If you are anyway unsure, we always advise that you seek professional assistance for you tap installation.
Before you grab your toolbox, make sure you note what type you have. Most basins will be fitted with either a pillar tap or a mixer tap. Once you’ve noted your type of tap, it’s important to note whether you’ll be replacing a tap or installing a tap in a place that has never had one before.
The former option will make your job a bit easier. If you are replacing an existing tap with a new one, it makes sense to use the existing plumbing wherever possible.
Firstly, turn off the water supply, either at the isolation valve or the main stopcock if you don’t have an isolation valve. Then, with your basin spanner, disconnect your supply pipe from the current tap so it can be removed.
Use the basin spanner to access both the nut on the tap and the backing nut and undo the old and tighten the new. Poke the end of the spanner up to the compression nut o the base of the tap and wrap the jaws around it until you have a firm grip on the nut.
Then carefully apply pressure to the nut to undo it. Using the basin spanner again, put it under the sink, wrapping the jaws around the backing nut on the base of the tap that holds it to the sink. Undo it and fully remove it.
Once the old tap is removed, clean the tap hole well to remove any dirt or grime, as this new tap will hopefully be staying there for a while. Once cleaned, take your new tap and drop it through the tap hole. Ensure it is centrally positioned over the tap hole and reach underneath and screw up the backing nut until it’s finger tight.
Now, position yourself under the sink and use your basin spanner to fully tighten the backing nut, ensuring the tap is lining up on top of the basin as you are tightening it (a pair of extra eyes might be good, or just regularly pop your head up).
Then screw the tap end of your tap connector on to the base of your tap, finger tight first and then some pinching with the basin wrench. With the tap end connected, you can now connect the other end to the supply pipe.
If you’re using the same connector, then push on the push fit or add a compression nut before tightening with a wrench. Once the pipe is prepped and ready, push on the push fitting until it goes the full way down the pipe and then pull it back gently to ensure it is engaged.
With everything connected up and assembled, all that is left is to run the water to check for any leaks. If there’s some leaking, don’t worry, just check all of your joints and carefully tighten any that are leaking. If everything looks good, then congratulations, you’ve changed a tap!