Wall preparation: removing old paint and patching surfaces

Painting does not start with a roller in hand. It starts with proper surface preparation. Removing old paint is often necessary, especially in older homes where multiple layers of paint have built up over time. If the paint is peeling, cracking, or bubbling, it needs to be completely removed. This can be done using a putty knife, heat gun, or appropriate paint removal products.

Once the surface is clean, wall patching and skim coating come next. This step is used to level imperfections and create a smooth surface for the new paint. In most cases, walls are patched or skimmed in two layers, with light sanding after each one. This phase has a major impact on the final appearance. If you lack experience or proper tools, it is best to leave this work to a professional.

Priming walls: a step you should never skip

After patching and sanding, applying a wall primer is essential. Primer evens out surface absorption, improves paint adhesion, and prevents blotchy or uneven drying. This step is not optional. It is a standard part of professional interior painting.

Primer can be applied with a roller or brush, depending on the surface. Make sure the entire wall is covered evenly and allow sufficient drying time, at least 4 hours and ideally overnight. Skipping primer often results in poor paint coverage and reduced durability.

Choosing the right paint and applying it correctly

Only after thorough preparation should you move on to the final paint application, which defines the look and feel of the room. Color selection should take into account room size, natural light, and interior style. Light colors make small spaces feel larger, while darker shades create a cozy atmosphere but require more precision during application.

Painting is usually done in two thin coats. The first coat must dry completely, typically 4 to 6 hours, before the second coat is applied. Use high-quality rollers and brushes. For large surfaces, a short-nap roller works best, while corners and details require a smaller brush. Uneven application, drips, or poor coverage can significantly reduce the quality of the final result.

Decorative techniques such as sponge painting, color blending, or textured finishes require skill and experience. In these cases, hiring a professional painter is strongly recommended.

When and why it makes sense to hire a professional painter

Not every task should be done as a DIY project. Hiring a professional is often the better option in the following situations:

• large surface areas that would take several days to complete alone
  
• walls in poor condition, including moisture damage, cracks, or severe unevenness
  
• renovations in older homes that involve multiple types of repair work
  
• a requirement for a flawless finish without streaks, stains, or visible defects
  

Professional painting companies often provide additional services such as post-project cleanup, use of eco-friendly paints, or application of specialty coatings.

How much does it cost? Approximate pricing

Having a general idea of costs helps you decide which tasks to do yourself and which to outsource:

• removing old paint: starting at approximately $1.20 per m²
  
• wall patching or skim coating, one layer: starting at approximately $4.50 per m²
  
• primer application: starting at approximately $0.80 per m²
  
• painting with white paint, two coats: starting at approximately $1.90 per m²
  
• painting with colored paint, two coats: starting at approximately $2.50 per m²
  
• protecting furniture and floors: starting at approximately $0.50 per m²
  

Final pricing always depends on wall condition and project scope.

Proper preparation always pays off

Well-prepared walls and a clear, structured workflow are the foundation of a durable and visually pleasing paint job. Interior painting can completely transform a home, making it feel cleaner, brighter, and more comfortable without the need for major renovations.

If you are unsure which tasks you can handle yourself and which should be left to professionals, seeking expert advice is a smart move. Quality workmanship saves money in the long run, extends the life of the paint, and delivers results that continue to look good for years to come.