How to Paint Baseboards and Trim Like a Pro

Baseboards are the unsung heroes of a room's architecture, yet they endure the most abuse from vacuums, shoes, and furniture. When they are scuffed or yellowed, the entire room looks tired, regardless of how pristine your wall paint might be. Done well, crisp trim creates a definitive frame for your space, making wall colors pop and providing a sense of intentionality to the room's design. The secret to a finish that doesn't chip or peel isn't just the paint; it is the preparation of the surface. Most people make the mistake of rushing the sand-and-prime stage, leading to a finish that feels sticky or looks uneven. If you take the time to create a smooth, clean foundation, you only need to apply the paint once to achieve that factory-smooth look that lasts for years.

Seal Your Work Area. Remove furniture from the area and vacuum the baseboards thoroughly. Apply painter's tape to the floor and the wall directly above the trim, pressing the edges firmly to prevent paint bleed.
Sand Away the Gloss. Lightly sand all trim surfaces using 180-grit sandpaper to remove the gloss from old paint. Wipe away every speck of dust with a damp microfiber cloth or a tack cloth.
Caulk All Cracks. Apply a bead of painter's caulk to fill gaps where the trim meets the wall or at mitered corners. Smooth the caulk with a damp finger to create a seamless transition.
Prime for Perfect Adhesion. Apply a high-quality bonding primer to any raw wood or dark existing colors. Ensure the primer is applied evenly and allow it to dry completely based on the manufacturer's directions.
Lay On the First Coat. Use a 2-inch angled sash brush to apply trim-specific enamel paint. Work in long, continuous strokes, painting in the direction of the wood grain to minimize brush marks.
Perfect Your Final Edge. Once the first coat is dry to the touch, lightly buff any rough spots with 220-grit sandpaper and apply a second thin, even coat. Remove the painter's tape while the final coat is still slightly tacky.