How to Paint a Room Like a Pro

Move furniture to the center and cover it with drop cloths. Remove switch plates, outlet covers, curtain rods, and anything hanging on the walls. Place all hardware and screws in a labeled ziplock bag so you can find them later. Lay canvas drop cloths on the floor along the walls — canvas absorbs drips better than plastic, which creates a slippery hazard.

Fill all nail holes and small dents with lightweight spackle using a putty knife. Let the spackle dry (it goes from pink to white if using DAP DryDex), then sand smooth with 150-grit sandpaper. Wipe the walls with a damp rag to remove dust, cobwebs, and grime. For kitchens, clean grease off walls with TSP or a degreaser — paint won't stick to grease.

Apply painter's tape along the ceiling line, baseboards, window trim, and door trim. Press the edge of the tape firmly with a putty knife or credit card to seal it — this prevents paint from bleeding underneath. Don't tape off areas you plan to cut in freehand (pros rarely tape the ceiling line, but beginners should). Remove the tape while the final coat is still slightly tacky for the cleanest edge.

Apply primer over spackled spots, bare drywall, or any stains (use a stain-blocking primer like Zinsser for water stains or marker). If you're making a dramatic color change (dark to light or light to dark), prime the entire wall with a tinted primer to reduce the number of topcoats needed. Let primer dry for the time specified on the label, usually 1-2 hours.

Dip your angled sash brush about 1 inch into the paint and tap off the excess on the side of the can (don't wipe it on the rim). Paint a 2-3 inch band along the ceiling line, corners, around trim, and along baseboards. Use long, smooth strokes and keep a wet edge. Work in 3-4 foot sections so the cut-in area is still wet when you roll, allowing the brush marks and roller texture to blend.

Pour paint into the tray until the reservoir is half full. Roll the roller cover through the paint, then roll it back and forth on the tray's ramp to distribute paint evenly. Apply paint to the wall in a large W or M pattern, then fill in the area with parallel overlapping strokes. Work in 3x3 foot sections, keeping a wet edge to prevent lap marks. Don't press too hard — let the roller do the work.

Let the first coat dry completely (2-4 hours for latex paint). Inspect for thin spots, holidays (missed areas), and drips. Sand any drips smooth with fine sandpaper. Apply the second coat using the same cut-in-then-roll technique. The second coat should go on more smoothly and evenly since the first coat provides a uniform base. Two coats is the minimum for any professional-looking result.

Remove painter's tape while the final coat is still slightly tacky (about 30-60 minutes after rolling). Pull the tape back on itself at a 45-degree angle for the cleanest line. If paint has dried over the tape edge, score along the tape line with a utility knife before pulling. Reinstall outlet covers, switch plates, curtain rods, and any wall hardware once the paint is fully dry (usually 24 hours).