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Install a drop-in bathroom sink

  • Difficulty: hammer
    Close Difficulty
    Beginner Do-It-Yourselfer - Easy
    Intermediate Do-It-Yourselfer - Moderate
    Experienced Do-It-Yourselfer - Difficult
    Professional - Expert

The bathroom is a busy place, and the bathroom sink gets used several times a day. It therefore needs to be properly installed and watertight.

The following step-by-step project describes how to install a drop-in lavatory sink in a bathroom countertop. This type of installation is simple and requires only a few tools. Care should be taken when cutting the hole in the countertop – using a jigsaw requires concentration and a steady hand to cut the opening to exactly the right size. Fitting the mechanical (pop-up) plug also requires a certain amount of patience and dexterity.

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Tools and materials required

TOOLS

  • Pipe wrench
  • Pencil
  • Caulking gun
  • Hole cutter
  • Drill
  • Measuring tape
  • Jigsaw
  • Screwdriver

MATERIALS

  • Template
  • Slip nuts
  • Drop-in bathroom sink
  • Plumber's putty (or silicone caulk)
  • Gaskets
  • P-trap
  • Waste pipe
  • Masking tape

Before Assembly

INSTALLATION

Wear safety glasses when working under the sink or vanity unit.
Turn off the water supply by closing the shut-off valves under the sink. If there are no shut-offs, close your home's main water valve.
If the drain pipes under the sink are not exactly where you need them, use angle fittings (elbows) of different sizes to make the necessary connections.

Steps

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Drop-in lavatory sink
Install a drop-in bathroom sink