How to Install a Wall Mount Sink: Expert Guide

How to Install a Wall Mount Sink?

To install a wall mount sink, you will need to start by shutting off the main water supply valve and disconnecting the water and drain lines.

Remove the vanity top and assess the existing plumbing for any reworking that may be needed.

If plumbing lines need to be moved, mark and cut a 2 x 3-ft.

access hole in the drywall.

Otherwise, cut a hole large enough to install blocking for anchoring the sink.

Create a shopping list of plumbing parts and tools before cutting any pipes, and check for electrical cables before cutting open the wall if there are electrical outlets on either side.

Cut off the water supply and drain lines at least 1 ft away from the old locations, and install support brackets at the recommended height of 21 to 23 inches above the floor.

Solder caps need to be placed on the ends of the supply tubing, and drain line parts need to be cut and cemented to fit the new center position.

Add blocking to support sink bolts and remove more drywall if necessary.

Attach sink mounting bolts to the blocking using pilot holes and mounting nuts, and tape, sand, prime, and paint or tile the drywall seams.

Follow the sink directions to determine the height for attaching the sink, and install blocking behind the existing drywall to support the sink.

Install shutoff valves by cutting water supply lines and using compression fitting valves.

Install the faucet and sink tailpiece according to the manufacturer’s instructions.

Hang the sink by slipping it over the mounting bolts and tightening the nuts.

Connect the supply lines to the supply valves and the drain line by cementing a new nipple into the adapter and elbow, and slipping the P-trap into the adapter.

Finally, hang the sink on the anchors, tighten the nuts, and test for leaks by turning on the valves.

Key Points:

  • Start by shutting off main water supply valve and disconnecting water and drain lines
  • Assess existing plumbing and make any necessary changes, such as moving plumbing lines or installing blocking
  • Create a shopping list of plumbing parts and tools and check for electrical cables before cutting open the wall
  • Cut off water supply and drain lines at least 1 ft away from old locations and install support brackets at recommended height
  • Place solder caps on ends of supply tubing and cut and cement drain line parts to fit new center position
  • Install shutoff valves, faucet, sink tailpiece, and connect supply lines and drain line


Did You Know?

1. In early civilizations, wall-mounted sinks were a luxury mainly reserved for royalty and the affluent.

2. The first documented evidence of wall-mounted sinks can be traced back to ancient Greece, where marble basins were installed in public bathhouses and wealthy households.

3. The idea behind the design of wall-mounted sinks was not only for convenience but also for hygiene purposes, as it prevented the accumulation of stagnant water or dirt on the floor.

4. Wall-mounted sinks gained popularity during the Victorian era, as the concept of indoor plumbing became more prevalent and homeowners sought to incorporate sanitary fixtures into their homes.

5. The invention of porcelain enamel in the late 19th century revolutionized the manufacture of wall-mounted sinks, as it allowed for a smooth and easy-to-clean surface, enhancing both functionality and aesthetic appeal.

Why Choose A Wall-Hung Sink?

Installing a wall-hung sink in a bathroom can have several benefits:

  • It makes the space feel larger and more open by removing the bulky vanity that typically comes with a traditional sink.
  • Easier to clean: With no cabinet or vanity obstructing access to the floor, it becomes simpler to sweep and mop the area underneath the sink.
  • Popular choice for bathrooms with limited space or for those who prefer a minimalist aesthetic.
  • It enhances the overall design and aesthetics of the bathroom, offering a sleek and modern look that can elevate the style of any bathroom.

A wall-hung sink creates a sense of spaciousness in the bathroom.

The floating design creates an illusion of elegance and sophistication.

Considerations For Storage Space

While wall-hung sinks offer numerous advantages, there is a tradeoff when it comes to storage space. Unlike traditional sinks with vanities or cabinets, wall-hung sinks do not provide built-in storage. This can be a concern for those who require ample space for storing bathroom essentials and cleaning products.

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To address this issue, it is essential to consider alternative storage solutions. One option is to add a larger medicine cabinet, which can provide additional space for storing toiletries and other bathroom items. Freestanding cabinets or shelving units can also be placed nearby to compensate for the lack of storage.

Furthermore, thoughtful organization and decluttering can help maximize the available space. By minimizing the number of items stored and optimizing the use of vertical space, it is possible to maintain an organized and functional bathroom despite the limited storage options.

  • Consider adding a larger medicine cabinet
  • Use freestanding cabinets or shelving units
  • Minimize the number of items stored
  • Optimize the use of vertical space

Gathering The Necessary Tools And Supplies

Before starting the installation process, it is essential to gather all the necessary tools and supplies. Plumbing experience is recommended for this project, as it involves working with pipes and fittings. Additionally, standard carpentry tools such as a screw gun, wrenches, and slip-joint pliers will be required.

For the plumbing aspect of the installation, specific tools may be needed depending on the materials being worked with. Copper-working tools such as a pipe cutter, fitting cleaners, torch, flux, and solder may be necessary if moving copper water lines. Alternatively, a hacksaw, cleaner, and cement for plastic may be required if moving drain lines.

It is also crucial to have the appropriate mounting hardware and accessories specific to the chosen wall-hung sink. These can be found by searching online or browsing manufacturers’ catalogs. While home centers may have some utilitarian sinks in stock, a larger selection can often be found through specialized suppliers.

Preparing The Plumbing And Drywall

To begin the installation process, shut off the main water supply valve.
Next, disconnect the water and drain lines and remove the existing vanity top.
It is important to assess the existing plumbing in order to determine if any reworking is necessary.

If there is a need to move plumbing lines, mark and cut a 2 x 3-ft. access hole in the drywall.
To anchor the new drywall patch, nail or screw backing boards to the studs.
However, if no plumbing lines need to be moved, cut a hole large enough to install blocking for anchoring the sink.

Before cutting any pipes, create a shopping list of plumbing parts and tools.
Make sure to check the pipe sizes and create a list of fittings and tubing lengths needed for the new positions.
Additionally, if there are nearby electrical outlets, it is crucial to check for electrical cables before cutting open the wall.

  • Shut off the main water supply valve
  • Disconnect water and drain lines
  • Remove existing vanity top
  • Assess existing plumbing
  • Mark and cut a 2 x 3-ft. access hole in the drywall (if plumbing lines need to be moved)
  • Nail or screw backing boards to the studs (if plumbing lines need to be moved)
  • Cut a hole large enough to install blocking for anchoring the sink (if no plumbing lines need to be moved)
  • Create a shopping list of plumbing parts and tools
  • Check pipe sizes
  • Create a list of fittings and tubing lengths needed for the new positions
  • Check for electrical cables before cutting open the wall
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Installing The Sink And Connecting The Plumbing

Once the plumbing and drywall preparations are complete, the sink installation can begin. It is important to order the sink and faucet well in advance to account for any lead time for special-order items.

Here are the steps for installing the sink:

  1. Anchor the support brackets at the desired height on the wall.
  2. Cut the tubing lengths using a tubing cutter. You can purchase support brackets or make your own by cutting tubing lengths 1 inch longer than the stud space and flattening the ends.
  3. Place solder caps on the ends of the supply tubing.
  4. Clean and flux the fittings and tubing ends before soldering them back together.
  5. After soldering each joint, turn on the water to check for any leaks.
  6. Cut and cement the drain line parts to fit the new center position. Use a transition coupling to join the new drain line to the existing one.
  7. Install blocking behind the existing drywall to support the sink. Secure the blocking to the studs using screws.
  8. Attach sink mounting bolts to the blocking through pilot holes. Tighten the mounting nuts.
  9. Tape, sand, prime, and paint or tile the drywall seams to create a finished look.

  10. Remember to order the sink and faucet well in advance

  11. Use a tubing cutter for cutting the tubing lengths
  12. Consider using support brackets or making your own
  13. Place solder caps on the ends of the supply tubing
  14. Check for leaks after soldering each joint
  15. Use a transition coupling to join the new drain line with the existing one
  16. Install blocking behind the existing drywall to support the sink
  17. Tape, sand, prime, and paint or tile the drywall seams for a finished look.

Note: Proper planning and execution are key to a successful sink installation.

Testing For Leaks And Finishing Touches

To ensure a watertight installation, it is crucial to test for leaks before considering the project complete. Shutoff valves can be installed by cutting the water supply lines and using compression fitting valves. The faucet and sink tailpiece should be installed according to the manufacturer’s instructions.

To prevent leaks, pipe dope should be applied to the threads of supply line compression fittings and tightened onto the faucet supply lines. The sink can then be hung by slipping it over the mounting bolts and tightening the nuts. Supply lines should be bent and cut to meet the supply valves, and compression rings and nuts should be used to connect them.

The drain line can be connected by cutting a new nipple, cementing it into the adapter and elbow, and slipping the P-trap into the adapter. The drain assembly parts should be aligned and tightened, and sink accessories can be installed. Once the sink is securely hung on the anchors, the screws should be tightened.

If copper lines were cut, they should be cut off 1 inch past the wall and compression fitting valves should be slipped on. Supply tubes should be cut to the appropriate length, and nuts should be tightened for a leak-proof connection. The sink drain assembly should be installed by packing the underside of the sink strainer flange with plumbers’ putty.

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After ensuring the sink is level, the screws should be tightened. Lastly, the faucet can be connected to the water supply using flexible water supply hoses and a wrench. The valves can be turned on to test for leaks, and if necessary, the connections can be tightened further.

Installing a wall-mount sink can be a DIY project that enhances the look and functionality of a bathroom. By carefully considering storage options, gathering the necessary tools and supplies, preparing the plumbing and drywall, installing the sink, connecting the plumbing, and testing for leaks, it is possible to achieve a successful installation. With attention to detail and careful execution, a wall-mount sink can transform a bathroom into a stylish and efficient space.

Frequently Asked Questions

How does wall mounted sink work?

A wall-mounted sink operates by adhering directly to the wall, allowing the pipes underneath to be visible. This design feature makes installation and replacement convenient and efficient. Additionally, one can choose to install cabinets or ceramic columns underneath the sink, providing additional storage possibilities or concealing the exposed plumbing for aesthetic purposes. This customizable approach offers flexibility and functionality to suit individual preferences and space requirements.

What adhesive to attach sink to wall?

For attaching a sink to a wall, it is recommended to utilize Power Grab ‘n’ Bond adhesive. This adhesive is specifically designed to provide exceptional adhesion power, ensuring a secure attachment between the sink and the wall. By applying Power Grab ‘n’ Bond beneath the sink where it meets the base, you can enhance the adhesive strength and promote a durable bond. Easily accessible at local suppliers, Power Grab ‘n’ Bond is the ideal adhesive choice for securely mounting a sink to a wall.

Are wall mounted sinks a good idea?

Wall-mounted sinks are indeed a great idea due to their space-saving nature and versatility in accommodating various sink styles. In bathrooms where space is limited, these sinks can be a valuable solution as they free up precious floor area, creating a more open and visually appealing environment. Additionally, wall-mount sinks provide the flexibility to select any sink design that matches your bathroom aesthetics without compromising on functionality. Whether you prefer a modern or traditional style, these sinks seamlessly blend into your bath space, enhancing its overall appeal and functionality.

What are the advantages of a wall mounted sink?

One advantage of a wall mounted sink is the compactness and the space it provides. With a wall hung basin, there is ample room around it, making cleaning and maintenance a breeze. Unlike vanities that have multiple hidden corners, a wall mounted sink lacks those nooks and crannies, ensuring a quick and hassle-free cleaning experience. Additionally, with no need to bend or kneel down to reach a sink at floor level, accessing and utilizing the space becomes much more convenient.

Furthermore, the absence of a vanity in a wall hung basin offers both aesthetic and practical advantages. The clean, minimalist design of a wall mounted sink can enhance the overall visual appeal of a bathroom. The open space beneath the sink can also be utilized for storage purposes or to create a more spacious atmosphere in smaller bathrooms. Overall, the advantages of a wall mounted sink lie in its practicality, convenience, and ability to maximize space while maintaining a sleek and modern look.

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