Primer: While technically not paint or a finish, the use of primer is crucial in interior painting. Failing to use primer on a porous surface, such as wood or concrete, can lead to imperfect paint coatings that could end up peeling away from the walls. Primer is also a must if covering up a darker color, as it will take fewer layers to cover the old paint.
Painting contractors must also carry out administrative and marketing duties. They prepare final accounts for customers based on the original estimates and any additional work. They analyze the cost of the job compared with the estimate to calculate their profit. They market their business through activities such as setting up websites, asking customers for references or contacting property maintenance companies with details of their services.