Painting Trim, Baseboards & Crown Molding: A Professional Guide

Clean trim lines are one of the clearest signs of a professional paint job. When trim paint is sloppy - bleeding onto walls, leaving brush marks, or showing through multiple coats - it undermines an otherwise good paint job. Here's how we do it right.

Best Paint for Trim and Baseboards

Trim requires a harder, more scrubbable finish than walls. We use semi-gloss for most trim applications and gloss for front doors and cabinetry. Oil-based alkyd paint has historically been the professional choice for trim because it levels beautifully and dries to a very hard film. Waterborne alkyds (like Benjamin Moore Advance or Sherwin-Williams Emerald Urethane) now offer the same hardness and leveling with easier cleanup and lower VOC.

The Trim Painting Process

1. Fill nail holes with lightweight spackle or painter's putty
2. Sand smooth with 120-150 grit, then wipe clean
3. Caulk the seam between trim and wall (this is critical for a crisp line)
4. Prime bare wood or previously unpainted trim
5. Cut in with a quality 2" angled brush, keeping a wet edge
6. Apply 2 coats with light sanding between coats (220 grit)

Cutting In at the Wall/Trim Junction

The cleanest line at the wall-trim junction comes from caulking and then cutting in freehand with a good brush - not from tape. Painter's tape rarely produces a clean line on textured walls because the tape doesn't fully seal to the texture, allowing paint to bleed under. A skilled painter with a quality angled sash brush can cut a cleaner line freehand in half the time it takes to tape.

Baseboards vs. Crown Molding vs. Chair Rail

Trim painting is included in most of our interior painting packages. We can also paint trim-only for clients who want to refresh the woodwork without repainting walls. Get a free estimate today.