How to Replace a Bathroom Vanity

By Gene and Katie Hamilton

Tools Required
  • Adjustable wrench
  • Slip-joint pliers
  • Carpenter's level
  • Electric drill and bits
  • Tape measure
  • Electronic stud finder
  • Hammer
  • Caulk gun
  • Hacksaw
  • Screwdrivers
  • Putty knife
Materials Required
  • Vanity cabinet
  • Countertop with sink
  • Faucet assembly
  • Drywall screws
  • Shims
  • Acrylic caulk
  • Plumber's putty

Before You Begin

Here are the steps involved to replace a bathroom vanity but before you start, consider the pros and cons of doing it yourself. If you're looking for a contractor to do the job, click here at Home Advisor a free service that matches homeowners with prescreened qualified Bathroom Contractors.

  • Step 1 : Remove the old unit

    Remove old vanity Remove the existing vanity and clean the wall and floor. If you're replacing the floor, do it before installing the new vanity.Turn off the water at the valves under the sink and use an adjustable wrench to unscrew the nuts that secure the hot and cold supply tubes to the shutoff valves.

    Turn off water Then use slip-joint pliers to loosen the slip nut that holds the drain tailpiece to the p-trap. Loosen the nut that holds the drain arm to the stub-out at the wall.

    Use a putty knife to break any caulk seals between the counter top and base unit. Remove any screws that may hold the countertop to the base from the underside of the counter. Remove the base unit from the wall by loosening the screws holding it to the wall. Then remove it from the room so it's not in the way.

  • Step 2 : Prepare the new unit and wall

    If the new vanity has drawers, remove them and unscrew the door hinges and remove the doors for easier access. Measure the height of the cabinet and then use a level to draw a horizontal line on the wall at this height. Use the level to draw a vertical layout line where the edge of the cabinet will be located.

  • Step 3 : Level the vanity

    Level new vanity

    Carefully slide the new vanity in place and align it with the horizontal and vertical lines on the wall. Use tapered wood shims driven between the floor and the base to adjust and level the vanity. You may have to insert shins behind the vanity if the wall is out of plumb.

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