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Plumber cost to unclog a sink

Unclogging a sink usually costs a few hundred dollars or less, but the price depends on where the clog sits and when you call. These national guide figures show the range and what to ask.

Updated

Drain run from a sink through the trap and branch line to the main sewer, clog marked on the branch.

Picture the price as a ladder. The bottom rung is a trap you empty yourself for free. Climb to a plumber with a hand tool and national averages sit around $100 to $225. A motorized cable pushes toward $350 on Bob Vila's list, and high-pressure jetting starts at $350 on Thumbtack's. None of these are Westside quotes, so only the written price from whoever visits your house counts. Wider background on blocked lines is on the clogged drain and toilet page.

What do plumbers charge to clear a sink?

Thumbtack's national averages are $100 to $225 for the kitchen and $150 to $225 for a bathroom basin, shower or tub. Bob Vila says clearing a clog starts near $150 and a serious one can reach $350. Where the clog sits, which tool clears it and what time you ring all shift the price.

All the guide numbers in one place:

Job Guide range
Kitchen sink $100 - $225
Bathroom basin, shower or tub $150 - $225
Laundry drain $150 to $215
Toilet $110 to $275
Main sewer line $100 to $800
Snaking (average) about $195
Hydro jetting $350 to $600, up to $1,000 if complex

Thumbtack's overall national average for drain cleaning is $186 to $549. A basin plugged by hair and soap in the trap lands near the bottom. A backup caused further down the line, or one shared with other fixtures, shifts into cable or main-line pricing.

Why would two plumbers quote the same sink differently?

Because they may be solving different problems or billing in different styles. One plans a quick trap clean, another expects a cable through the branch line. Access, cause, tool, hour of day and pipe age all change the work, and companies also split cost into hourly, flat or fee-plus-labor formats.

What shapes the work itself:

  1. Access. A trap you can unscrew in thirty seconds is cheap. A cramped cabinet or a disposal in the way is not.
  2. Cause. Hair is simple. Grease, roots, a crushed section or a dropped ring call for more equipment, and perhaps a camera.
  3. Tool. Hand auger, motor-driven cable and jetting each carry their own price.
  4. Hour. Nights, weekends and holidays cost extra.
  5. Pipe age. Older Westside houses with rough iron or clay drains hold onto debris, and may need repeat visits.

Ask up front what the plumber suspects and how the plan changes should that first attempt fail; that keeps surprises off the invoice.

Is there a separate fee just for showing up?

Often. Bob Vila lists service call fees at $100 to $350, usually covering travel, materials and commonly the first hour, with plain trip fees at $50 to $300. A few plumbers drop the trip fee and insist on a one or two hour minimum instead. Thumbtack says fixed service fees are often waived when you hire the same plumber for the repair.

So three billing styles circulate: hourly, flat price, and a call fee credited against the work. They cannot be compared head to head until you know which you were quoted. Ask if the fee is credited, how much time the opening hour includes, and whether mileage is added. Service call cost digs into that, and hourly rates for plumbers covers the other half.

What will an after-hours clog cost?

Expect to pay more. Bob Vila describes after-hours work at 1.5 times up to triple the usual hourly rate, with some plumbers tacking on $100 to $350 flat. Thumbtack says weekend and holiday calls can double or triple, around $135 to $190 an hour.

A merely slow sink almost never justifies that premium; a daytime appointment is cheaper. Real emergencies look different: sewage backing into the house, every drain stopped at once, or water spilling that you cannot shut off. Then stop using water, call immediately, and treat the extra charge as part of the cost of stopping damage.

Can I save money by trying first?

Often for a basic clog, yes. Dish soap, a kettle's worth of hot tap water, a plunger and an emptied trap cost almost nothing and often succeed. Stop when a sink stays slow after those, or other drains begin to gurgle. A cabinet soaked by a badly refitted trap, or a cracked pipe, adds up to more than the original visit.

Five steps rising from soap and hot water to a plumber, each a heavier tool or a bigger job.

Low-cost tactics are laid out in unclogging a kitchen sink, clearing a bathroom sink and home remedies for clogged sink drains. Store-bought chemical cleaners are a gamble; they may not shift a hair plug, and a plumber who finds a pipe full of them takes extra care. For sinks that clog again and again, why a sink drains slowly lists causes you can address at the root.

What do I need to know before approving the job?

Pin down what the price includes, hourly versus flat, any credit for a call fee, the plan if the blockage turns out to be elsewhere, and whether you will get it in writing. Seeing the figure on paper first is your best defense against a bill that keeps growing.

Check the license as well. Past $1,000 a contractor license is expected in California, which a sink clog rarely reaches but bigger repairs can; the state lookup shows status for any number. A deposit has a cap too, the lower of 10 percent or $1,000. To have a local plumber arranged, start at Sunset Coast Plumbing or describe the problem on the quote page; broader numbers are in plumber cost.

Common questions

Does a bathroom drain cost more than a kitchen sink?

Slightly, going by Thumbtack: $150 to $225 for the bathroom against $100 to $225 for the kitchen. The ranges overlap heavily. Bathroom clogs mean hair and soap in small, awkward traps, while kitchens bring grease and food. The job in front of the plumber sets the price.

Will I be charged just for the plumber to look?

Possibly, if the business uses a call fee. Some waive it once you book the repair. Some give free estimates on larger projects but not for diagnosing a clog. Check beforehand, and ask whether it is credited. How quotes arrive before work starts is explained on how a job runs.

Is jetting overkill for one slow sink?

Usually. Thumbtack lists jetting at $350 to $600, as high as $1,000 for complex work, and it fits heavy buildup in a long drain or a main sewer line. A hand auger or cable clears most sink clogs for less. Chronic repeats are the moment to ask about jetting or a camera inspection.

Why did the clog return after the visit?

Because whatever built it up is still there. Hair, grease and soap rebuild, and a rough or damaged pipe snags debris again. Ask the plumber what turned up and what should never go down that drain. A hair catcher in the tub and no grease in the kitchen drain help. A return within days means the fix missed the root cause, so say so.

Ask for a written plumber quote

A few details and we'll set up a visit from a local plumber specialist, then a written quote.

Needed so the business can price the job properly.

Sources used

Page updated