You can save a bundle by doing the labor yourself. The biggest DIY expense is paint. Other expenses include buying or renting supplies and equipment, like caulk, primer, brushes, rollers, tarps and ladders or scaffolding. Freeman advises applying paint with brushes, not a sprayer. “If you overspray all the window frames and overspray your shingles and your sidewalks and the brick on the front of the house, you do damage that is not easily fixed,” he says.
Deciding which paint to use has gotten much easier now that acrylic latexes have pushed oil-based paints almost to extinction. The acrylics offer superior performance (they don't harden with age, the way oils do, so they move and breathe without blistering), they don't mildew as readily, and they emit fewer VOCs, so they comply with new air-quality regulations. They also work over both oil- and water-based primers.
A professional painter will help you select an exterior paint designed for long-lasting results, superior protection, and ample coverage. Higher quality paint requires fewer coats and lasts far longer, saving you money down the road. Oil or latex paints in a flat/matte or satin finish make excellent choices for the exterior of your home. These paints will endure extreme weather conditions, can be customized to your specific climate, and are ideal for painting siding.
Whether you decide to do the preparation work yourself or have a professional do it as part of your project, proper preparation makes all the difference in creating a smooth and lasting finish. Sure, it adds to your the total time and money spent on your project, but it's certainly worth doing the job right the first time. Otherwise, you'll spend additional time and money down the line on maintenance and repairs. To ensure proper preparation, follow this process before painting your home's exterior (keeping in mind that the process may vary based on exterior materials):
Depending on just how dirty the outside of your house is and on the house's size, there are two ways to approach this job. If you live in an average-size house, use a garden hose with a carwash brush attachment to bathe the big areas. For caked-on dirt, use a scrub brush or a sponge and a pail of warm water with a good, strong household detergent in it. Work from the top down, and rinse all areas where you scrubbed with water.