How To Install A Kitchen Sink

Whether it's due to wear or you're looking to upgrade your kitchen, installing a kitchen sink can be a straightforward process. This how-to guide offers all the necessary information so you can get the job done quickly and efficiently. 

• The first thing to do when installing a new kitchen sink is to turn off the water supply. This can be done via the isolation valve or stopcock, usually found under the sink. 

• Next, turn on the kitchen tap to release any remaining water and pressure in the pipes.

• Place a bucket directly underneath the sink to catch any residual water. 

• Use an adjustable wrench to disconnect the hot and cold water supply lines. 

• If your sink has a waste disposal unit or dishwasher connections, these should also be disconnected at this stage.

• Most sinks are held in place by clips underneath the worktop. Loosen and remove these clips using a screwdriver. 

• Carefully cut through the sealant around the sink with a utility knife. Take care not to damage the worktop when doing this.

• Once you’ve cut the sealant free, pry the sink up from the worktop and dispose of it safely and responsibly. 

• Test fit the new sink into the opening to ensure it fits properly. 

• Apply plumber's putty or silicone sealant around the edge of the sink's underside, then position the new sink into the hole. 

• Secure the sink in place by tightening the clips from underneath. 

• If your new sink has a different configuration (e.g., additional bowls or different plug hole locations), you may need to adjust the plumbing accordingly.

• Reconnect the hot and cold water supply lines using thread seal tape on the threads for a watertight seal. 

• Reattach the waste pipe and any other connections for waste disposal units or dishwashers. 

• Refix the tap, ensuring that all connections are tight and secure.

• Turn the water supply back on and check all connections for leaks. 
• Tighten up any fittings if necessary. 
• Finally, apply a bead of silicone around the edge of the sink and worktop to seal any gaps.  This will help to prevent water ingress.