This depends on the scale of the project and requirements like numbers of rooms/floors to be painted, the prep work involved and the touch up. Weather conditions need to be factored in as well. How safe is the painting service?
Interesting architectural forms (socles, bay windows, canopies) are best highlighted with bright colors on the background of a monophonic facade. And now let’s move on to more concrete recommendations for painting the facade of the house.

It’s important to note that when you calculate the square footage of your home, the amount of exterior siding you have to paint does not necessarily equal your interior square footage. Each wall of siding should be calculated separately, multiplying the height and width to find the square footage of that wall, and adding the walls together to get your total. Gables, dormers, and other features should be added into the total separately. Keep in mind that the exterior painting price per square foot can also change depending on the material of the siding you are painting and the complexity of the job.
The most important thing is to ask the company what the process is for completing the job and what materials they will use. Also, you want to make sure that the company asks you, the homeowner, how you envision the results to make sure they can match your expectations.