When determining the total cost of a home’s exterior project, you’ll want to include things like the trim, a garage, foundation, windows and doors. All work is calculated by square footage and sometimes by the linear foot, such as in the case of trim. Your contractor will give you a price for the entire project unless you specifically ask for each item separately.
Aside from the size and the material of your home, there are several factors that affect how much it costs to paint your home. If you paint the home yourself you’ll almost certainly spend less than you would if you hired professional painters. If you’re doing a cost comparison, remember to include the cost of painting equipment when you’re tallying the cost of a DIY paint job. You’ll need a ladder, brushes and buckets in addition to the paint itself. For an interior job, you’ll probably want tape and a drop cloth.
As you remove the loose paint from your home by sanding and scraping, you'll likely notice individual areas that have become damaged. The damage might be from weather wear and tear, or possibly from animal or insect activity. Regardless of the cause, this is the perfect time to make repairs. This Family Handyman article on exterior paint prep reviews a number of the possible types of damage and how to address them. Once the repairs are done, you can clean off the surface. Sanding dust and debris will come off with a quick wipe down or air spray. But if part of the home is especially dirty — especially from road dirt kicked up by traffic — you may need to scrub the siding, either by hand or with a power washer. If you do opt for power washing, be careful not to spray upward. Always direct the sprayer so that the force of the washer moves in the same direction as rainfall. Your siding was designed to shed rainfall, not protect from water coming at it from below. See How to Pressure Wash a House for more details.
To paint a large section without leaving lap marks, roll the nearly dry roller in different directions along the dry edge, feathering out the paint as you go. After completing the entire length of the wall or ceiling, move to the next section and paint over the feathered edges. For the second coat, apply the paint in the opposite direction. This crisscrossing paint application sharply reduces (if not eliminates) lap marks.
High-gloss paint is the most durable and easiest to clean of all paint sheens. It's ultra-shiny, light-reflective, and hard (think appliance-paint tough). High-glass paint has too much shine for interior walls; you'd find the reflections and drywall flaws distracting. It is a good choice for areas that sticky fingers touch, though, such as cabinets, trim, and doors. House Painting Thornton
Once you have the interior square footage calculated, experts say you’ll want to divide by 350. 350 square feet is the average coverage of a gallon of paint (though some say 250-400 square feet). The average coverage for a gallon of primer is 200 square feet. Your square footage divided by 350 square feet gets you the number of gallons of paint you’ll need. Square footage divided by 200 gets you the number of gallons of primer you’ll need. You can save money by ensuring you don’t buy too much paint. Thornton House Painting
Protect wood fences and deck with exterior stains and wood sealers. A few coats can keep your deck vibrant, healthy and looking great for years. Or, go for more of a restore by treating your deck to new colors or texture with deck paint. Remember, cleaning is an essential part of the project. It will stop premature peeling and make your exterior paint last longer. Pro tip: Take at least as much time to prep as you will for painting. Thornton House Painters
Once you have the approximate square footage that you’ll need to paint, remember that a gallon of paint generally covers between 250 and 400 square feet. You’ll need more if you’re painting a rough, porous material, or if you want to paint a dark house a much lighter color. Depending on your color choice, you may need a more expensive tinted primer to help with the color transition. Thornton House Painters