How to Paint Woodwork and Trim for a Hard-Wearing Finish
Achieve a smooth, durable finish on skirting, architraves and doors without brush marks.

Woodwork endures more knocks, scuffs and cleaning than any other painted surface in the home, so it demands a tougher finish and a more careful approach than walls. The reward for that extra effort is trim that looks crisp and holds up for years.
Modern water-based trim paints have transformed this job, drying quickly with far less odour and yellowing than older solvent types, while still giving a wipeable, resilient surface.
What you will need
- Sugar soap
- Fine and medium sanding paper
- Wood primer
- Quality angled sash brush
- Decorator's tape
- Tack cloth
- Water-based satin or eggshell trim paint
Clean thoroughly
Wash all woodwork with a sugar soap solution to remove grease, polish and grime that would otherwise stop paint adhering. Rinse with clean water and let the surface dry completely. This step is non-negotiable on skirting near floors, where dust collects.
Sand to a key
Rub down the surface with medium paper to dull any existing gloss, then finish with fine paper for smoothness. The aim is a slightly roughened surface that gives the new paint something to grip. Wipe away all dust with a tack cloth before going further.
Prime bare or patchy areas
Apply a suitable wood primer to any bare timber, filled repairs or knots so the topcoat sits evenly. Knots in particular should be sealed to prevent resin bleeding through. Allow the primer to dry fully and give it a light rub with fine paper.
Mask adjoining surfaces
Tape along walls, floors and glass to protect them and to give yourself a confident, clean edge. Press the tape down firmly so no paint creeps underneath. Masking also lets you work more quickly without the fear of straying.
Apply thin, even coats
Load the brush lightly and lay the paint on with the grain, spreading it out before any runs can form. Thin coats are the secret to avoiding brush marks and sagging. Finish each section with long, light strokes in a single direction.
Recoat for depth and durability
Once the first coat is dry, lightly denib any raised fibres with very fine paper and wipe clean. Apply a second coat for full coverage and a harder-wearing surface. Remove the masking tape before the final coat fully cures to keep the lines sharp.