Sink Drain

A sink drain is the plumbing assembly that carries wastewater from your basin to the main sewer line, and when it's working well, you barely notice it. From slow drains and stubborn clogs to leaks beneath the cabinet, these issues range from quick DIY fixes to jobs requiring professional attention. Angi helps you find the right pro and the guidance you need to keep water flowing smoothly.

Related to Sink Drain Service

Sink Drain Service Articles and Advice
Mariel Loveland  •  May 3, 2026
What Size P-Trap Should I Use for a Bathroom Sink?
P-traps come in various sizes for different types of drains around your home. This guide will show you what size P-trap to use for a bathroom sink.
Lauren Bongard  •  May 3, 2026
What Causes Sewer Gas in Kitchen Plumbing? And Tips for Preventing It
Sewer gas from your kitchen plumbing can create unpleasant odors and health risks. Learn how to identify, remove, and prevent sewer gas issues in your home.
Samantha Hawrylack  •  May 3, 2026
Why Does My Bathroom Sink Drain Smell? 5 Causes and How to Solve Them
Your bathroom sink drain can smell for several reasons, like clogs and mildew growth. Use this guide to troubleshoot your sink smells and eliminate odors.
Allie Ogletree  •  May 3, 2026
Why Is My Dishwasher Draining Into My Sink? 5 Common Problems
Dishwashers drain into the sink for several reasons, including clogs. Read on to learn why your dishwasher is draining into your sink.
Candace Nelson  •  May 2, 2026
5 Ways to Clear a Clog That Don't Involve a Trip to the Cleaning Aisle
Instead of reaching for a bottled solution to clear a clogged sink, check around the house for an equally effective, non-toxic fixer. Even better, these common household items will save you a trip to the store. Here are five ways to fix a sink clog and ge
Haniya Rae  •  May 2, 2026
6 Reasons Your Bathroom Sink Is Draining Slowly and Potential Solutions
A bathroom sink draining slowly is a major inconvenience, but it's usually a simple DIY fix. Learn more about what you can do to troubleshoot the clog.
Nick Crawford  •  May 2, 2026
Can Frozen Pipes Cause Blocked Sink Drains?
If you’re wondering whether frozen pipes can block sink drains, we’ve gathered the information you need to understand and solve this potential issue
Lauren Bongard  •  May 2, 2026
A Guide to Sink Drain Height and How to Measure It
Do you have drainage problems, clogs, or stinky drains? Sink drain height matters! Here’s all you need to know about drain height and how to measure it.
Find Plumbers near you
Share your project details and we’ll match you with up to 3 available pros near you.
Common Sink Drain Service Questions

The best place for a kitchen sink drain is the middle of the sink. Most people prefer center drains because they allow for better water and waste drainage, and the center location limits splashing because water flows straight down the drain hole. If the sink drain is too close to the edge of the sink, water can collect and drain too slowly. It can also be easier to clean sinks when the drain is closer to the center since debris is easier to wash down and doesn’t collect along the sides as easily.

There are several types of sink drain stoppers, including pull-out, twist-and-pull, and pop-up. Pull-out sink stoppers can be removed by pulling on the stopper until it comes out of the drain. A twist-and-pull design requires lifting then turning the stopper to lock it in an open position and the opposite action (turning, then pressing down) to close it. A pop-up sink stopper works by pushing down the drain cover to open or close the passageway. 

No, you don’t need to use plumber’s putty to install a sink drain. Other options are available, such as silicone putty or silicone caulk. Plumber’s putty is the traditional method and it’s easier to work with and easier to remove. It doesn’t need to dry before using. Silicone putty should dry before you use the drain.

If you're dealing with a clogged sink drain, you may be able to avoid removing the drain by using a plunger to dislodge the clog. While we associate plungers with toilets, they can do the same job with your sink drain. Be gentle, though, as forceful movements can push clogs further into your plumbing system and make them more difficult to remove. Additionally, make sure you’re using a sink plunger—with a flat bottom—and not a toilet plunger—which has a smaller bottom protruding from the larger flat piece.

Yes, there are different size sink drains, but a 1 ½-inch-diameter drain is the most common modern drain size. However, some sink drains are 2 inches or 3 inches in diameter. A bathroom sink drain is 1 ¼ inches in diameter, and kitchen sink drainpipes are 1 ½ inches in diameter.