How to Avoid Brush Marks When Painting: Techniques for a Flawless Finish

Brush marks and streaks are the number one reason even expensive paint jobs can look sloppy. The good news: the right paint brush technique can turn a simple DIY project into a smooth, professional finish. Here’s how to avoid brush marks when painting, master pro tips, and understand when a brush actually beats a roller.

How to Avoid Brush Marks When Painting Walls and Doors

Even the best paint will leave streaks if applied incorrectly. Here’s what to do for a smooth paint finish:

• Load your brush properly. Dip the brush only one-third of the bristle length and tap off the excess on the side of the can.

• Maintain a “wet edge.” Work in sections about 3×3 feet, and overlap strokes before the paint begins to dry.

• Use long, continuous strokes. On doors, pull the brush from top to bottom of a panel in one smooth motion. On walls, brush from edge to edge or to the natural break line.

• Choose a quality brush. A 2–2.5" synthetic brush like Purdy Clearcut Glide or Wooster Silver Tip delivers even coverage and fewer streaks.

Pro tip: slightly thinning latex paint (according to the manufacturer’s instructions) helps reduce drag marks and improves leveling.

Pro Paint Brush Technique: Speed, Pressure, and Stretch

• Find the right speed: too fast and you’ll miss spots, too slow and you risk lap marks.

• Light pressure: hold the brush at a 45° angle, letting just the tips of the bristles touch the surface.

• Stretch technique: after laying down the paint, lightly “feather” it with the brush to even out the layer.

• Finish in one direction: always make the last stroke in the same direction to create a uniform sheen.

When a Brush Is Better Than a Roller

Rollers are great for covering large walls, but there are times when a brush gives better results:

• Cutting in edges: brushes make crisp lines along ceilings, trim, and corners — often without painter’s tape.

• Doors, cabinets, and furniture: a brush controls the thickness of the coat and avoids splatter.

• Detail work: stair balusters, baseboards, and decorative trim call for precision, not speed.

• Touch-ups: a brush blends in small repairs without leaving roller texture.

Best approach: use a brush for cutting in and detail work, then switch to a roller for wide, flat areas. This combination saves time and leaves a flawless finish.

Quick Guide for a Perfect Finish

• Start with edges and corners, holding the brush at a 45° angle

• Work in 3×3 foot sections to maintain a wet edge

• Make the final stroke in one direction for a smooth look

• Clean brushes right after use — warm water for latex, solvent for oil-based — comb the bristles and hang to dry

• Follow these steps, and your walls and doors will look like they were painted by a pro

Need Professional Help?

Our Tools and Hands team offers expert interior painting services — walls, trim, doors, and furniture — across Chicago and the northern suburbs. We use the right tools, protect your home, and leave behind a clean, smooth result.

Contact us today for a free estimate and enjoy a perfect paint job without the stress.