How to Install a Cultured Marble Vanity Top

Lead Image
  • 3-4 hours
  • Intermediate
  • 200-500
What You'll Need
Measuring tape
Cultured marble countertop
Carpenters level
Silicone caulk adhesive
Belt sander
Clean cloth
Rubbing alcohol

For those who want the fashion and polish of marble on their vanity or countertop, a cultured marble vanity top could very well be the answer they seek. This type of vanity top is easy on the budget, easy to install, and is virtually free of maintenance. All you'll need to install it are a few simple tools and materials and some installation information.

Step 1 - Preparing for Your New Vanity Top

Before you purchase your vanity top and install it, there are a few things you'll need to know. First, be sure the new top will fit. Measure the cabinet or base you wish to install it on, both length and width. Then decide on the type of countertop you'll want. Will you want a sink in it? Will you want the sink to be pre-fabricated with the vanity top, or will you want to install a sink yourself? Compare patterns and colors that you'll need to match the d├ęcor in the room where your vanity top will be in use.

Step 2 - Removing Your Old Vanity Top

Before installing your new vanity top you'll need to remove the old one. If it is a solid piece that is light enough for 1 or 2 people to carry, disconnect it from its base and remove it. If the old countertop includes a sink, and if you won't need the sink for your new vanity top, disconnect its plumbing fixtures and remove it. If the vanity top is heavy and will need to be carried out in pieces, break it up. If you need to repair or adjust the size of your base before installing your new vanity top on it, this will be the time to do that.

Step 3 - Purchasing Your Cultured Marble Vanity Top

Purchase your new marble top from a retailer in your community who you believe provides quality merchandise, competitive pricing, and who will deliver your purchased vanity top. Be sure his quoted price includes delivery.

Step 4 - Placing Your New Countertop

Move your new countertop into place on top of your cabinet or base. Do not apply glue yet. Make sure that the new countertop is a good fit and that it sits tightly into place. If it doesn't, make needed adjustments to the cabinet or to the counter top. Be sure all connecting edges are smooth and even. Otherwise, you may have a problem with the glue adhering properly.

Step 5 - Installing Your Backsplash

If you'll be using a new backsplash, install it now. Check to be sure it fits snugly against the wall. Use your level to ensure that the backsplash is installed level.

Step 6 - Gluing Your Countertop

Use rubbing alcohol on a clean cloth to wipe off all dust on the countertop surface that will be glued to the base. Apply a clear silicone caulk adhesive to the top surface of the cabinet base that will be glued to the countertop, then remove any excess adhesive using the same cloth and alcohol.