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Installing A New Bathroom Vanity

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New bathroom vanity installed
Aaron Stickley
Installing a new bathroom vanity can update the look of your bathroom significantly. With the many options available for both pre-made and made to order vanities to choose from you are sure to find one to fit your needs.

The installation of a new bathroom vanity is a fairly easy do-it-yourself project that can change the look of your bathroom with one weekend worth of work.

Here is how:

  1. First you will need to remove the existing vanity. Start by shutting off the water and removing the water lines. Then remove the trap from under the lavy sink. The old vanity will usually be screwed into the wall and you will need to remove the screws before you can remove it.

    If there are no anchoring screws visible it may be because the vanity is secured to the wall with caulking. If this is the case you can use a razor blade to cut the bead of caulking and then try pulling the vanity off the wall.

    When you have removed the anchoring screws and/or caulking carefully remove the old vanity from the wall to do the least amount of damage possible.

  2. Remove the new bathroom vanity from the packaging and position it where you want it. You will need to cut openings in the vanity cabinet to allow for the drain and water lines. When you have decided on the location of the vanity you will need to determine how the plumbing lines are going to line up.

    For the cleanest look you can measure how far the water and drain lines are from each wall. Then transfer the measurements to the vanity and make the cut marks on the cabinet. Reposition the cabinet where you want it and verify that the pipes line up to the cut marks. Make any necessary adjustments before cutting.

  3. Drill the pipe holes in the vanity and smooth away any sharp edges. Position the vanity back into place and make sure that it sits flush on the wall. Check the water and drain line alignments one more time before you level and anchor the vanity.

    Before anchoring the vanity check that it is level on from side to side and back to front. You may need to shim the back or sides of the cabinet so that it sits level. After it is shimmed and leveled you can use screws to anchor the vanity into the wall. Make sure that the screws are driven into studs in the wall for better support. Use a stud finder if you have difficulty finding studs just by knocking on the wall.

  4. Before you set the sink top on the vanity it is easiest to install the faucet and pop-up first, so you can access the top and bottom of the sink at the same time. When the faucet and pop-up are installed you can use caulking to secure the counter top to the vanity.

    Apply caulking to all four sides of the top rim of the vanity cabinet where the sink top will sit. The caulking will hold the sink top in place when it dries. Set the sink-top on the vanity and make sure it sits as close as possible to the walls.

  5. If your counter top has a detached back splash you will install that next. Apply a liberal bead of caulking in a zig-zag pattern to the back of the back splash. Position it where you want it and push it against the wall allowing the caulking to grip.

  6. At this point you can connect the drain trap and the water to the faucet. Turn the water on and check for leaks in the faucet and the trap.

  7. Finally trim the vanity and counter by applying caulking around sides of the back splash and let it dry so it can fully cure.
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