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How to Install a Pedestal Sink

How to Install a Pedestal Sink

Not everyone has a big bathroom. It’s the reason why some people choose pedestal sinks. They are a more stylish and formal alternative to countertop sinks, especially if the space is too small. Compared to countertop sinks, it is easier to install. If you plan to DIY, you need to know how to install pedestal sink.

Take note that installing a pedestal sink requires a certain level of skill. Beginners can try, but the plumbing should be done by a professional. Here is a step-by-step tutorial on how you can properly install a pedestal sink in your bathroom.

Preparing the Materials

Before you start your pedestal sink installation, you should first prepare all the materials that you’ll need. It’s better to buy everything before you start so you won’t have to waste so much time searching for the materials that you need. You can save more time if you already have everything that you’re going to use. Here is a list of the things that you might need for the installation:

  • Pedestal sink and base
  • Pop-up drain assembly
  • Matching faucet
  • Teflon tape
  • Pipe joint compound
  • Lag bolts or anchors
  • Silicon and adhesive caulk
  • Plumber’s putty

This is just the basic list. Depending on the condition of your bathroom, you might need a few other things to complete the task. You might also need the help of a plumber if the waste pipe is not fit for the pedestal sink. They will install a new waste pipe so it would fit properly.

Tool List

Aside from the basic materials, you need to have the necessary tools to install your pedestal sink. Knowing how to install pedestal sink is one thing, but you will need the right tools to put everything together. We listed down all the possible tools that you need to prepare:

  • Basin wrench
  • Screwdriver
  • Tongue and groove pliers
  •  Socket set
  • Hammer
  • Pipe wrench
  • Putty knife
  • Caulking gun
  • Electric drill with a masonry bit
  • Reciprocating saw
  • Safety glasses

Again, the tools listed above are just the basics. There are instances where you might need other tools to complete the job, especially if the installation is a bit complicated.

Important Things to Know Before Installing a Pedestal Sink

Before you start the installation, there are a few important things that you need to keep in mind. This would help you decide if you should continue or you will just hire someone to do it for you.

1. Skill Level

Installing a pedestal sink requires a certain level of skill, especially if you plan to handle the plumbing. For beginners, it might take around 3 to 5 hours. You have to make sure that everything is in place so the installation would be straightforward. Another requirement is that you know how to use the tools. If you have no idea how to use them, spend a bit more time doing some research.

For intermediate, you will only need around 3 to 4 hours. For experts, it would take 2 to 3 hours and even less depending on the condition of the pipes.

2. Safety

It’s not dangerous to install a pedestal sink. There are no chemicals or any hazards, but you need to be careful when using the tools. Accidents can happen so you should wear safety glasses and gloves when you’re working.

3. Handle with Care

Be prepared to replace a few materials if it’s your first time doing the installation, especially the shutoff valves. They break easily so if you don’t know how to handle them with care, you should buy extras just in case they break.

How to Install Pedestal Sink

Here is a step-by-step instruction on how to install a pedestal sink in your bathroom.

Step 1: Secure the Pedestal Sink to the Wall

The first thing that you need to do is to make sure that the pedestal sink will be fixed into the wall. You need to check if you can bolt the sink into the wall. If there are tiles set on the mortar base, it is enough as long as you use heavy-duty wall anchors.

If there is only plaster or drywall, install blocking under the wall surface as it would support the sink. To accomplish this, remove the plaster or drywall and nail the blocking so the sink can hang properly.

Step 2: Set your Pedestal Sink in Position

Set the pedestal and the basin in position and use 2x4s to make sure that it will be steady. Check the level of the sink from front to back and left to right.

Once you’re done, start marking the mounting holes on the wall for the basin and the pedestal.

Step 3: Drill the Holes

After you marked the mounting holes, get your electric drill and start drilling on the marks and the fasteners that you plan to use.

Step 4: Prepare the Basin

Once the holes are drilled, you should get the faucet and the drain and install them on your basin. You should also get the water supply lines and make sure that it is connected to the faucet before you attach them to the wall.

Step 5: Attach the Basin to the Wall

How to Install a Pedestal Sink

Put the basin and pedestal in position and start bolting the basin in the wall. Take note that the basin might crack if you over-tighten the bolts. Since the basin is already supported by some 2x4s, the next step is to remove the pedestal underneath.

Step 6: Finish the Drain and Water Supply

We removed the pedestal underneath to completely install the drain and water supply. We will also test if there are leaks. If you noticed a leak, you should use Teflon tape and secure the fittings.

Remember that this is a crucial step and you should never slip the pedestal back in place until you checked all the parts for leaks

Step 7: Bolt the Pedestal to the Floor

How to Install a Pedestal Sink

After slipping the pedestal back to its position, it’s time to fix it on the floor. You can bolt it to the floor, but you can also use adhesive caulk in the top and bottom of the pedestal if it’s not designed for floor bolts.


You can also check our article on Types of Kitchen Sinks.


Knowing how to install pedestal sink can help you save more money in the long run. As long as you know how to properly install it, you won’t have to hire someone to do it for you. However, the supply lines and other plumbing tasks should only be handled by a licensed plumber to prevent any problems in the future.

If you are looking for amazing bathroom fixtures, we can help you find the best one.

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