Undermount Sink Installation Guide To Upgrade Your Kitchen

Undermount Sink Installation

The sink is one of the most important fixtures in the kitchen. It’s where you wash dishes, prepare food, and clean up messes. If you’re looking to upgrade your kitchen, installing an undermount sink is a great way to add style and functionality. In this article, we’ll walk you through the steps of undermount sink installation.

What is an Undermount Sink?

An undermount sink is a type of sink that is mounted underneath the countertop, rather than on top of it. This gives the kitchen a sleek and modern look, as well as making it easier to clean the countertop around the sink. Undermount sinks are available in a variety of materials, including stainless steel, porcelain, and granite.

Tools and Materials Needed for Undermount Sink Installation

Before you start the installation process, make sure you have all the necessary tools and materials. You’ll need:

  • Undermount sink
  • Sink clips
  • Silicone sealant
  • Screwdriver
  • Adjustable wrench
  • Plumbers putty
  • Caulking gun
  • Jigsaw
  • Router

Step-by-Step Guide to Undermount Sink Installation

Step 1: Prepare the Countertop

The first step in undermount sink installation is to prepare the countertop. Turn off the water supply and disconnect the plumbing. Remove the old sink and clean the countertop thoroughly. Measure the size of the new sink and mark the location on the countertop.

Step 2: Cut the Hole

Using a jigsaw, cut the hole in the countertop for the sink. Use a router to smooth out the edges and ensure a snug fit for the sink.

Step 3: Install the Sink Clips

Once the hole is cut, install the sink clips on the underside of the countertop. These clips will hold the sink in place. Make sure the clips are evenly spaced and tightened securely.

Step 4: Apply Plumbers Putty

Apply plumbers putty around the perimeter of the sink. This will create a seal between the sink and the countertop, preventing water from leaking through.

Step 5: Position the Sink

Carefully position the sink into the hole. Make sure the sink is centered and level. Once the sink is in place, tighten the clips to secure it to the countertop.

Step 6: Apply Silicone Sealant

Apply silicone sealant around the edge of the sink, where it meets the countertop. This will provide an additional layer of protection against water leaks.

Step 7: Reconnect the Plumbing

Reconnect the plumbing, including the drain and water supply lines. Turn on the water supply and check for any leaks. If everything is working properly, you’re done!


Undermount sink installation is a great way to upgrade your kitchen and add style and functionality. While the installation process can be a bit tricky, it’s definitely worth the effort. With the right tools and materials, you can have a beautiful new sink in your kitchen in no time. So go ahead and give it a try – your kitchen will thank you!

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