Bathroom Remodel · Intermediate
How to Install a Bathroom Vanity
Freestanding or wall-mount vanity replacement — with plumbing tie-ins.
- • Level
- • Drill/driver
- • Adjustable wrench
- • Stud finder
- • Caulk gun
- • Vanity + top
- • Faucet
- • P-trap kit
- • Supply lines
- • Silicone caulk
- • Wall anchors
Step-by-step
- 1
Turn off water and remove old vanity
Shut supply valves, disconnect P-trap and supplies, unscrew the old vanity from the wall.
- 2
Dry-fit new vanity
Position new vanity, level shim as needed. Mark stud locations behind the vanity for mounting screws.
- 3
Cut plumbing openings if needed
Trace supply and drain locations on the back of the vanity, cut clearance with a hole saw.
- 4
Anchor to studs
Drive 3" screws through the vanity back into studs. If no studs align, use toggle bolts rated for the vanity + top weight.
- 5
Install top, faucet and drain
Set the top in a bead of silicone. Install faucet and drain assembly BEFORE dropping the top if it's a solid piece (much easier).
- 6
Connect plumbing and caulk
Attach supply lines and P-trap. Run water 5 minutes, check for leaks. Caulk the top-to-wall joint with mildew-resistant silicone.
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Safety note: this guide is educational. Always follow local building codes, pull required permits, and hire a licensed pro for structural, electrical, gas or plumbing work when in doubt.
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