How to paint a room cleanly (no streaks, no drips)
The five-step sequence that produces professional-looking walls without spending all weekend on touch-ups.
Riley Brand
February 15, 2026
Prep is 70% of the job
Move furniture to the center, cover with plastic. Take down switch plates and outlet covers. Tape baseboards, ceiling line, door frames with painter's tape.
Wash walls if dusty. Patch nail holes with spackle. Sand patches smooth. The skipped-prep wall is the streaky wall.
Cut in, then roll
Use a 2-inch angled brush to paint a 3-inch border around all edges, corners, and trim. This is 'cutting in.'
Then roll the rest of the wall in W-patterns, smoothed by horizontal strokes. Roller marks vanish when you don't lift the roller during the smoothing pass.
Two coats, always
First coat is just coverage; it'll look streaky and patchy. That's normal. Wait 4 hours minimum.
Second coat evens everything out. Skipping it to 'save time' produces the visible-streak look. Always two coats.
People also ask
How much paint do I need?+
1 gallon covers ~350 sqft per coat. A 12x12 room with 8-foot ceilings = ~400 sqft of wall = 2 gallons for two coats.
Should I prime?+
Only if changing dramatically (dark to light) or painting over stains. Modern paint-and-primer-in-one handles most cases.
When can I peel the tape?+
While paint is still slightly wet — within an hour. Removing fully dry tape can pull off paint.