A Quick Guide to Sink Installation


Q: How do I install a sink in my bathroom or kitchen?

Installing a kitchen or bathroom sink is a significant home project that can be somewhat tricky to accomplish your first time around. However, it is very possible to complete this project if you follow the correct steps throughout the process. Therefore, we’ve compiled a list of these steps to follow, as well as some other things to consider when venturing on this DIY endeavor.

  1.     Take accurate measurements

Before even thinking about the mechanics of how a sink would be implanted in your kitchen or bathroom, you need to consider the more common-sense aspects of the project. This would include measuring the counter top hole your new sink will be going into and writing them down. After writing them down, make sure to take them with you to the store where you will be shopping for a new sink and compare them to the sink you have in mind. The measurements go beyond just the length and width of you sink, but the depth as well. If a sink fits too deep, you’ll need to lower the pipe leading to it. This will require professional assistance. Also, be sure to take note of whether the sink has square or rounded edges. Remember, measure twice just to be safe! Sometimes water damage can cause your counter top to swell, thus making previously accurate measurements now inaccurate. Plus, this water damage is not visible from the top of the counter and it may be worth it to you to get a new counter top to go along with your new sink.

  1.     Assess the Accessories

While buying this new sink, be sure to remember the features of the sink hole in your counter top, specifically the holes. Some sinks may have very large, very small, or multiple faucets and handles. It is crucial that your faucets, handles, and knobs all fit correctly before purchasing your new sink. You can do this by measuring each sink hole, writing them down, and taking them to the store to compare.

  1.     Remove the old sink

This step can be complicated, which is why we’ve decided to break down a normal sink removal into precise steps:

  •   To begin, snap a quick photo of your old sink in the counter top as a reference point. You may need it later.
  •   Shut off all the water, including hot and cold. Also, if applicable, shut off the garbage disposal.
  •   Disconnect all the pipes and drain connections between the plumbing and the sink. Then, disconnect the garbage disposal. Be sure to have any towels ready in case any water is still in the pipes.
  •   With caution, remove the sink clamps if the sink is meant to be removed from the top. If your sink is supposed to be lowered to be removed, releasing these sink clamps will cause it to fall on you. Try to find someone to help you with this step, as the sink might be very heavy, and you will need to either lift it out over the countertop edge or from underneath the sink cabinet.
  1.     Preventive care

When the old sink was removed, you probably noticed the used caulk now around the hole. Be sure to use a pudding knife to scrap that old caulk off. This is also a good time to replace any old supplies, like worn or leaking shut off valves.

  1.     Test fit

After replacing any old material that may need to be removed, take your new sink for a spin. Move the sink in place on or under the counter top to see if it fits correctly. It should be snug and be able to fit through all the necessary holes. Don’t forget to look underneath and inspect the depth of the sink as well. If all comes back good, clean the sink thoroughly. If you can, try to install the faucet head before putting the sink in the countertop. This will make finding the connections easier.

  1.     Install faucet

For this step, consult the manufacturers manual. They should have all the details for the installation process in the manual itself.

  1.     Wrapping everything up

When finishing off this project, use 100% silicone caulk when installing the sink. Line the caulk around the hole of the sink and install new sink clips. Secondly, reconnect any water supply lines and drain tubes. Lastly, connect a garbage disposal, if necessary, and run the sink to check for any leaks. Once you’ve ensured there are no leaks, you’ve done it! Congratulations.


Remember, if you run into any problems along the way, do not hesitate to call us here at Christian Brothers. We can have an expert technician to your home that day to help you with your new sink