When you go to the home improvement store, find out how much 12 gallons of the paint you want would cost, and that will help you determine your cost. Maybe it's a low-quality paint that costs $30, in which case you're looking at about $360 for paint. If you choose high-quality paint that costs around $70, your total paint cost could be closer to $840. Professionals also recommend that you add an extra 10 or 20 percent to your total square footage, depending on the type of siding you have. Some textures require extra paint because they're rough. This is especially true with wood and stucco siding.
Painting interior walls is a task better accomplished with foam rollers, because they are easy to use and can evenly cover large surface areas quickly. Foam rollers and brushes should never be overloaded with paint, as it can create drips, uneven coverage and can take longer to dry. It’s easy to get frustrated when the paint is fresh and does not look like a photo from the paint catalog, but remember: that’s something that usually happens after the second coat dries.
Calculate your costs.Having an idea of the cost of paint you need to purchase will help obtain quotes from a contractor. “Paint coverage is based on how many square feet of surface one gallon will cover,” says Bunting. “Most paints will cover approximately 400 square feet. Tally this by multiplying in feet the wall’s height by its width, minus windows and doors.” Determine how much paint is needed to complete the project. “To calculate the cost of a project, factor in the day rates, the size of the property, any architectural features, and the paint finish needed,” says Rance.