If you want to estimate the total cost of painting your home, it's advisable to consider some elements, such as the condition of the walls, the paints, the techniques to be used, and the timing. First, you need to check for imperfections on the walls like mold, infiltrations, cracks, or air bubbles.

Mold is the worst enemy because to eradicate it, it's not enough to clean the surface with detergents or paint over it; you need to treat the problem correctly before starting the painting. Such interventions affect the painting costs. The second aspect that can modify the painting price is the type of paint and the techniques used. For example, tempera paint costs less compared to enamel, or techniques like spatula and Venetian plaster require more work from the professional and, consequently, a higher estimate.

The third element to consider is the timing and duration of the intervention, which varies depending on the temperature and the time of the year when painting is done. Usually, painting is done in spring or summer because it's easy to ventilate the house and let the paint dry. If you're forced to paint during winter, you'll need to pay attention to the temperature inside the house as you'll need to heat the rooms significantly before starting the work and ventilate them as much as possible once the work is finished.