One of the most essential pieces of furniture in your house is the bathroom vanity. 

Every bathroom design must include a vanity since it serves both practical and aesthetically pleasing functions. Whether building a new bathroom from scratch or remodeling an old one, installing a bathroom vanity takes meticulous preparation and execution.

As you prepare for the day and unwind at night in your bathroom, you must pick a vanity you enjoy that is fitted perfectly.

This comprehensive blog post will take you step-by-step through installing a 48-inch and double bathroom vanity, from initial setup to finishing touches.

Let’s get started now.

Step-by-step Guide On How to Install a Bathroom Vanity

Here is all you need to know if you plan to install a new bathroom vanity yourself.

Step 1: Pick The Right Vanity-

Choosing the ideal vanity is the first step you take when remodeling your bathroom. There are many things to consider, including your bathroom’s size, design, and budgetary constraints. You should pick a manageable and easy vanity if your bathroom is small. Due to its modest footprint, a pedestal vanity is a fantastic choice for bathrooms with limited space. A double bathroom vanity is an option if your bathroom is bigger.

Choose the one according to the space available in your bathroom.

Step 2: Planning and Preparation-

Having a strategy in place is crucial before you start the installation procedure. You must consider the following elements:

  • Space: To ensure the vanity will fit properly in your bathroom, measure the available space. You’ll need at least 49 inches of wall space to accommodate a 48 inch vanity effectively.
  • Plumbing: Make a note of the drains and connections that are currently present. Ensure that the vanity you select has apertures or cutouts for plumbing equipment.
  • Style: Pick a vanity that fits your storage requirements and matches the design of your bathroom. Choose a double bathroom vanity design that offers enough storage and counter space for two users.
  • Materials and features:  Consider the material, finishes, and features you want for your vanity before choosing parts. Think about things like the type of sink, the countertop material, and the drawer and cabinet storage possibilities.

Step 3: Gather The Tools and Materials-

Get the required equipment and materials together before you start the installation process:

  • 48 bathroom vanity or any other vanity you want to install
  • Screwdriver
  • Wrench
  • Measuring Tape
  • Sizing Caulk
  • Shims
  • Wall Fasteners
  • Mounting Brackets (if they don’t come with vanity)

Or else, you can ask our experts to install the perfect vanity in your bathroom. 

Step 4: Remove The Old Vanity-

Start by shutting off the water supply and removing the plumbing connections if replacing an existing vanity. Remove the outdated vanity and any wall-mounted fittings with care. Before continuing, patch up the wall as necessary.

Step 5: Set Up The Vanity-

  • Setting up: Put the vanity in its proper location and make sure it’s leveled up. Shims can be used to modify the vanity’s height and guarantee its stability. 
  • Wall mounting:  If your vanity has mounting brackets for the wall, screw the brackets to the rear of the vanity and the wall studs. This adds to the stability and keeps the vanity from falling over.
  • Connect plumbing: Set up the faucet and drain assembly according to the directions provided by the maker. Connect the plumbing’s drain and water supply lines.
  • Caulking: Using silicone caulk to seal the joints where the vanity joins the wall, and the countertop meets the sink. This helps stop the growth of mold and water damage.

Step 6: Install The Sink-

To complete the installation, attach the sink after installing the countertop. The sink should have its own set of installation instructions. If the sink is not secured to the countertop, you must use a plumber’s putty to seal it. You will also have to connect the sink to the water supply and drain.

Step 7: Finalizing The Touches-

  • Countertop installation: Carefully set the countertop on the vanity base if it still needs to be fastened. Before fastening it in place, make sure it is level and in the middle.
  • Sink installation: Follow the manufacturer’s directions for installing a sink into a countertop cutout. Use silicone caulk to seal the edges.
  • Alignment of doors and drawers: Aligning the drawers and cabinet doors will ensure smooth functioning and proper alignment.
  • Final verifications: Verify all connections once more to make sure the plumbing is leak-free. Check the drain and faucet to make sure they work properly.
  • Hardware installation: Install the hardware by screwing handles or knobs onto the cabinet doors and drawers.

Step 8: Consideration for Double Bathroom Vanities-

Similar procedures must be followed when installing a double bathroom vanity, with a few more factors to take into account:

  • Centerline measurement: Measure the centerline between the two sinks. This will enable you to evenly space the vanity and set it in the right place.
  • Plumbing layout: To accommodate two sinks, carefully plan the plumbing arrangement. Make sure the water supply and drain lines have adequate room.
  • Electrical Outlets: Make sure all outlets are reachable when installing a double vanity.

Have fun with your new vanity! Once set up, your bathroom will be a more enjoyable space for getting ready in the morning and relaxing at night.


Installing a bathroom vanity, whether a 48-inch or double-in size, can completely change how your bathroom looks and functions. A good installation depends on careful planning, accurate measurements, and attention to detail. You can enjoy a fashionable and practical bathroom that matches your needs by following the instructions provided in this blog or by contacting our experts.

1 Comment
  • Reply
    August 23, 2023, 4:31 am

    This step-by-step guide on installing a bathroom vanity is incredibly helpful and detailed! I’m currently planning a bathroom renovation, and your tips on selecting the right vanity, preparing the space, and ensuring proper plumbing connections are invaluable. The emphasis on aligning doors, drawers, and final verifications shows your attention to quality. Can’t wait to apply these insights to create a stylish and functional bathroom space. Thanks for sharing this comprehensive guide!

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