Installing a Kitchen Sink

by Dave The Handyman on June 10, 2011

Installing a kitchen sink can be very easy, but just like most DIY projects around the home, it can also be very difficult depending on the age of the old sink, faucet and hoses, as well as the counter tops. Now I am not sure what kind of home improvements you are going through, but if you found this page you are wanting to put in a new kitchen sink, thus upgrading your kitchen, so with that being said let’s get started on your sink installation.

Removing the Old Sink and Faucet

Now if you are replacing your kitchen sink, now would be the ideal time to also put a new faucet it, or if you have a double sided sink, a new garbage disposal too :) . First thing that you need to do before you remove the kitchen sink, is to shut off the water at both the hot and cold valves located under the sink. Once you think that you have both of those valves closed, open up the faucet to drain access water, and to ensure that the water is actually off.

Once you are sure that the water is off, you can untighten the hoses from the faucet to the shutoff valves with either an adjustable wrench or a pair of pliers. Next thing that you are going to have to do is to unhook all of the plumbing, if you have a garbage disposal there is a little more work that is involved, as you will have to remove the garbage disposal by twisting it off the locking bracket, and setting it to the side, then removing the locking device the garbage disposal goes into the sink.

Once you have all of the plumbing pipes unhooked, remove the lock nuts from under the sink, usually you will need a Phillips head screwdriver to do this, though sometimes you may need a 5/16 or even a 5/8 screwdriver depending on what type of brand it is you are working on.

Once you have all of the locking screws loose, just simply lift the sink out from the counter top. But wait, that usually doesn’t work, especially if you are in an older home with older countertops. You may need to get a razor blade and cut underneath where the edges of the sink meet the top of the countertop, as some installers like to put a small bead of caulking around the sink when done installing.

Sometimes it takes a little work to get the old sink out, sometimes, it may even take a hammer to beat it out of there. Now you got your sink out and your faucet may or may not be attached to it. This would be the perfect time to sand and repaint your countertops if needed, but that is a whole other home improvement we will get into later.

Installing the New Kitchen Sink

This process is usually easier than getting the old sink out. Just basically do everything you did to get the old sink out , but reverse the process. Using caulking is optional, in some cases it can add a nice professional look to the finished product. One thing I do though when installing a new sink, is that I hook up the garbage disposal (the top part the disposal hooks up to) and the drain (if you have a double sided sink) BEFORE installing the new sink. Along with installing the faucet on the new sink also, it is a hell of a lot easier putting all of that ON the sink before you put the sink into the countertop, this way you are not fiddling around under the sink trying to hook everything up.

And what I do, is when installing the drain or garbage disposal to the sink, use plumbers putty, it does wonders in making sure that your plumbing doesn’ t leak.

If you have any questions or concerns just leave a comment – if I get enough responses or requests I’ll post some step by step pictures on how I do this.

Leave a Comment

Previous post:

Next post:

Try Angie's List!