A fresh coat of paint can completely change the feel of a room. But before you grab a roller and dive in, it’s worth learning from the most common DIY missteps. These small mistakes can turn a fun weekend project into a patch-up job. Here’s what to watch for and how to get it right the first time.

1. Not Cleaning the Walls

The Mistake:

Skipping or rushing through surface preparation can lead to uneven paint application, poor adhesion and visible imperfections.

The Fix:

Start by thoroughly cleaning the walls to remove dust, dirt and grease. Fill holes and cracks with spackling compound, sand smooth when dry and prime bare surfaces before painting to ensure a smooth and durable finish.

2. Not Using Painter’s Tape Correctly

The Mistake:

Improper application of painter’s tape can result in paint bleeding under the edges, ruining clean lines and requiring touch-ups.

The Fix:

Apply painter’s tape carefully along edges, pressing it firmly to create a seal. Remove the tape while the paint is still slightly wet to prevent it from peeling off the dried paint. For intricate areas, use a putty knife to ensure a tight seal.

5. Skipping Primer

The Mistake:

Going straight to paint without primer can lead to uneven color, patchy coverage or peeling later.

The Fix:

Primer creates a smooth, even base and helps paint stick better — especially on new drywall, patched areas or when covering dark or bold colors.

6. Not Testing the Color First

The Mistake:

That dreamy color looked perfect online or in the store, but once it’s on all four walls, it suddenly feels too bright, too dark or just ... wrong.

The Fix:

Paint a sample directly on your wall and live with it for a few days. See how it looks in morning light, evening shadows and everything in between. Lighting can completely change how a color looks in your space.