Generally speaking, a gallon of paint will cover about 350 square feet. If this is the first time drywall is painted, it will soak up more paint. And remember to factor in whether your job will require one or two coats of paint. Dark and bright colors will require more coats of paint, as will painting a lighter color over an existing darker color. Divide the paintable wall surface by 350 to determine how many gallons of paint you will need to buy. If there’s an odd number with less than .5 leftover, round down, if it’s over .5 round up.
On average, expect to pay $0.60–$1.60 per square foot for exterior painting. The average for painting labor across the country is $30–$40 per hour before you pay for paint, painting supplies, location costs, and equipment. To get a very general estimate, though, painting contractors will take into account the square footage of your home and the number of stories and also factor in normal prep work.

It’ll cost you between $500 and $1,000 to paint the exterior yourself. Not including paint, it’ll cost you no more than $200 to $300 at a home improvement store like Home Depot, Lowes or Menards. You may end up spending more if you buy high-quality products from specialized shops. Professionals can get the same supplies for about half what you’ll pay. House Painting Denver Colorado
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. Do it correctly the first time or you’ll quickly end up spending more to fix peeling and chipping paint. Follow this process before starting on your home's exterior. Keep in mind that the process may vary based on your siding materials:
You can expect to pay between $700 to $3,000 to paint wood siding. You’ll end up spending $1 to $3 per square foot, but typically you’ll find this material is cheaper than brick or vinyl. Wood requires some type of sealant, be it paint, stain or oil. Lumber takes well to a wide variety of coverings giving you endless options for modern, contemporary or classic looks. Some things to consider when choosing wood: Home Painters Denver CO

Painting exterior windows depend on the size of the window and the number of panes. To calculate the price for windows larger than 15 sq. ft., add 1’ to each side of the window and then multiply width x length. Add two sq. ft. for each window pane for painting the mullions, muntins, and sash and then multiply your total sq. ft. by $84/100 sq. ft. So a 4’ x 4’ window with 4 panes will come to a total of 44 sq. ft. x $84/100 sq. ft. = $37.
Expect to pay between $600 to $3,500 or $1.25 to $3 per square foot to coat vinyl, with prices likely increasing for the finish. It is one of the more inexpensive siding materials to have repainted, especially with recent innovations in materials. Changing the finish on your siding is not recommended unless it's completely degraded and worn away by the weather. You can save nearly half the vinyl siding installation cost of $4 per square foot by painting rather than replacing. Before adding a new coat to vinyl siding, Denver House Painting

Power washing – $0.42–$1.40/sq. ft.. You might think you can save some money by power washing the exterior yourself, but homeowners can get a bit trigger-happy with a power washer in their hands. The pressure from the washer can take them unawares, breaking windows, leaking water into window frames and siding joints, and gouging wood. It’s probably wiser to use a hose and scrubbing brush. Rinse off any cleaning solutions thoroughly.
While vinyl siding salespeople claim it never needs to be painted, it does lose its color strength over time, and the degree of fading can vary depending on which sides get the most exposure to sunlight. Perhaps it still hasn’t faded, but you don’t like the color much. You can’t go any darker than its current color, though, because the siding is designed to absorb only so much heat, and a darker color could cause it to buckle. Vinyl paint is available in many colors. Brush painting and roll painting vinyl siding costs $43 per 100 sq. ft., and spray painting costs $34 per 100 sq. ft. Denver House Painting

Walls should be wet down before getting scrubbed, then washed with a gallon of water mixed with 1 cup chlorine bleach and 1 cup of either a concentrated, phosphate-free cleaner, such as a trisodium phosphate (TSP) substitute, or Jomax House Cleaner. Working in sections, from the bottom to the top, will avoid streaks. Be sure to rinse walls well before the solution dries. Wood siding and trim should be ready to paint after a day or two of dry weather. House Painting Denver Colorado
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