How to Replace a Bathroom Vanity

Understand the job

A vanity replacement crosses carpentry, plumbing, wall repair and finish work. The cabinet may hide damaged drywall, old flooring or plumbing that does not line up with the new unit.

What to inspect first

Measure width, depth, door swing, drain location, supply location, mirror and light clearance. Determine whether flooring continues underneath the existing cabinet.

Step-by-step approach

Shut off water, disconnect fixtures, remove the old unit without damaging plumbing, repair the wall or floor and secure the new vanity before reconnecting the sink.

Common warning signs

Leaking shutoff valves, corroded piping, wall damage or a heavy stone top may justify professional help.

Final checks

Level and secure the cabinet, seal the countertop as required, test the drain and supplies and inspect for leaks after several uses.

Tools and materials to plan for

The exact list depends on the product and site. Plan for accurate measuring tools, suitable personal protection, manufacturer-approved fasteners or fittings, cleanup supplies and a reliable way to verify the finished work.

Common mistakes to avoid

• Replacing parts before identifying the cause
• Skipping measurements or manufacturer instructions
• Using fasteners, sealants or materials not rated for the application
• Closing the repair before checking for hidden damage
• Failing to test the completed work before calling it finished

Should you DIY or hire help?

Straightforward inspection and maintenance may be reasonable for a careful homeowner. Hire qualified help when access is difficult, the repair crosses multiple trades, permits or licensing may apply, structural or electrical conditions are involved, or the problem keeps returning after a basic repair.