How to Paint a Bath Vanity | A Finish That Lasts

A bath vanity transforms with about two days of prep, primer, and two thin finish coats.

Painting a bath vanity is one of the highest-impact upgrades you can make in a bathroom, and it costs a fraction of replacing the whole cabinet. The process is straightforward: remove the doors and hardware, clean and sand the surfaces, apply a bonding primer, then roll on two coats of finish paint. The key to a professional result is patience—rushing the prep or skipping the cure time is what turns a weekend project into a sticky, peeling regret.

What You’ll Need Before You Start

Gather your supplies first so you’re not stopping mid-project. You’ll need a degreasing cleaner, medium and fine sandpaper, wood filler, a bonding primer, finish paint, and quality applicators.

• Degreaser: trisodium phosphate (TSP) or a comparable cleaner
• Sandpaper: 150-grit for deglossing, 220-grit for smoothing
• Wood filler for dents, scratches, and old hinge holes
• Bonding primer—
• Finish paint:
• Roller and brush: a small roller for flat panels, a brush for edges and details

The Prep Work That Determines Everything

Prep is 80% of a good paint job, and it’s where most DIYers cut corners. Empty the vanity completely, then remove the doors, drawers, hinges, knobs, and pulls. Label each door and its hardware in a plastic bag so reassembly is painless.

Clean every surface with a damp cloth and degreaser, then rinse with fresh water afterward. Bathroom vanities accumulate soap scum, oils, and hair products that paint won’t stick to, and Once clean, sand the finished surfaces with 150-grit to remove the clear coat or gloss, then follow with 220-grit for a smooth base. Sand with the grain, and fill any holes or dents with wood filler, letting it dry per the package directions.

Tape off the walls, floor, and the underside of the countertop before you prime. Then apply a bonding primer, which grips slick surfaces that ordinary primer would slide off. After the primer dries, you’re ready for color.

Applying the Paint and Letting It Cure

Cut in the edges and details with a brush, then roll the flat surfaces for an even, stipple-free finish. Let the first coat dry fully before the second, and resist the urge to rush—the paint needs time to level before you add another layer.

When searching for a bath vanity that suits your style, remember that a fresh coat of paint can revive what you already own—but if the cabinet is structurally damaged, a new unit might be the smarter buy.

Once the final coat is dry, the hardest part begins: waiting. Leave the doors slightly open for a few days after rehanging them so they don’t stick to the frame. Bathroom humidity slows drying, and reassembling before full cure is one of the most common mistakes the sources call out.