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Bath & Faucets

How To Install A Bathroom Vanity


Most homeowners can do a bathroom remodel without professional help, short of replacing the bath tub or shower, all the elements in a bath room are easy to replace. Today we will discuss the replacement of a bathroom vanity.


Let’s Get Started:

Remove The Old Vanity:


1. Turn off the water supply under the sink and disconnect the hot and cold water supply lines to the faucet.

2. Remove the p-trap from the sink drain.

3. Using a putty knife break the seal between the vanity top and body.

4. Remove the vanity top by prying it up and off of the vanity.

5. Once the top is off, locate and remove any screws holding the vanity in place, these are usually at the top rear of the vanity along the area known as the mounting cleat.

6. When the vanity is free of the wall, lift it up and out of the room.


Next perform any necessary repairs to the walls and or floor prior to installing the new vanity, this is a good time to paint the bathroom, while the vanity is removed. Using a stud finder locate and mark the location of the wall studs. If the new vanity has legs, check to see if any adjustments to the flooring are necessary for the new vanity.


Installing the New Vanity:

1. Measure and note the location of the hot and cold water supply lines and the drain.

2. If the vanity has a solid back panel mark the panel where the supply lines and drain pipe will enter the vanity body. You may want to place the vanity close to the pipes to get an accurate measurement of the location of the holes.

3. Drill 2 inch holes in the vanity back panel for the water supply lines, and drill a three-inch hole for the drain line.

4. Set the vanity in place and verify the holes are in the correct positions, modify the openings if necessary. Finally make sure the vanity is properly located and is level.

5. Secure the vanity to the wall with drywall screws, make sure you drive the screws through the mounting cleat into the studs. Do Not over tighten the screws, use shims if necessary to make sure the vanity is square with the wall and does not bow in at the rear.

Next install the new faucet and sink drain before you install the vanity top. This a lot easier to do when the top is still off. Attach new flexible water supply lines to the faucet.

6. Test fit the top to assure all of the components are properly aligned.

7. Apply a bead of caulk along the top of the vanity, this will seal the opening and secure the top in place. Now carefully set the top in place, check the alignment with the back and sides of the vanity cabinet, the caulk will allow you some time for adjustments before it sets up.

8. Connect the hot and cold water supply lines to the shut offs, attach the p-trap to the sink drain and the soil pipe in the wall.

9. Turns on the water supply and check for leaks, run water in the sink and check for leaks in the drain line.

10. Clean off any excess caulk from the underside of the cabinet and make sure the drawers and doors operate properly.

  Now step back and behold the beautiful new vanity that you just installed!


Mike, The Home Depot Answer Man

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Posted 2016-09-08T17:55:35+0000  by Mike_HD_OC Mike_HD_OC