You found the bathroom faucet of your dreams. It is a work of art and a life's work in the searching and finding. Well, maybe that is a little over the top, but it completely describes how thrilled you are. 

There is just one issue. This faucet fixture requires more than one hole in the vanity and more than one attachment for hot and cold water. Here is how your expert plumber is going to handle the faucet installation without replacing your bathroom vanity.

Turn off the Water and Remove the Old Fixture

First, your plumber will go under the sink and turn the hot and cold water valves off. This prevents a rushing fountain of water from springing up as the plumber removes the old fixture and exposes the single hole for your all-in-one faucet and spigot. Next up is cutting extra holes.

Cutting New Holes for the Handles of Your New Faucet Fixture

Depending on the material of your vanity, the new holes are cut in the following ways:

  • Diamond-hole saw drill bits cut marble and granite holes without marring the marble or granite.
  • Spade drill bits cut wood, laminate, and formica.
  • Ceramic or concrete drill bits are used for ceramic vanities and sinks. Gradual and graduated sizes of bits are used to slowly and carefully make the new holes without splitting, cracking, or breaking the ceramic.

Then the plumber measures the base components of the new fixture. These are the two faucet connections on the underside of the fixture. The diameter of these areas is necessary for determining how large a hole saw bit, spade bit, or concrete/ceramic drill bit is needed. You never want the new openings in your vanity to be too big or too small because then the fixture will not drop into position properly.

Clearly Marking the Areas on the Vanity to Be Drilled/Cut

The areas where the new holes are supposed to go are clearly marked. This helps the plumber place the right matching bit to the corresponding material right over the exact center or directly on top of the circles marked on the vanity. A few minutes of really loud cutting and/or grinding, and the new openings for your new fixture are now visible and ready.

Installing the Fixture

Now that there are enough holes in the vanity into which the new fixture can easily drop, the plumber drops in the fixture. Then he/she screws on the locking nuts from underneath to secure it and attaches the cold and hot water hoses. Finally, the plumber uses a waterproof caulk to seal around the base of the new faucets/fixture.