How to Install a Bathroom Vanity?

How to Install a Bathroom Vanity?

blog / January, 2024

A vanity is a countertop, sink, and storage space combined into one. By learning how to install a vanity yourself, you can save money on labor and maintain the simplicity and affordability of this bathroom renovation project by avoiding the need to hire a plumber or repairman. With just a few simple tools, most vanities may be installed in two or three hours. In this article, we are going to see how to install a bathroom vanity.

How to Install a Bathroom Vanity?

Bathrooms provide one of the finest returns on your renovation investment, along with kitchens. To modernize your bathroom, changing the vanity, countertop, sink, and faucet is one of the simplest methods to do so. You can give the place a serious makeover for a few hundred bucks, or you can give your bathroom an elegant, spa-like appearance for a thousand dollars or more. It takes less than an hour to remove the old vanity, which is the first step in this simple renovation.

The simplest bathroom vanity installation is done on a unit that has a countertop and integrated sink. The top and vanity cabinet are not attached and the cabinet is simple to assemble and fasten from above because of its open top and rear. Also, the countertop sink unit, which often comes with the faucet already installed, is dropped in once the cabinet is fastened. Connecting the water supply and drain is the last stage. A separate backsplash is included with some vanity sets. Usually, caulk or adhesive is used for installation, following the countertop's installation.

Related Link: Buy Vanity

Your bathroom's style can be easily updated with a new vanity. Additionally, it might offer more counter and storage space. Installing and swapping out a bathroom vanity is a do-it-yourself task. In reality, you can build a bathroom vanity with the help of this instruction in a matter of short steps. In the meantime, you will need the following tools and materials to install your fixture:

  • Cordless drill

  • Drill bits and drivers

  • Hand miter saw

  • Bubble level or laser level

  • Stud finder

  • Caulking gun

  • Utility knife

  • Pencil

  • Vanity cabinet with top

  • Plastic or wood shims

  • 3-inch cabinet screws

  • Adhesive silicone

  • Bathroom-grade silicone caulk

handyman to install bathroom vanity

Step 1: Prepare to Install a Vanity

For installing freestanding vanity against wall, first, you need to switch off the water supply beneath the sink before disconnecting the current vanity or sink piping. To remove the residual pressure, open the faucet and leave it open. Remove the drain P-trap and the hot and cold water supply pipes from underneath the sink. There will be some water leakage from the supply pipes and a large water leak from the P-trap. A bucket should be placed underneath to collect any water that drips out.

Related Link: Buy SHOWER FAUCETS

Step 2 of How to Install a Bathroom Vanity: Remove the Existing Vanity or Sink

Utilizing a drill and driver bit, extract the screws securing the vanity to the wall beneath the sink. Score the caulk along the backsplash with a utility knife. To take the vanity from the wall, carefully pull forward. With the countertop and sink still attached, you can remove the vanity. However, in order to conserve weight, remove the sink and countertop from huge vanities.

Step 3: Locate the Wall Studs

Locate at least one wall stud on the wall behind the vanity position using an electronic stud finder. Mark the stud's center. If it's feasible, carry out the procedure once more to locate a second stud (studs are normally 16 inches apart, center to center). Locate the wall studs in the sidewall if the vanity is enclosed by one.

Related Link: Vessel Sink

installing freestanding vanity against wall

Step 4 of How to Install a Bathroom Vanity: Set and Fasten the Vanity

Take a measurement of the vanity cabinet's height, excluding the countertop, and then transfer this measurement to the sidewall and back wall (if necessary). Draw a straight line at the indicated height using a level.

Set the vanity cabinet in its proper place. Using the line you created, make sure the cabinet is level from side to side and front to back. To level the cabinet, place wood shims underneath if needed. Two 3-inch cabinet screws, inserted through the mounting strip on the back of the cabinet and into each wall stud in the rear wall alone, are used to fasten the cabinet to the wall. After installing a filler strip, you will secure any sidewalls to the wall.


Step 5: Fill the Side Gap (Sidewall Installation Only)

If there is an unfavorable or large space between the sidewall and the cabinet, you can close that space by cutting a thin filler strip. This could entail molding the filler strip to fit around a baseboard or a piece of coved tile that is located at the cabinet's bottom. To accomplish this, "copy" the side wall's profile onto the wood strip using a tiny profile gauge or carpenter's compass. As an alternative, make a paper template that fits the profile and use a pencil to trace the profile onto the filler strip.

how to install bathroom vanity with plumbing in the floor

Utilizing a coping saw or jigsaw, cut out the profile. Try the filler strip on and make any required adjustments. The wood strip should be finished and sanded to match the base cabinet. Screws inserted through the inner edge of the cabinet face frame and into the filler strip's edge are used to secure the strip to the cabinet. If the strip is made of thin material, use a small amount of epoxy to bond it in place instead of screws. Filler strips composed of the same material as the cabinet are included with some vanity kits. If not, you will need to purchase and finish wood that matches the facing of the cabinet.

Related Post: Bathroom Vanity Buying Guide

Step 6: Fasten to the Sidewall (Sidewall Installation Only)

It is advisable to secure the vanity cabinet to the back wall and anchor its side to the sidewall, though this step is occasionally skipped. You must insert blocks into the space to provide support before screwing in the vanity countertop since there is a gap between the side of the cabinet and the wall.

Cut two wooden spacer blocks to a width that is approximately 1/8 inch less than the wall-to-vanity side distance. Put two wood shims in between the wall and the wood spacer blocks. Make sure the drywall screw is long enough to extend at least one inch into the stud when driving it through the cabinet side and into the wall at that spot. As a result, the cabinet's side will press closely up against your shims and spacing blocks.

Also Read: How to Clean Bathroom Faucets

How to install vanity over plumbing

Step 7 of How to Install a Bathroom Vanity: Install the Vanity Top

How to attach a vanity top? Here we will see how to install a bathroom vanity top. To do this, you need to install the sink on the countertop before putting the countertop on the vanity if it is not an inherent part of the countertop. As directed by the manufacturer, install the drain and faucet fittings.

Apply a thin layer of construction glue to the cabinet's upper corners. Ensure that the countertop/sink combination overhangs the cabinet on all exposed sides equally after placing it in place. Certain vanity kits include brackets that attach to the countertop's underside, just beneath the sink. If they were included, use these in addition to the construction adhesive.

Step 8: Install the Faucet and Connect Plumbing

As directed by the manufacturer, install your faucet. Gaining knowledge about how to replace a bathroom vanity will help you install the new fixtures in general. Make sure the sink drain ring is properly supported by the plumber's rope putty. The P-trap should be connected to the new sink drain line. Attach the water valve lines first, then wrap the plumber's tape around in a clockwise orientation. Reattach the faucet connections, tighten them, and turn on the water valves. Check for leaks in all the connections and test your faucet.

Related Post: How to Install a Vessel Sink

Step 9: Install the Backsplash (as Needed)

Now, you need to install the backsplash if needed. In case the backsplash is separate from your vanity, press it firmly against the wall by applying a bead of construction glue to its back in a serpentine pattern.

how to install a bathroom vanity top

Step 10 of How to Install a Bathroom Vanity: Caulk the Joints

Here comes the last step of "how to install a bathroom vanity". In the area where the countertop and wall meet, apply a bead of silicone caulk. If the backsplash is present, caulk the joints where it attaches to the wall and the countertop. Use the vanities only after the caulk has had a full day to cure.

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How to Install Vanity over Plumbing

Installing bathroom vanity over plumbing can be a daunting task, but with a little bit of planning and some handy tips, you can easily tackle this project. Proper preparation is essential for installing a new vanity over plumbing. To do this, you should clear the space, shut off the water supply, and disconnect plumbing to create a solid foundation for a successful installation. Attaching the vanity securely, connecting the plumbing with care, and testing for leaks are crucial steps in ensuring a watertight and stable installation. Prioritize safety and attention to detail for a successful outcome.

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Installing a Bathroom Sink Plumbing Through The Floor

In this section, we will see how to install bathroom vanity with plumbing in the floor. Plumbing through the floor is not as common as plumbing through a wall when installing a vanity, but it is occasionally necessary. An inspector will probably ask you to go through the subflooring if structural joists are located behind the wall of your vanity. When performing an install, access to your pipework is a crucial factor to take into account. For instance, plumbing that has been routed into your floor is typically simple to access if you have a crawlspace or basement. Furthermore, having simple access to your pipes might prevent problems down the road when it comes time to replace or repair them.

Plumbing through a floor is essentially the same as plumbing through a wall in terms of installation procedures. The requirement to raise floor water lines involves a little additional labor. Dealing with floor joists and concrete flooring is the primary problem with floor plumbing, and it may add a significant amount of extra time and money to the project.

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How to Install a Vanity

Find the Best Bathroom Vanities at Golzar Home

A new bathroom vanity is an easy and cost-effective method to update your space. We are going to remove the current vanity and install a new one in its place. With a little preparation and follow-through, you can complete this home repair job. You can swiftly upgrade practically any bathroom in your house if you know how to install a vanity. Additionally, being able to install a vanity top makes it simple to replace your sink.

Golzar Home is one of the major importers of tier-1 bathroom and kitchen accessories, including vanities, in Canada. If you wish to renovate the look and feel of your bathroom by installing a new vanity, here at Golzar Home, we offer top-brand vanities.


How to install bath vanity?

Prepare to Install a Vanity, Remove the Existing Vanity or Sink, Locate the Wall Studs, Set and Fasten the Vanity, Fill the Side Gap, Fasten to the Sidewall, Install the Vanity Top, Install the Faucet and Connect Plumbing, Install the Backsplash, Caulk the Joints