Need to know how much your painting will cost? Our easy to use painting cost tool will help you to get project cost estimates online. Simply enter your data and the calculator will produce an approximate quote. Please provide your details and submit the form to make an appointment with us and obtain a more accurate quote. Please note the calculator is limited and is simply an estimate and not an accurate cost. In order to get the interior square footage of your walls you need to measure each wall and multiply it by the height of the room.