipe run length |
What a bathroom or kitchen rough-in usually costs
A plumbing rough-in installs the drain, waste, vent, and water supply piping that will later connect to sinks, toilets, tubs, showers, and appliances. The quoted work generally happens before drywall and finish fixtures. It may include pressure testing and inspection, but usually excludes faucets, toilets, shower trim, cabinets, and final fixture installation.
For a straightforward bathroom, budgeting $2,000-$4,000 is a practical starting point. A basic half-bath with a toilet and sink may run $1,200-$2,500; a full bath with a tub or shower commonly costs $2,000-$5,000. A kitchen rough-in often falls between $900 and $3,500, depending on appliance lines and how far the new plumbing is from existing supply and drains.
These are broad U.S. planning ranges, not fixed national prices. They assume standard residential materials, ordinary access, and no major structural changes. A basement bathroom with nearby drain connections may cost less than one requiring concrete cutting or a sewage ejector. A second-floor bathroom can cost more if piping must be routed through finished rooms or around beams.
Assumptions: standard PEX or copper supply lines, PVC or ABS drainage where locally permitted, ordinary access, and no premium fixtures or major demolition.
Which pipes, labor tasks, and permits drive the quote
Rough-in estimates combine materials and trade work. Labor tends to be the largest share, especially when plumbers need to route pipes through tight framing, coordinate with other trades, or return for inspections. The table shows common cost components for a typical full bathroom rough-in; actual quotes may combine these into one fixed price.
| Cost component | Typical range | Common pricing basis | What it covers | When it rises |
|---|---|---|---|---|
| Supply and drain materials | $300-$900 | $75-$225 per fixture | Pipe, fittings, valves, supports | Long runs or copper specification |
| Plumber labor | $900-$2,800 | $75-$150 per hour | Layout, pipe installation, testing | Restricted access or complex routing |
| Equipment and site work | $100-$1,000 | $150-$500 per day | Core drilling, trenching, slab cuts | Concrete or deep excavation |
| Permit and inspection | $50-$500 | Per permit or inspection | Local application and review fees | Multiple permits or added review |
| Removal and disposal | $100-$800 | Per project | Old pipe or limited demolition debris | Large area or hazardous material |
For example, 16-24 labor hours at $90-$130 per hour implies $1,440-$3,120 in labor alone. Some contractors price by project rather than hourly, and the estimate may include supervision, travel, business overhead, and a warranty. Ask whether material delivery, cleanup, testing, and the inspection visit are included before comparing bids.
How fixture count, pipe distance, and slab work change price
Fixture count provides a useful starting point, but it does not tell the whole story. A toilet, shower, and vanity require different drain sizes, vent connections, and supply routing. Adding a second sink or a separate tub can require more pipe and labor even when the room size stays the same. Confirm that the estimate lists every planned fixture and appliance connection.
Long pipe runs and concrete work are two of the most important cost thresholds. A run of 10-20 feet through open framing may be routine; a 30-50-foot route across finished or obstructed space can add several hundred dollars to more than $1,500. Cutting and patching a concrete slab can add roughly $500-$2,500, with deeper trenching or difficult access pushing costs higher.
Pipe material also matters. PEX is often less expensive to install for water supply than copper, while local code, temperature exposure, and contractor preference can affect the choice. Copper supply piping may add approximately $300-$1,000 for a small room compared with a basic PEX design. Drainage commonly uses plastic pipe where allowed; replacing an existing system may require matching its material or adapting connections.
Layout changes can increase labor more than the fixture itself. Moving a toilet drain several feet may mean opening the subfloor or slab, while shifting a sink on a shared wall may be simpler. A new bathroom below the main sewer line may need a sewage ejector, adding roughly $1,500-$4,000 installed for equipment, piping, and electrical coordination.
Where a new-home rough-in grows beyond the base bid
A new-home rough-in is usually priced by the full plumbing plan rather than a simple per-room rate. A 1,500-2,500-square-foot home with two or three bathrooms, a kitchen, laundry, and standard water heater connections often lands around $8,000-$20,000. A compact home with short runs and a simple layout may sit near the lower end; multiple stories, extra baths, and distant utility connections raise the total.
Each additional bathroom can add about $1,500-$5,000 to rough-in pricing. The increment depends on whether the room shares a nearby plumbing wall or needs new trunk lines and vents. A laundry connection may add $500-$1,500, while an outdoor hose bib or refrigerator water line commonly adds $150-$500 each when installed during open-wall construction.
Home size is only a rough proxy for cost. A 2,000-square-foot plan with bathrooms grouped near a main stack may require less pipe than a smaller home with fixtures spread across two floors. The number of fixtures, distance to the sewer and water entry, and local code requirements should appear in a detailed estimate. For a large or custom house, a plumbing subcontractor may separate rough-in, water-heater setup, and finish installation.
How plumber labor hours and crew size affect the schedule
A standard bathroom rough-in can take one or two plumbers about 1-3 working days, depending on the layout and whether the walls and floor are open. A small kitchen relocation may take 1-2 days, while a whole-home rough-in can require several days to a few weeks of scheduled trade work across different construction stages.
Hourly rates commonly range from $75 to $150, with higher charges in expensive metro areas or for urgent work. A two-person crew may finish faster, but the total labor charge does not necessarily fall because two workers are billing time. Rough-in work also depends on framing completion, utility access, and inspection scheduling, so a delay between visits can affect the project calendar without adding the same amount of billable labor.
Ask the contractor to state the assumed crew size, estimated labor hours, and rate or fixed-price scope. Clarify whether the bid includes a return visit after framing changes or inspection corrections. A rough-in inspection failure caused by a contractor’s installation may be handled differently from a correction required after the owner or another trade changes the approved layout.
Why rough-in prices differ across U.S. markets
Local wages, permit fees, demand, and travel distance make plumbing prices vary by region. As a broad comparison, a similar rough-in may be 10%-25% below the national midpoint in some lower-cost rural or Southern markets, while high-cost coastal metros can run 15%-35% above it. These are planning differences, not guarantees; a shortage of qualified plumbers can raise prices in any region.
Regional comparisons are most useful when the project scope is identical. Compare fixture count, pipe material, demolition, permit handling, testing, and exclusions—not just the final number. A low quote that excludes permit fees or slab restoration may ultimately cost more than a higher, comprehensive bid.
Travel can also matter in rural areas. Contractors may add a service or mobilization charge of $50-$250 for distant sites, or build travel into the fixed estimate. In cities, parking, limited work hours, building access rules, and hauling debris can add time. For a remodel, ask whether the price includes protecting nearby finishes and leaving the work area ready for the next trade.
Three sample rough-in quotes for common project scopes
The following examples illustrate how scope affects a quote. They assume ordinary access and midrange U.S. labor, and do not include finish fixtures, drywall repair, or painting. Local permits and existing plumbing conditions can change each total.
| Project example | Scope and labor | Unit estimate | Illustrative total |
|---|---|---|---|
| Half-bath addition | Toilet and vanity; 12-16 labor hours | $600-$1,100 per fixture connection | $1,500-$2,800 |
| Full bathroom remodel | Toilet, vanity, tub/shower; 20-30 hours | $500-$1,200 per fixture | $2,500-$4,800 |
| Kitchen relocation | Sink, dishwasher, refrigerator line; 16-28 hours | $25-$75 per added pipe foot | $2,000-$4,500 |
A kitchen moved 20 feet from its former location may need new drain routing and vent adjustments; its total can exceed a same-room replacement. Conversely, a full bath built next to an existing stack may come in below the middle of its range. These examples are not bids and do not cover unusual structural work, premium materials, or major sewer repairs.
Which extra charges should appear outside the rough-in
Some estimates exclude demolition, concrete restoration, fixture purchase, or finish plumbing. Others include only a basic connection and list permits separately. A diagnostic or site assessment fee may be $75-$250, often credited toward contracted work, while after-hours or emergency labor can cost 1.5-2 times the standard hourly rate.
Get exclusions in writing before authorizing demolition or trenching. Slab cutting and disposal may be priced separately, and concrete patching or flooring replacement is often assigned to another trade. If the work involves an old home, ask whether the quote includes removal and disposal of abandoned pipe, or simply caps and leaves it in place.
Permit fees vary by municipality and scope, commonly from about $50 to $500 for a residential plumbing permit, though combined building permits can cost more. Some jurisdictions require inspections before walls are closed and may require approved backflow devices or updated venting. The plumber should identify who applies for permits and pays fees, and whether inspection corrections are included.
How to lower the rough-in bill without cutting corners
Keep fixtures close to existing water and waste lines when the layout allows. Grouping bathrooms or placing a laundry room near the plumbing stack can shorten runs and reduce fittings, labor, and future access problems. Finalize toilet, shower, sink, and appliance locations before work begins; late changes can require rework and a second inspection.
Compare at least three itemized estimates based on the same drawing and fixture list. Each quote should identify pipe materials, fixture connections, labor assumptions, permits, testing, removal, and exclusions. This makes it easier to spot a low bid that leaves out venting or a high bid that includes unnecessary upgrades.
Choose materials that meet code and suit the building rather than specifying premium options without a reason. PEX can lower supply-piping expense where permitted, while accessible routes and open framing reduce labor. For a remodel, ask whether an existing line can be safely reused after inspection instead of replaced automatically. Do not save money by omitting required vents, cleanouts, shutoff valves, pressure testing, or permits; these omissions can create repair costs and inspection failures.