Top 6 Interior Painting Tips
Clean walls: Dust, dirt, and grease spots will ruin a paint job. Use water, a little mild dish-washing detergent and a cellulose sponge. Rinse walls with clean water to remove the soap residue.
Tape trim, window, and door-frames: Use painter's blue tape. It can be applied up to a week ahead. Remove tape immediately after painting, before the wall dries, so you don't peel off any paint with it.
Prime the walls: It's a common belief that walls that have been painted many times don't need to be primed. The truth, primer helps maximize the sheen and coverage of paint and gives the finish a more uniform appearance.
Brush where you can't roll: Use a two-inch angled brush to paint around trim and in the corners of walls, where your roller can't reach. Paint two to three inches from windows, doors, and moldings.
Use the W-overlap technique: Start in the corner of a wall and roll on a three-by-three-foot W-overlap pattern. Continue in sections until complete. Paint one wall at a time.
Painting trim: After the paint has completely dried, tape where the trim meets the wall. Paint the moldings and the door and window frames with a two-inch angled brush.