Priming is compulsory if you're painting over a darker color, or on a new drywall, but it's a good idea to include this step before any paint job. A primer is necessary because it blocks any stains from bleeding through. It is also important because it prevents any blisters and paint-peeling by improving paint adhesion. Lastly, primer is a good idea as it allows complete single-coat coverage of the walls. If you want a better appearance, you can tint your primer with the final color you intend on using on the walls. Most paints today come with inbuilt primers, but an old school primer is still a better option. Before you start painting, remember to use painter's tape to cover your door frames, window sills, and any switches on the wall.
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Repainting is key to maintaining exterior house paint. The material that your home is made of affects how often you should repaint. For instance, wood-paneled homes need to be repainted twice as often as those made of stucco. Environmental factors also play a role in how often you should repaint, since harsh climates can be hard on a home. As a general rule of thumb, homeowners should repaint their home every six to ten years.
One of the first considerations when it comes to interior house paint is the base. There are two schools of thought, each with their pros and cons. Some brands commonly sold to contractors for commercial projects are oil-based, meaning the chosen pigment is mixed with an oil derivative called alkyd. Oil-based paint provides thorough coverage, and the finished coat resists moisture well. However, oil-based paint releases a high level of volatile organic compounds (VOCs) as it dries, and it can only be removed from floors, brushes, and clothing with strong chemical paint thinners. In fact, many states have actually banned the use of oil-based paints because of their VOC levels and hazardous ingredients.

Scale has one of the biggest impacts on deciding whether to hire painting help or take matters into your own hands. If you want to paint your home, consider whether or not this is a realistic task to take on yourself. For instance, is your house multiple stories or a townhouse? Do you just want to paint the kitchen or the entire exterior? Once you factor in the time it takes to do the prep work and lay down multiple coats of paint, a DIY paint job can get complicated. If the house painting job is extensive, you may want to leave it to professionals.

Prime. Dark colors, stains (once sealed), and previously unpainted surfaces (drywall, spackle, etc.) will need a primer coat, usually white. NOTE: most paint stores & home improvement centers will now tint primer (at no charge) to match fairly close to the color of the finished coat, that way two coats of primer need not be applied.[6] Although not all surfaces need a prime coat, skip this step at your peril! Dark colors will likely show through the first -- or even the first couple-- topcoats of paint. Sealants and unpainted surfaces like spackle patches will absorb or repel moisture in a topcoat at a different level than the areas surrounding them. Applying a good primer coat will help even out these differences. Primer equalizes a wall to a uniform surface. It's like erasing a canvas before drawing a new picture. Although some will argue the point, you generally don't need to spend a great deal on primer or buy special primer. A cheap, 5 gallon (18.9 L) bucket of plain, flat white paint will usually do the trick and cover a large area. Give your primer at least 24 hours to dry (follow its instructions) before applying a topcoat.
Dirt and grime are bound to develop on exterior house paint after some time. Luckily, you can easily clean your home with a pressure washer. It’s recommended that you pressure wash your home about five or six years after the initial paint job. For areas like porches and overhangs, you should clean them more often. Taking a garden hose to these areas once a year should do the trick.
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.
Choose the best quality paint you can afford; it lasts longer. Experts estimate that the outside of a house should be painted every 5-7 years, but less-expensive paint may start peeling or fading in 4 years or less while really high-quality paint will hold up a bit longer. Better Homes & Gardens[1] describes and compares the different types of exterior paint while[2] reviews specific brands.
Painting is one of the quickest and easiest ways to give your home's interior a facelift with dramatic results. Fortunately, it doesn't have to be that difficult. Home improvement stores offer samples that you can take home. With these samples, you can try a few colors in large swaths on your wall to see the how the paint interacts with the room's natural light. Compare it against design elements like pillows or furniture to see whether it will work with your overall décor.
06/14/17: Renato completed an exterior painting project for our relatively large single family home in Stamford, CT last weekend. Project did not begin well especially with the prep, repair/carpentry work, but then Renato took full control and ensured that the work done was to our satisfaction. The final result is outstanding. Minor damage to window screens, gutters and plants. Ensure that your window screens, gutters, and shutters are numbered and stored indoors or if kept outdoor covered properly against the elements. The project can be extensively delayed due to rain and you may find yourself dealing with insects and/or flooding in basement and dirty/bent/ mismatched screens/gutters/shutters. Overall we had a good team working on our project and we are satisfied with the finished product. The house looks great!
Some paints are two-in-one paint and primer products, or so-called "self-priming paints." These paints are designed to seal and cover surfaces in one coat. But, here's the secret: though it's called a paint-and-primer-in-one product, there's actually no primer in the mix—what you're really working with is just a thicker paint that often doesn't perform as well as using separate primer and paint.

Two aesthetic things to consider when selecting a finish are how shiny you'd like the surface to be and whether or not you want to hide any imperfections on the surface to be painted. Generally, higher-gloss paint finishes reflect light better than lower-gloss finishes, like eggshell and matte. That makes them shiny, and also causes them to highlight flaws in walls and ceilings.
For walls, measure the linear feet of wall space (measuring along the baseboards) for the areas to be painted (using a tape measure, laser, or both). Then multiply this by the ceiling height (usually it is 7.5 or 8). If there are 2 story areas, measure them separately, and multiply them by double the regular wall height. Then multiply the total number by 2 (for 2 coats).

Even if you hire a professional, you may need to play a small role in your house painting process. This could be anything from moving your furniture to the center of the room to removing switch plates and outlet covers. Ask your painter how much prep work is expected of you before hiring. The amount of work you’re willing to do could help you narrow down the right painter for the job.
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.
Some paints are two-in-one paint and primer products, or so-called "self-priming paints." These paints are designed to seal and cover surfaces in one coat. But, here's the secret: though it's called a paint-and-primer-in-one product, there's actually no primer in the mix—what you're really working with is just a thicker paint that often doesn't perform as well as using separate primer and paint.
Practicing ladder safety is key. When using an extension ladder, always test that its resting at the right angle by putting your toes against the feet of the ladder and extend your arms outwards. At the proper angle, you should be able to rest your hands on the rung in front of you comfortably. When on a ladder, you should always keep your hands free and maintain a steady center of gravity.
After you have done the multiplication, subtract about 40 sq feet per window, and about 60 sq feet per door. Divide by 400 (interior paint covers 400 sq feet per gallon). The number that remains, is how many gallons you will need. If doing multiple wall colors, then you should do this process for each room (or sets of rooms) with a particular color. 

Paint can be expensive. Buying too much paint is particularly frustrating since paint stores won’t refund an already tinted gallon of paint. That’s why it’s recommended to first buy around 80% of the estimated paint you need and then purchase the remainder when you’re almost finished. Factors such as square footage, surface type, and quality of paint all play into how much paint you’ll need. Paint stores should be able to help you determine how much paint you need for a specific job. If you aren’t sure how much paint to buy, ask a salesperson for advice.
Flat, or matte finish on the no-shine end of the finish spectrum. A friend to walls that have something to hide, flat or matte paint (the terms are interchangeable) soaks up — rather than reflects — light, has the most pigment, and provides the most coverage. It's good for adults' bedrooms and other interior rooms that won't be roughed up by kids. That's because it's tough to clean without taking paint off.

The Coordinator. This person will care for the needs of the rest of the workforce, fetch drinks, make sandwiches, make runs to the store for last-minute needs, cook (or arrange) lunch and dinner, make phone calls, get directions, wash brushes, etc. Don't underestimate the need for this key person! When not gainfully employed, he or she can do some rolling.

Painters will agree that you should always aim to paint in the part of the year when it’s least likely to rain, has low humidity, and when the temperatures are above 50 F. Rain can wash wet latex paint off a wall, and temps that are too low can affect the way the paint sticks to the walls. Some painters will add additives to the paint if working in very high temperatures to slow down the drying time.
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.