install sink

How To Install A Sink

Whether you have recently moved into a new home, or you're renovating your current living space, you may have to install a sink at some point. Most homes have sinks in the kitchen and bathroom. Others even have sinks in the laundry room or the backyard. This is a general description of how to install a sink. However, it's a good idea to get your plumber to help if you have any questions.

Tools You'll Need:

  • Caulking gun
  • Drill (If you are cutting the counter space)
  • Jigsaw (If you are cutting the counter space to fit the sink)
  • Pipe wrench
  • Screwdriver

Additional Materials:

  • Drain
  • P-trap
  • Silicone sealant or plumbers caulk
  • Sink
  • Rubber gasket
  • Faucet
  • Sink template (should be included with the sink)
  • Waste pipe

Turn Off The Water Supply

You've bought a brand new sink and you've finally brought it home from the hardware store. Before you get started, be sure to turn off the water supply with the shut-off valve. This is the switch directly below your sink area.

Pre-Cut Counter Area

Assuming you have a pre-cut counter in the area that you are installing your sink, simply lower the new sink into the opening of the pre-cut space to ensure it fits. If you are building a new sink area rather than replacing a sink, you will need to cut the counter area to fit your sink. Watch the instructional video here.

Install The Drain

Once your sink fits snugly in the countertop space you can install the sink drain. The drain goes in the hole, usually directly in the center of your sink. Use your silicone sealant and apply it in a full circle around the inside of the hole. Place the sink drain (that usually comes with the sink) on the sealant and let dry. Your sink should now look slightly more like a functioning sink.

Flip the sink over and on the bottom of the sink, around the base of the drain place a rubber gasket. Lastly, use your pipe wrench to tighten the lock-nut to ensure the drain is safely secured in place.

Add The Faucet

Place your sink back in the counter and ensure it's fully parallel to the counter edge. There should be a clear area at the top of your sink for the faucet. When you place the faucet, ensure that it sits parallel to the back of the sink. You can simply tighten the faucet in place with your hands, you will not usually need to use a wrench.

Secure The Sink In Place

Now you're ready to secure your sink in place. Remove the sink from the hole in the countertop. Use the caulking gun to apply caulk for kitchens and bathrooms around the outside of the hole. The sink will be placed on top of the calk so ensure that there is an ample amount to keep the sink in place. Stay very close to the edge of the outline of the sink.

Place The Sink In The Countertop

Very slowly place your new sink in the cut-out area, over the calk on the countertop. Slide it slightly to ensure it's parallel to the wall and press down to ensure it's in place. Allow a few minutes for the caulking to dry.

Tighten Screws

Under the sink, tighten the mounting screws with your screwdriver. Each sink is different depending on the style and model of your sink so follow the instructions that come with your sink for specific information on tightening the screws that keep it in place. These usually come with your sink but if they do not, they are easy to find at your local hardware store.

Connect The Wastepipe To The Drain

The waste-pipe is a long, straight pipe, not to be confused with the p-trap, which is curved into a “U” shape. The waste pipe connects directly with the drain in the bottom of the sink. You can simply use your hands to tighten the waste pipe to the lock-nut (connects to the sink drain) on the bottom of the sink. You can also use a wrench to tighten it.

Connect The Wastepipe To The P-Trap

The p-trap is the curved pipe that connects the waste pipe to the wall pipe. Its unique shape helps to prevent backflow and odor that could otherwise be harmful to your sink.

Turn The Water Back On

Test your work by turning the water valve back on. Use the faucet of your new sink and check carefully for leaks. If there are leaks anywhere, turn the water valve back off and tighten the areas that appear to be leaking. If there are still areas that leak, never hesitate to call your plumber.

Call Your Plumber

At Hillcrest Plumbing & Heating, we bring over 50 years of experience to the plumbing industry. We offer 24/7 emergency plumbing services so contact us if you are experiencing a plumbing emergency. Our team of talented plumbers would be happy to help install your bathroom or kitchen sink. Give us a call! If you tried installing your sink at home, comment below and share your experiences.