Replacing a pedestal sink may seem like a daunting task, but it’s actually a relatively simple plumbing project that can be completed in a few hours. Before you begin, gather your tools and materials, including a new pedestal sink, a wrench, a screwdriver, a level, and a caulk gun. Additionally, you will need to turn off the water supply to the sink and drain the water from the sink and faucet.
Once you have gathered your tools and materials, you can begin the process of removing the old sink. First, disconnect the water supply lines from the sink. Then, use a screwdriver to remove the screws that hold the sink to the wall. Carefully lift the sink off the pedestal and set it aside. Clean the pedestal and the floor around the sink. Apply a bead of caulk around the base of the pedestal and set the new sink on top of the pedestal. Reconnect the water supply lines and turn on the water to test for leaks. Finally, use a level to ensure that the sink is level and adjust the pedestal as needed.
Removing the Old Sink
Before removing an old pedestal sink, it’s crucial to ensure safety. Turn off the water supply valves beneath the sink and open the faucet to release any remaining water.
Disconnecting the Water Lines
- Locate the water supply lines: Identify the two flexible water lines connected to the sink’s base.
- Use a wrench to loosen the nuts: Turn the nuts counterclockwise with an adjustable wrench or pliers to loosen them.
- Gently pull the lines away: Carefully slide the lines out from behind the sink, taking care not to damage them.
- Plug the water lines: Insert the included plugs or use rubber caps to seal the open ends of the water lines, preventing water from flowing.
Detaching the Sink from the Pedestal
- Support the sink: Position one hand beneath the sink’s basin to prevent it from crashing down.
- Remove the mounting bolts: Use a screwdriver to unscrew the bolts that attach the sink to the pedestal.
- Lift the sink straight up: Carefully lift the sink straight up and away from the pedestal.
- Remove the old sealant: Use a utility knife or putty knife to remove any old caulk or sealant around the sink’s base.
- Clean the pedestal: Wipe down the pedestal with a wet sponge or cloth to prepare it for the new sink.
| Tool |
Description |
| Adjustable wrench or pliers |
For loosening water supply nuts |
| Screwdriver |
For removing mounting bolts |
| Utility knife or putty knife |
For removing old sealant |
Preparing the New Sink
Before you install the new sink, you need to prepare it. This involves attaching the legs to the basin and installing the faucet. Here are the steps on how to do it:
Attaching the Legs to the Basin
1. Place the sink upside down on a soft surface, such as a carpet or towel, to protect the finish.
2. Apply a bead of silicone sealant around the base of each leg.
3. Align the legs with the corresponding holes in the basin.
4. Screw the legs into the basin until they are snug. Do not overtighten.
5. Allow the silicone sealant to dry completely before proceeding.
Installing the Faucet
1. Insert the faucet into the hole in the sink.
2. Secure the faucet with the mounting nuts that came with the faucet.
3. Tighten the nuts until the faucet is snug. Do not overtighten.
4. Once the faucet is installed, connect the water supply lines to the faucet.
| Tool |
Use |
| Adjustable wrench |
Tightening and loosening nuts |
| Silicone sealant |
Sealing the base of the legs |
| Plumber’s tape |
Sealing the threads on the water supply lines |
Installing the Drain
1. Remove the old drain assembly. Use a wrench to loosen the nuts holding the drain assembly in place. Once the nuts are loose, you can pull the drain assembly out of the sink.
2. Clean the drain hole. Once the old drain assembly is removed, you need to clean the drain hole. Use a scrub brush and some cleaning solution to remove any dirt or debris from the hole.
3. Install the new drain assembly. Apply a bead of plumber’s putty around the base of the new drain assembly. Then, insert the drain assembly into the drain hole and tighten the nuts until they are snug. Make sure not to overtighten the nuts, as this can damage the drain assembly.
| Tools you need: |
| – Adjustable wrench |
| – Putty knife |
| – Plumber’s putty |
| – New drain assembly |
Connecting the Water Supply
Shutting Off the Water Supply
Locate the shut-off valves under the sink. If there are none, turn off the main water valve.
Disconnecting the Water Lines
Using an adjustable wrench, loosen the nuts connecting the water lines to the faucet.
Connect the New Faucet
Wrap Teflon tape around the threads on the new faucet tailpieces. Connect the water lines to the faucet and hand-tighten the nuts. Use an adjustable wrench to further tighten, but be careful not to overtighten.
Installing the Drain Assembly
Place a washer and then the drain flange over the drain hole in the sink. Insert the drain tailpiece into the flange and secure it with a nut.
Check for Leaks
Turn on the water supply slowly and check for leaks. If you find any, tighten the connections or adjust the drain assembly.
Tips for Connecting the Water Supply
|
Problem |
Solution |
| Leaking at the faucet or sink base |
Re-tighten the corresponding connections. |
| Leaking at the drain assembly |
Adjust or tighten the drain flange or nut. |
| Water hammer noise when turning off the faucet |
Install water hammer arrestors on the water lines. |
Mounting the Sink on the Pedestal
Once the pedestal is in place, it’s time to mount the sink. Here’s how to do it:
1. Position the Sink on the Pedestal
Carefully lift the sink and place it on top of the pedestal. Align the sink’s drain hole with the pedestal’s drain hole.
2. Apply Plumber’s Putty
Apply a generous bead of plumber’s putty around the underside of the sink flange, where it meets the pedestal. This will help to create a watertight seal.
3. Tighten the Nuts
Reach underneath the pedestal and tighten the nuts that secure the sink to the pedestal. Do not overtighten the nuts.
4. Install the Drain Assembly
Insert the drain assembly into the drain hole in the sink and tighten it securely.
5. Install the Tailpiece and Trap
Connect the tailpiece to the drain assembly and then attach the trap to the tailpiece. The trap is a curved pipe that prevents sewer gases from escaping into the room.
| Trap Types |
Description |
| P-Trap |
Most common type, usually made of plastic |
| S-Trap |
Less common, typically used in older homes |
| Continuous Trap |
One-piece design, easy to install and clean |
Caulking the Base
Once the pedestal sink is secure, it’s time to caulk the base to prevent water from seeping underneath and causing damage. Here’s a detailed guide:
- Clean the base of the sink and the floor thoroughly with a damp cloth to remove any dirt or debris.
- Apply painter’s tape along the edges of the base and the floor to create a clean caulk line.
- Load a caulking gun with a mildew-resistant silicone caulk specifically designed for bathrooms.
- Cut the tip of the caulk tube at a 45-degree angle to create a small opening.
- Hold the caulking gun at a 45-degree angle and apply a continuous bead of caulk around the base of the sink, where it meets the floor.
- Smooth out the caulk with a damp finger or caulk tool to create a clean and even seal. Refer to the table below for detailed instructions on how to smooth out the caulk using different tools:
| Tool |
Instructions |
| Finger |
Wet your index finger and run it along the caulk line, pressing down gently to smooth it out. |
| Caulk tool |
Use a plastic or metal caulk tool to apply pressure and shape the caulk. Hold the tool at a 45-degree angle and drag it along the caulk line, pressing down firmly. |
| Sponge |
Dampen a sponge and squeeze it to create a rounded edge. Run the sponge over the caulk line, applying light pressure to smooth and shape it. |
Remove the painter’s tape immediately after caulking to prevent it from sticking to the caulk. Allow the caulk to dry completely before using the sink.
Installing the Faucet
Installing the faucet is a straightforward process that can be completed in a few steps.
- Gather your materials. You will need the following materials to install a faucet: a new faucet, a wrench, a screwdriver, and plumbers putty.
- Turn off the water supply to the sink. Locate the shut-off valves under the sink and turn them off.
- Disconnect the old faucet. Use a wrench to loosen the nuts that hold the faucet in place. Once the nuts are loose, you can disconnect the faucet from the water supply lines.
- Install the new faucet. Place the new faucet on the sink and tighten the nuts that hold it in place.
- Connect the water supply lines. Connect the water supply lines to the new faucet. Make sure to tighten the nuts securely.
- Install the aerator. The aerator is the small screen that is located at the end of the faucet. Install the aerator on the faucet and tighten it securely.
- Turn on the water supply and check for leaks. Turn on the water supply to the sink and check for leaks. If there are any leaks, tighten the nuts that hold the faucet in place until the leaks stop. Tightening the water supply lines to the faucet.
| Step |
Action |
| 1 |
Apply a thin bead of plumbers putty around the base of the water supply lines. |
| 2 |
Screw the water supply lines onto the faucet. |
| 3 |
Tighten the nuts on the water supply lines with a wrench. |
Final Touches
8. Connect the Drain and Supply Lines
Meticulously connect the drain line to the sink drain and tighten with a wrench. Ensure a snug fit to prevent leaks.
Next, attach the supply lines to the corresponding faucets on the sink. Use two adjustable wrenches: one to hold the line and the other to tighten the nut.
Tip: To prevent cross-threading, lightly apply plumber’s tape to the threads before tightening.
| Cold Water Supply |
Hot Water Supply |
| Blue PEX Line or Blue Handle |
Red PEX Line or Red Handle |
9. Install the Faucet
Position the faucet over the pre-drilled holes in the sink and insert the mounting bolts from underneath. Secure the faucet with the provided nuts and washers. Snug them up firmly but avoid overtightening.
10. Seal the Base of the Pedestal
Using a caulk gun, apply a thin bead of silicone caulk around the base of the pedestal where it meets the floor. Smooth out the caulk with a damp rag or finger.
Troubleshooting Common Issues
Faucet Leaks
Leaking faucets can be caused by worn-out washers or seals. Try tightening the packing nut or replacing the washer or seal.
Sink Drain Leaks
Drain leaks can occur at the connection between the drain and sink. Tighten the drain nut or replace the drain gasket.
Pedestal Cracks
If the pedestal develops cracks, it may need to be replaced. You can try repairing small cracks with epoxy, but larger cracks may require replacement.
Loose or Wobbly Sink
A loose sink can be caused by worn-out mounting bolts or a weak pedestal. Tighten the mounting bolts or replace the pedestal.
Blocked Drain
A blocked drain can be caused by hair, soap scum, or other debris. Try using a drain cleaner or snaking the drain to remove the blockage.
Slow Drain
A slow drain can be caused by a mineral buildup or a clog deeper in the drainpipe. Try using a drain cleaner or snaking the drain to clear the blockage.
Discolored Sink
Discoloration can be caused by mineral deposits or stains. Try using a vinegar-based cleaner or a bleach solution to remove the stains.
Chipped or Scratched Sink
Chipped or scratched sinks can be repaired using a repair kit or by contacting a professional.
Drain Not Centered
If the drain is not centered, it may be due to an improper installation. Make sure the drain is properly aligned and tighten the drain nut.
Additional Considerations
1. Plumbing Access
Ensure you have adequate access to the plumbing underneath the sink. If the shut-off valves are difficult to reach or the drainpipe is obstructed, you may need to make additional adjustments or call a plumber for assistance.
2. Pedestal Height
Choose a pedestal sink with a height that complements your bathroom design and personal preferences. Consider the height of the countertop, fixtures, and user’s height to ensure a comfortable experience.
3. Drain Type
Determine the type of drain required for your sink (pop-up, clicker, or overflow) and ensure the appropriate drain assembly is available.
4. Backsplash
If desired, consider adding a backsplash to protect the wall behind the sink from water splashes. Choose a material that complements the sink and bathroom decor.
5. Faucet Type and Placement
Decide on the type of faucet (single-handle, two-handle, wall-mounted) and its placement relative to the sink and countertop. Consider the reach and functionality you desire.
6. Overflow Hole
Some sinks have an overflow hole to prevent water from overflowing the basin. Ensure you have the appropriate drain assembly and stopper to accommodate this feature if necessary.
7. Soap Dispenser
Consider incorporating a soap dispenser into your sink design for convenience. Choose a dispenser that complements the sink and bathroom style.
8. Towel Bar
A towel bar mounted near the sink can provide a convenient place to hang towels. Choose a towel bar that coordinates with the sink and bathroom decor.
9. Shelf
Some pedestal sinks feature a built-in shelf for storage. This can be a useful addition for organizing bathroom items.
10. Vanity Cabinet
For additional storage space, consider pairing your pedestal sink with a vanity cabinet. Choose a cabinet that complements the sink style and bathroom design, and ensure it fits comfortably in the available space.
How to Replace a Pedestal Sink
Replacing a pedestal sink is a relatively simple plumbing project that can be completed in a few hours. By following these steps, you can save yourself the cost of hiring a plumber.
Tools and materials you will need:
- New pedestal sink
- Basin wrench
- Adjustable wrench
- Plumber’s putty
- Hacksaw
- Tape measure
- Level
- Caulk gun
- Caulk
- Utility knife
Instructions:
- Turn off the water supply to the sink. This is typically done by closing the shut-off valves located under the sink.
- Disconnect the water supply lines from the sink. Use a basin wrench to loosen the nuts that connect the water supply lines to the sink.
- Disconnect the drainpipe from the sink. Use an adjustable wrench to loosen the nuts that connect the drainpipe to the sink.
- Lift the sink off of the pedestal. Be careful not to damage the pedestal or the sink.
- Remove the old putty from the rim of the pedestal. Use a utility knife to scrape away the old putty.
- Apply a new bead of plumber’s putty to the rim of the pedestal. Use your finger to smooth out the putty.
- Set the new sink on the pedestal. Make sure that the sink is level.
- Connect the drainpipe to the sink. Tighten the nuts that connect the drainpipe to the sink.
- Connect the water supply lines to the sink. Tighten the nuts that connect the water supply lines to the sink.
- Turn on the water supply to the sink. Check for leaks.
- Caulk around the base of the sink. This will help to prevent water from leaking out from under the sink.
People Also Ask About How to Replace a Pedestal Sink
Is it difficult to replace a pedestal sink?
No, replacing a pedestal sink is not difficult. It is a project that can be completed in a few hours by someone with basic plumbing skills.
What is the cost of replacing a pedestal sink?
The cost of replacing a pedestal sink will vary depending on the type of sink you choose and the cost of labor in your area. However, you can expect to pay between $100 and $300 for a new pedestal sink and installation.
How long does it take to replace a pedestal sink?
Replacing a pedestal sink typically takes between 2 and 4 hours. However, the time it takes will vary depending on your skill level and the complexity of the project.
