In a professional wall painting service, there are myriad beneficial things to be noted. Normally you may be known about the colors which are attractive and pleasant whereas a professional knows what color will give a sense of peace and how likely it is to hold up due to weather.
If there is any mould on the walls, use a wire brush to scrub it off with a bleach and water solution. Brush down the walls to remove any dust, dirt and cobwebs.

Cost. Price is naturally a concern. Getting the lowest price should not be your first or only consideration. You want to get someone with skill, experience, who is properly licensed and insured, aware of safety issues and is a good worker. That will not likely be the individual with the lowest bid. It does not need to be the highest bid, either. Just make sure not to hire on price. Look at the whole picture. Painting contractors operate on very tight profit margins. You will hear of homeowners who hired college students, unlicensed individuals and teachers out of work in the summer and were happy with the work. If the price seems too good to be true, however, it probably is. Arvada House Painters CO
Painted concrete surfaces can become slippery when wet. For areas that receive a lot of foot traffic, such as porches, steps, pool decks, and patios, a good option is to use an anti-slip concrete floor paint that contains fine aggregate, which gives the surface a light sand finish. If your paint is not slip-resistant, you can find anti-skid additives that can be mixed into the final coat of paint to improve traction.