Interior Painting Tips: How to Get a Perfect Finish Every Time

How to Get a Professional Interior Paint Finish

Whether you're redecorating a single room or giving your entire Kent home a fresh look, the quality of your paint finish makes an enormous difference to the final result. As professional decorators, we know that the secret to a perfect finish isn't the paint itself — it's the preparation.

Here are the techniques our team uses on every project, from Victorian terraces in Tunbridge Wells to modern homes in Sevenoaks.

Step 1: Surface Preparation (The Most Important Step)

Professional decorators spend 60–70% of their time on preparation. This is where the difference between a DIY finish and a professional one is most obvious.

Cleaning the Walls

Before anything else, clean the walls thoroughly:

Filling and Repairing

Sanding

Step 2: Choosing the Right Paint

Finish Types

Quality Matters

Premium paints (Farrow & Ball, Little Greene, Dulux Heritage) cost more per tin but:

For most rooms, the total paint cost difference between budget and premium is only £50–£100 — negligible compared to the time saved and finish achieved.

Step 3: Cutting In

Cutting in is the technique of painting clean lines along edges — where walls meet ceilings, around door frames, window frames, and light switches.

Professional Cutting-In Technique:

1. Use a 2-inch angled brush — The angle gives better control

2. Load the brush about one-third of the bristle length

3. Start 5mm from the edge and gently push towards it

4. Maintain a steady hand speed — Too fast causes drips; too slow causes buildup

5. Keep a wet edge — Complete each wall section before the paint dries

When to Use Masking Tape

Professional decorators rarely use masking tape on walls — it's slower than cutting in and can pull off fresh paint when removed. However, tape is useful for:

If you do use tape, remove it while the paint is still wet — pulling it off dry paint creates a ragged edge.

Step 4: Rolling Walls and Ceilings

Roller Selection

Rolling Technique

1. Load the roller evenly using a roller tray — roll back and forth to distribute paint

2. Apply in a large W or M pattern to spread paint across the area

3. Then roll vertically in parallel strokes to create an even finish

4. Maintain a wet edge — Don't let the paint dry before you've blended adjacent sections

5. Apply light pressure — Pressing hard squeezes paint out and creates track lines

How Many Coats?

Common Mistakes to Avoid

1. Skipping preparation — The single biggest cause of poor results

2. Not using primer — Bare plaster, new wood, and stain-prone areas need primer

3. Painting in poor light — You won't see missed areas until daylight

4. Overloading the brush — Causes drips and uneven coverage

5. Painting too quickly — Rushing creates roller marks and uneven coverage

6. Not maintaining a wet edge — Causes visible lap marks

7. Opening windows too early — Drafts cause uneven drying and surface defects

When to Hire a Professional

DIY painting is achievable for straightforward rooms, but consider professional decorators for:

View our decorating projects or read our reviews to see our standard of work across Tunbridge Wells, Sevenoaks, and Kent.

Call 07850 357962 or get a decorating quote.