When we plan any building or renovation project, it is very important to know the cost of painting before starting work. If the painting cost is calculated wrongly, it can make the project more expensive, cause delay, and waste materials. Using accurate painting estimation helps to buy the right amount of paint, reduce extra cost, and complete the project on time. This is useful for both residential houses and commercial buildings, because every project needs careful planning. Accurate estimation also helps contractors and homeowners to make better decisions and avoid problems during the work. Proper planning with estimation makes the project smooth, organized, and saves time, money, and effort.