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Replacing a Bathroom Sink

This DIY Basic will provide tips on replacing a bathroom sink.

More in Bathroom

Step 1: Watch an Overview Video

Step 2: Gather Your Materials and Tools

Materials and Tools:

tape measurer
pipe wrench
pry bar
utility knife
adjustable wrench
soft towel
bathroom sink
supply lines
silicone caulk or plumber’s putty
plumber's tape

Step 3: Take Measurements

Start by measuring length, width, and depth of current sink. Double-check measurements or ask someone else to check measurements.

Measure width of countertop.

Measure distance from front of sink to edge of countertop and from back of sink to wall or backsplash.

Tip: Replacement sink should be same size or slightly larger than original sink.

Step 4: Remove the Old Sink

Turn off water supply at valves under sink or at main supply. Turn on faucets to make sure water is off.

Place bucket under trap and remove trap and tailpiece.

Working from below, loosen or break clips beneath old sink.

Using a utility knife, cut seal around old sink.

Pry loose old sink and remove it.

Step 5: Install the New Facuet and Drain Assembly

Thoroughly clean vanity surface.

Place new sink on soft towel and Install faucet.

Install and loosely tighten drain assembly.

Step 6: Install the Sink

Turn new sink upside-down on towel and run 1/4-inch bead of caulk under rim.

Lower sink into place, pressing down firmly and wiping off excess caulk.

Install clips.

Step 7: Connect the Supply Lines

Tighten drain assembly and connect supply lines to faucet tailpieces.

Connect stopper assembly.

Install tailpiece between trap and drain assembly.

Install trap.

Make sure all connections are tight.

Turn water back on and check for leaks. If leaks appear, tighten slip nuts carefully until water stops.