Sink Installation Cost: Kitchen, Bathroom & Utility
Swapping a drop-in or undermount sink runs $250 – $650 in labor, and pairing a kitchen sink with a new faucet runs $400 – $1,000 installed. Pedestal and utility sinks cost more because hiding or extending the plumbing is the work. Here is where each type lands and what moves the number.
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| Sink type | Labor range | What drives it |
|---|---|---|
| Drop-in or undermount swap | $250 – $650 | Like-for-like into an existing counter and drain |
| Kitchen sink plus new faucet | $400 – $1,000 | Sink, faucet, supply lines, drain and disposal reconnect |
| Pedestal sink | $300 – $800 | Hiding the supply and drain in the open is the labor |
| Utility or laundry sink | $300 – $900 | Supply and drain extensions in a garage or basement |
| Wall-mount or vanity bathroom sink | $250 – $700 | Faucet, P-trap and supply stops included |
| Item | Range | When it applies |
|---|---|---|
| New faucet (homeowner supplies vs installed) | $80 – $400 | Labor to set is $100 – $250 on top of the sink |
| New shutoff valves (angle stops) | $40 – $150 | Old or seized stops replaced during the swap |
| New P-trap and supply lines | $30 – $120 | Braided lines and a fresh trap, cheap insurance |
| Disposal or air gap reconnect | $50 – $200 | Kitchen sinks with a disposal or dishwasher tie-in |
| Countertop cutout or modification | $150 – $600 | New sink shape differs from the old opening |
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A swap vs a sink that brings new plumbing
A like-for-like swap is the affordable job. The counter cutout already fits, the drain and supply are in place, and the plumber pulls the old sink, sets and seals the new one, reconnects the faucet, drain and supply lines, and checks for leaks. Drop-in and undermount swaps run $250 – $650 in labor, usually a single trip. New angle stops and a fresh braided supply line are cheap add-ons worth saying yes to.
The price climbs when the new sink does not match the old footprint, when a faucet is added, or when the plumbing has to move. A kitchen sink with a new faucet runs $400 – $1,000 because the faucet set, supply lines, drain and any disposal or dishwasher reconnect all ride along. If your faucet is the only thing changing, our faucet installation cost page covers that smaller job on its own.
Undermount in stone is counter-installer territory
An undermount sink in a new granite or quartz top is not a plumber-only job. The sink mounts to the underside of the stone, and the cutout, polishing and adhesive bonding are done by the countertop fabricator, often before the slab is even set in place. Trying to retrofit an undermount into existing stone risks cracking the slab.
When an undermount swaps into an existing stone counter with the same opening, a plumber can reset and reseal it. But a different sink shape, or a first-time undermount, means the fabricator handles the cut and bond and the plumber handles the connections afterward. Budget for both trades, and expect the countertop side to lead the schedule.
Pedestal and utility sinks: where the labor hides
A pedestal sink looks simple and costs more than you would guess: $300 – $800 installed. With no vanity to hide behind, the supply lines, shutoff stops and P-trap are all exposed, so the plumber has to align everything cleanly, often relocating the rough-in so the pipes disappear behind the pedestal column. Getting that plumbing centered and concealed is the work you are paying for.
Utility and laundry sinks run $300 – $900 because they usually go where no sink was before, in a garage, basement or laundry room. That means extending a supply line and a drain to reach the new spot, and tying the drain into an existing waste line or standpipe. If the run is long or the drain has to be cut into cast iron, the job sits at the top of that range.
What moves the price
Matching the old footprint is the biggest swing. A new sink with the same cutout and drain location is a clean swap; a different bowl shape, a switch from drop-in to undermount, or a move from a single to a double bowl can mean a countertop modification ($150 – $600) and re-plumbing the drain.
Condition of the existing valves and trap matters too. Seized angle stops that will not close get replaced ($40 – $150), and an old crumbling P-trap is swapped while access is easy. On kitchen sinks, reconnecting a disposal, dishwasher drain and air gap adds parts and time. None of these are upsells; they are what keeps the finished install watertight.
What the visit looks like
A bathroom or kitchen swap is a same-day, single-trip job. The plumber shuts the supply stops, disconnects the faucet, drain and lines, lifts out the old sink, sets and seals the new one, reconnects everything (with new stops and a fresh trap where needed), and runs water at every joint to confirm a dry cabinet.
A pedestal, undermount-in-new-stone, or first-time utility sink runs longer and may involve a second trade or a rough-in change. Expect a written price before work starts. If the cabinet under your current sink is already showing water stains, our guide to a leak under the kitchen sink helps you catch the cause before the new sink goes in.
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