Painting contractors work in the property maintenance sector. Depending on their skills and resources, they might specialize in painting different types of buildings, including houses and apartments, or commercial properties, such as offices, factories or retail outlets. Some contractors work directly for property owners; others find work through real estate firms, rental agents and property maintenance companies.
Just as with exterior painting, picking the right color scheme for interior spaces requires a certain amount of imagination and creativity. Simply thinking about what color would look best on a wall isn’t enough to ensure a positive paint job. Virtually any color will look good on a surface as long as it is applied correctly, but choosing the right color involves looking at an interior space with a very critical eye.
I agree with JHs. If there is no new color on it at all, just talk to the painter about it, if it was an honest mistake (which can happen very easily while painting) your painter should have no problem fixing it. However, in my years of experience, it is not unusual for 2 coats of door paint (good quality) not to cover very well at all. I once painted a red door 7 times, plus a tinted prime coat before I found the door to be a solid color.