Sink Installation
A new sink changes a kitchen or bathroom more than most people expect. It sets how you wash, cook, and clean, day after day. A good install fits the counter, seals tight, drains fast, and leaves no leak hiding in the cabinet below.
What a Proper Sink Install Involves
A sink install looks simple from above: a basin in a counter, a faucet, and a drain. Under the counter, the work is more exact. Supply lines must meet the faucet without strain. The drain assembly must seal at every joint. The trap must sit at the right height so water drains and sewer gas stays out. The sink must sit level and seal to the counter so water cannot creep underneath.
The Deston is a referral service, not a plumbing company. We connect homeowners across all 50 states with independent local plumbers who install sinks every day. We do not send our own crews. We match you with a nearby pro, you get an upfront price, and the work gets done right. The referral costs you nothing. You pay the plumber for the work, after you approve the price.
Most homeowners pay between $250 and $700 for a standard sink installation when they supply the sink. That range covers a like for like swap in an existing counter. A new counter cutout, a drain move, or a farmhouse sink that needs cabinet work costs more. Your plumber can price your exact job once they see the counter, the cabinet, and the drain spot.
Signs You Need a New Sink
A sink can be repaired, but these signs mean replacement is the honest answer.
The basin is stained, chipped, or rusted
Porcelain chips and rust spots do not clean away, and they grow with use. A stained steel sink that never looks clean drags down the whole kitchen. A new basin resets the room at once.
The sink leaks at the rim or drain
A rim seal that failed lets water into the cabinet and under the counter. A drain that leaks at every joint may have corroded parts. If seals and parts have been replaced and leaks return, the sink itself is done.
The size or depth no longer suits you
A shallow sink splashes and cannot hold large pots. A small single basin frustrates a cook who needs two zones. A deeper single basin or a double basin changes daily use more than a new faucet alone.
You are remodeling the kitchen or bathroom
A remodel is the natural time for a new sink. Counter, faucet, and sink choices should be made together, because the faucet holes, the drain spot, and the cabinet width must all match.
The faucet holes do not match your faucet
An old sink may have the wrong number or spacing of holes for the faucet you want. Adapters exist, but they look patched. A new sink with the right hole layout gives a clean finish.
The cabinet below shows water damage
Swollen cabinet floors and musty smells point to long term leaks. A new sink with new seals and a new drain assembly stops the source. Cabinet repair may still be needed, and the plumber can tell you what to fix first.
From Call to New Sink, in Six Steps
A like for like swap often takes a few hours. A counter cutout or drain move takes longer.
- 1
You call
Dial (888) 418-3086 and describe the sink: kitchen or bathroom, single or double, and whether the counter stays or changes.
- 2
We refer a local sink installer
We connect you with an independent local plumber who installs sinks often. They check the counter, the cabinet, and the drain spot.
- 3
Pick the sink and faucet
Top mount, undermount, or farmhouse, plus material and faucet holes. The plumber confirms the sink fits the cabinet and the faucet fits the sink.
- 4
You approve the price first
You get upfront pricing before work starts, with labor, seals, and drain parts listed. You approve the price. No work starts without your say so.
- 5
Old sink out, new sink in
The pro disconnects supply and drain lines, removes the old sink, sets the new sink level, seals the rim, and connects the drain and faucet.
- 6
Test at full flow
The pro runs water at full flow, checks every joint under the cabinet, and checks the rim seal. You get care notes for the sink material.
Top Mount, Undermount, or Farmhouse
A top mount sink drops into a hole in the counter and rests on a rim. It fits most counters, installs fast, and suits a like for like swap. The rim can trap crumbs, and it shows a visible edge, but it is the most forgiving choice when the counter cutout is already made. If your counter stays, a top mount in the same size often needs no counter work at all.
An undermount sink mounts below the counter, so the counter edge flows straight into the basin. It looks clean and lets you wipe crumbs straight into the sink. It needs a solid surface counter, such as stone or quartz, because the sink hangs from the counter. Laminate counters do not suit undermount sinks. The install takes more care, because the seal under the counter must hold the full weight of a full sink.
A farmhouse sink, also called an apron sink, shows its front face at the cabinet front. It suits large kitchens and deep basins, and it changes the look of the room. It needs cabinet work: the cabinet front must be cut and braced for the weight. Tell the plumber early if you want a farmhouse sink, so the cabinet plan is priced with the sink, not discovered mid job.
Sink Installation Options
One referral can cover the sink, the faucet, and the drain parts.
Kitchen sink installs
Single and double basins, top mount, undermount, and farmhouse styles. The plumber checks disposal and dishwasher hookups too, since both tie into the kitchen drain. A new disposal can be added in the same visit.
Bathroom sink installs
Vanity sinks, vessel sinks, and pedestal sinks. Vessel sinks sit on the counter and need a taller faucet and a drain at the right height. Pedestal sinks hide pipes in the pedestal and need solid wall support.
Bar, laundry, and utility sinks
Small bar sinks, laundry room sinks, and utility sinks for garages and mudrooms. Utility sinks take heavy use, so the plumber checks the drain size and the trap for the loads you plan.
Top Mount vs. Undermount
Both hold water well. They differ in look, counter needs, and install care.
| Factor | Top mount | Undermount |
|---|---|---|
| Counter needed | Most counters, including laminate | Solid surface only |
| Install speed | Faster, rim carries weight | Slower, seal carries weight |
| Cleaning | Rim can trap crumbs | Wipe straight into basin |
| Look | Visible rim edge | Clean, flush edge |
| Best when | Counter stays, budget matters | New stone counter, clean look wanted |
Before and After: A Worn Sink, Renewed
The photos below are illustrations of the difference this work makes. They are not photos of a real job.
Before
AfterWhat Sink Installation Costs
Typical United States ranges, shown as national averages for planning only. Your matched plumber gives you the price for your home before work starts.
| Job | Typical range |
|---|---|
| Standard sink install, you supply the sink | $250 to $700 |
| Sink plus faucet install, same visit | $350 to $900 |
| Farmhouse sink, with cabinet work | $700 to $1,500 |
| New counter cutout, stone counter | $300 to $600 |
| New drain assembly and trap | $100 to $250 |
| Disposal hookup, added during install | $150 to $350 |
Preparing for the Install
A little prep keeps the install quick and the kitchen usable sooner.
Clear the cabinet below. Remove cleaning supplies and stored items from under the sink so the plumber can reach supply and drain lines at once.
Clear the counter around the sink. Move dishes, small appliances, and items near the sink. The old sink comes out through the top and needs room.
Have the sink and faucet ready. If you supply the sink, have it on site with the faucet, drain parts, and any template the maker includes. Missing parts delay the job.
Plan for water off time. The kitchen or bathroom water will be off for part of the visit. Fill a jug for drinking and cooking first.
Tell the plumber about disposal and dishwasher. Both tie into the kitchen drain. Mention them when you book so the plumber brings the right fittings.
Protect the floor path. Clear the path from the door to the sink so the old sink and debris can move out cleanly.
Frequently Asked Questions
How long does a sink install take?
A like for like swap often takes a few hours. A farmhouse sink with cabinet work, a counter cutout, or a drain move takes longer, often a full day. Counter work by a stone shop adds its own schedule. Your plumber can give you a time once they see the counter and cabinet.
Do I need a plumber to install a sink?
A plumber install is the safer choice for most homes. The job needs supply connections, a drain assembly, a trap at the right height, and a rim seal that holds. A poor seal leaks under the cabinet for months before you notice. A pro tests every joint at full flow before leaving.
Can I replace a sink without replacing the counter?
Yes, when the new sink fits the existing cutout. A top mount sink in the same size often drops straight in. An undermount swap needs the cutout to match the new sink. Measure the cutout and the cabinet before ordering, or ask the plumber to measure for you.
What sink material is best for a kitchen?
Stainless steel suits most kitchens: tough, easy to clean, and kind to budgets. Fireclay and cast iron look classic but weigh more and need strong support. Composite sinks resist stains and heat. Pick by use: heavy pots favor steel, while a show kitchen may favor fireclay.
Top mount or undermount: which should I pick?
Top mount fits most counters and installs fast. Undermount looks cleaner and wipes clean, but needs a solid surface counter. If your counter is laminate, top mount is the right call. If you are already fitting a stone counter, undermount is worth considering.
Will a new sink fit my existing faucet?
It depends on hole count and spacing. A sink with three holes fits a standard faucet with side handles. A single hole sink fits a single lever faucet. Check the faucet hole layout before ordering the sink, or plan a new faucet with the sink.
What causes a new sink to leak?
Most new sink leaks trace to the rim seal, the drain assembly, or a loose supply connection. That is why the plumber tests at full flow and checks every joint under the cabinet. If you see water under the sink, stop using it and call. Early leaks are cheap to fix.
Can a farmhouse sink fit my cabinets?
Often yes, with cabinet work. The cabinet front must be cut and braced for the weight of the sink, especially a cast iron model. Tell the plumber early so the cabinet plan is priced with the sink. A farmhouse sink in a standard cabinet without bracing will sag.
Should I replace the faucet with the sink?
It is often worth it. An old faucet on a new sink looks patched and may leak soon. A new faucet during the same visit saves a second trip fee and gives a clean finish. If the old faucet is new and matches the hole layout, keeping it is fine.
Does The Deston charge homeowners for referrals?
No. Our matching service is free to you. You only pay the local plumber for the work done in your home. You approve the plumber price before work starts. The Deston is a referral service that connects homeowners with independent local plumbers. We are not a plumbing company.
How do I keep a new sink looking new?
Wipe steel sinks dry after use to cut water spots, and avoid harsh abrasives on any finish. Rinse after acidic foods and cleaners. For porcelain, avoid dropping heavy pots that chip the glaze. Your plumber can advise on care for your sink material.
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A New Sink, Sealed Right the First Time.
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(888) 418-3086Call NowThe Deston is a referral service that connects homeowners with independent local plumbers. We are not a plumbing company.