How to Fix a Water Leak Around the Sink & Countertop

Hunker may earn compensation through affiliate links in this story. Learn more about our affiliate and product review process here.
Image Credit: Pascal Sirletti / EyeEm/EyeEm/GettyImages

Kitchen sinks are used daily and can certainly withstand quite a bit of wear and tear. It's important to maintain them, even in the ways we might not always think about. One of the best ways to keep your kitchen sink in order and also protect your countertops from water leaks is by replacing the caulk on a regular basis — a job that's relatively easy when you know the kind of caulk you need and the basics of caulking. If you've got water leaking around your sink and countertop, here's how to fix it.


Why You Should Replace Kitchen Sink Caulking

Over time, caulking may crack or fall away, which can leave a gap between your kitchen sink and the countertop. The danger that comes from a caulk-free kitchen sink is that water on the kitchen counter will seep between the sink and the countertop, inevitably leaving lots of water damage. If you notice that your kitchen sink is leaking around the edges and the caulking needs replacing, rest assured that it is a rather easy job to accomplish and will not break the bank.

1. Remove the Old Caulk

If you are replacing the caulk around your kitchen sink, you need to make sure to remove any traces of the old caulk before your new application. This task is best accomplished by using a single-edged razor blade or a utility knife to cut away any of the old caulk. Simply follow the edge of the kitchen sink and the countertop, respectively, since the caulk that must all be removed could be stuck to either edge. Otherwise, the new caulk will not adhere to the surface.


Video of the Day

  • Wipe away the remains of the old caulk. (Some experts suggest using rubbing alcohol around the remains to remove any traces that you may have overlooked.)
  • Let the rubbing alcohol dry.
  • Apply painter's tape around the edges of your sink and countertops leaving only enough space for the caulk.


Some people who are used to applying caulk overlook using painter's tape for straight lines. However, be warned that if you are using a silicone-based caulk, the application process could get fairly messy.

2. Apply the New Caulk

  • Apply the caulk around the desired edge making sure the bead, or line of caulking, is consistent. Try to accomplish the application without breaking the bead.
  • Make sure to slightly overlap the caulk when beginning again to ensure a watertight seal.
  • Spray the area with glass cleaner. The glass cleaner will allow you to run your finger along the edge, giving the caulk a smooth finish, tight seal and removing any excess caulk.
  • If you choose to apply painter's tape for straight-edged lines, make sure to remove the tape immediately after you are done to avoid pulling up the dry caulking once it has set.


Types of Caulk

Caulk is available in a few different types of materials with the most common being silicone or latex. The most popular color choice is simple white caulk. Caulk is also available in a multitude of colors, making it easier to blend it with its surroundings.


The caulk is available in different application forms as well. If you do not own a caulking gun, this could be an extra expense, as a good caulking gun can help get the job done more quickly and also leave a more professional looking finish. If you don't wish to make additional purchases, be sure to purchase a caulk that can be self-squeezed and not extracted by the use of a caulking gun.



Report an Issue

screenshot of the current page

Screenshot loading...