
Are you planning to upgrade your bathroom and install a pedestal sink? While it may seem like a daunting task, with the right tools and knowledge, you can easily complete this project in a few hours. In this guide, we’ll take you through the step-by-step process of how to install a pedestal sink, from preparation to finishing touches.
Introduction

A pedestal sink is a classic and elegant addition to any bathroom. It consists of a sink basin that is supported by a pedestal or column, which hides the plumbing and adds a touch of sophistication to the room. Installing a pedestal sink requires some plumbing and carpentry skills, but with patience and attention to detail, you can easily do it yourself.
Preparation
Before you start the installation process, you need to gather the necessary tools and materials. You will also need to measure and mark the location where you want to install the sink and shut off the water supply. Here’s what you need:
Tools and Materials
- Adjustable wrench
- Pliers
- Screwdriver
- Drill
- Hole saw
- Level
- Measuring tape
- Pencil
- Basin wrench
- Plumber’s putty
- Silicone caulk
- Pedestal sink kit (includes sink basin, pedestal, faucet, drain, and water supply lines)
Measuring and Marking the Sink Location
Measure the height of the pedestal sink and mark the wall accordingly. The sink should be at a comfortable height for you to use, and the pedestal should not be visible. Use a level to ensure that the sink is straight, and mark the location of the mounting holes for the sink basin and pedestal.
Shutting off Water Supply
Shut off the water supply to the bathroom using the shut-off valve. Turn on the faucet to release any remaining water in the pipes. This will ensure that you can work on the plumbing without any water flowing through the pipes.
Installation
Now that you have prepared everything, it’s time to install the pedestal sink. Follow these steps to attach the sink to the wall, connect the water supply lines, and secure the sink to the floor:
Attaching the Sink to the Wall
Place the sink basin onto the pedestal and align the mounting holes on the sink with the marked location on the wall. Use a drill and the appropriate size hole saw to create holes for the mounting bolts. Insert the mounting bolts through the holes and tighten them with a wrench. Make sure the sink is level before tightening the bolts completely.
Connecting the Water Supply Lines
Connect the water supply lines to the faucet on the sink basin. Use a basin wrench to tighten the nuts securely. Turn on the water supply and check for any leaks. If there are no leaks, turn off the water supply.
Securing the Sink to the Floor
Place the pedestal onto the floor and align it with the marked location. Use a pencil to mark the location of the mounting holes on the floor. Remove the pedestal and drill holes into the floor. Insert the mounting bolts through the holes and secure them with nuts. Place the pedestal onto the mounting bolts and tighten the nuts.
Finishing Touches
The final step in installing a pedestal sink is to complete the finishing touches. This involves caulking around the sink, installing the faucet and drain, and reconnecting the water supply.
Caulking Around the Sink
Apply a small amount of plumber’s putty or silicone caulk around the base of the sink where it meets the wall. Smooth out the caulk with your finger or a caulk smoothing tool. This will prevent water from seeping behind the sink and causing damage to the wall.
Installing the Faucet and Drain
Follow the manufacturer’s instructions to install the faucet and drain onto the sink basin. Tighten the nuts securely and turn on the water supply to check for any leaks. If there are no leaks, turn off the water supply.
Reconnecting the Water Supply
Connect the water supply lines to the shut-off valve using a wrench. Turn on the water supply and check for any leaks. If there are no leaks, turn on the faucet and let the water flow for a few minutes to flush out any debris. Congratulations, you have successfully installed a pedestal sink!
Installation
Now that you have prepared the sink and the bathroom, it’s time to install the pedestal sink. Follow these steps to complete the installation process:
Attaching the Sink to the Wall
- Install the faucet and drain onto the sink basin before attaching it to the wall.
- Place the sink basin onto the pedestal and align the mounting holes with the marks on the wall.
- Insert lag bolts into the mounting holes and tighten them with a wrench.
- Use silicone caulk to seal the gap between the sink and the wall.
Connecting the Water Supply Lines
- Connect the water supply lines to the faucet using a basin wrench.
- Tighten the nuts by hand, then give them another quarter turn with the wrench.
- Turn on the water supply and check for any leaks.
- Adjust the water pressure as necessary.
Securing the Sink to the Floor
- Place the pedestal onto the floor and align it with the sink basin.
- Insert lag bolts into the mounting holes at the base of the pedestal and tighten them with a wrench.
- Use silicone caulk to seal the gap between the pedestal and the floor.
Troubleshooting
Sometimes, even with careful preparation and installation, problems can arise. Here are some common issues and how to fix them:
- Leaks: Check all connections and tighten any loose nuts. If that doesn’t work, replace the faulty part.
- Wobbling: Check that the sink and pedestal are level and that the mounting bolts are tight. If the problem persists, add shims under the pedestal.
- Uneven Caulking: Remove old caulk and reapply a fresh bead of silicone caulk.
Conclusion
Installing a pedestal sink can seem intimidating, but with this comprehensive guide, you can do it yourself with ease. Remember to gather all the necessary tools and materials, measure and mark the sink location, shut off the water supply, attach the sink to the wall, connect the water supply lines, and secure the sink to the floor. If you encounter any problems, troubleshoot them and fix them promptly. In no time, you’ll have a beautiful and functional pedestal sink that adds elegance and sophistication to your bathroom.