Ceramic Sink Installation

Updated February 21, 2017

Renovating your bathroom is an exciting time, because you can use your creativity and make your own little masterpiece. Choosing your sink is an important step, but installing it is even more so. If it is not fitted or installed correctly, you will run into problems in the future such as cracks and leaks. Here are some general guidelines to follow.

Punching Tap Holes

Measure the depth of the sink and the length of the pipes to see if the pipes are long enough to extend to the new ceramic sink. If not, add length to the cold and hot water pipes as well as the waste pipe to fit. Cut tap holes in the ceramic sink if necessary.

Mark out the spot where the taps will be fit and make an indentation for the centre of the hole. Use a centre punch to crack the glaze, then a number eight masonry drill to take out the rest of the material starting from the centre.


Use a template to measure the area and the sink. Check to see that the sink lies the same distance from the front as it does to the back, which is usually 1½ to 3 inches each way. Draw the outline of the sink onto the template (the sink must be upside down). Trace the template onto the work surface.

Mark the overlap distance onto the work surface outline to accommodate the edge of the sink to be placed on that surface. Drill four holes into the corners of the sink with a 12mm flat-edge drill bit. Keep everything on the inside of the line that was traced so that you don't find yourself with a hole too big to accommodate the sink you are installing. Support the work surface to prevent it from splitting when you cut it. Use the appropriate jigsaw, equipped with a heel plate to serve as a cutting guide, to cut around the centre of the outline.

The result should be a hole in the work surface that is the right size for the sink to fit into without falling all the way through. The weight of the sink should be supported by the sink link, which rests on top of the surface.


Remove the support and install the sink strainers before placing plumber's putty or caulk along the underside of the rim of the sink. This creates the waterproof seal. Place the sink slowly and carefully into the cut area without moving the putty. Check that you don't scratch the surface of that area as well.

Use small clips to tighten the sink to the surface. Place these at even distances under the lip of the sink and use screws to tighten them. Wipe the excess putty or caulk with a clean cloth. Use white silicone to seal the edges. Attach the cold and hot water taps to the correct places, and install the P-trap using a washer and a slip nut. Take the aerator from the taps and turn the water back on.

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About the Author

Jerry Garner has been writing semi-professionally for more than 15 years. The body of Garner's work includes informative articles, news and current events and historical essays. He is an avid sports fan and frequently writes about outdoor activities online.