Painting interior doors can transform the look of your home, adding freshness and style to your living space. However, achieving a professional-quality interior door painting finish requires careful preparation and technique. Whether you are a DIY enthusiast or hiring professional interior painters, these key tips will ensure a flawless finish.

1. Choose the Right Paint for Interior Doors

Selecting the best interior door paint is crucial for durability and aesthetics. Consider the following options:

• Semi-gloss or High-gloss Paint – These finishes are ideal as they are easy to clean and highly durable.
• Latex vs. Oil-based Paint – Latex paint is eco-friendly and quick-drying, while oil-based paint provides a smoother and harder finish.
• Premium Interior Door Paint Brands – Brands like Benjamin Moore, Sherwin-Williams, and Behr offer high-quality paints for interior door refinishing.

2. Prepare the Door Surface Properly

Proper preparation is key to achieving a smooth and long-lasting finish. Follow these steps:

• Clean the Door Thoroughly – Remove dirt, grease, and dust using a damp cloth and mild detergent.
• Remove Hardware – Take off doorknobs, hinges, and locks to ensure an even paint application.
• Sand the Surface – Lightly sand to remove imperfections and improve paint adhesion.
• Apply a High-Quality Primer – A primer prevents stains and improves paint adhesion, especially on previously painted or stained doors.

3. Select the Right Tools for Painting Interior Doors

Using the proper tools will ensure a professional finish:

• High-quality Paint Brushes – Use a 2.5-inch angled brush for edges and details.
• Foam Rollers – Ideal for creating a smooth and streak-free finish.
• Painter’s Tape – Protects surrounding areas and prevents accidental paint splatters.

4. Use the Best Painting Techniques

Applying paint correctly ensures a professional look:

• Start with the Edges – Paint the edges first before moving to the flat surfaces.
• Work in Sections – Divide the door into smaller sections and paint methodically.
• Apply Thin, Even Coats – Two or three light coats will give better coverage than one thick coat.
• Follow the Wood Grain – If your door has a wood grain texture, brush along the grain for a natural look.

5. Allow Proper Drying Time Between Coats

Letting each coat dry fully prevents smudging and uneven finishes.

• Latex paint requires about 4 hours between coats.
• Oil-based paint may take 24 hours to dry completely.
• Ventilation is Key – Open windows and use fans to speed up drying time and reduce fumes.

6. Consider the Door Type When Painting

Different types of interior doors require specific approaches:

• Flat Panel Doors – Easy to paint with a roller for a smooth finish.
• Paneled Doors – Requires attention to grooves and edges.
• French Doors – Use painter’s tape to protect glass panels.
• Hollow Core vs. Solid Wood Doors – Hollow core doors need lighter sanding and priming, while solid wood doors may require more prep work.