Generally, it will take a minimum of two gallons of paint to cover a room. At the highest end, paint will cost anywhere between $30 and $60 per gallon and come in three different finishes: flat, semi-gloss or high-gloss. Flat finishes are the least shiny and are best suited for areas requiring frequent cleaning. Semi-gloss finishes are a bit shiny but can also be easily cleaned. A high-gloss finish is stain-resistant and easy to clean. Traditionally, living rooms should be painted with a flat finish to allow the paint to stand out. Glossy finishes should be reserved for hallways, and a semi-gloss is best suited for trim. Invest in pre-primed paint whenever possible. This cuts down on time by combining the layering process. Almost any paint job will require a primer, which will cost anywhere from $7 to $15 per can. Primer helps the paint to stand out against the underlayer of paint it's covering, especially if the new paint is lighter than the old coat. You will need at least two cans of primer, if not more, to cover one wall. Here are some paint brands and their average price per gallon:
Watering down the paint 50%? It will not cover. I am a contract painter and found that most people that I make a contract with immediately try to change the deal and get more than they are paying for. Sometimes, I let them cheat me as they may have other work that I wish to do but other times I put my foot down. I try to get the client to look at what I have done each and everyday if I am going from room to room. I cannot do this If I spray the entire project at once. Even when I have them inspect my work, they often just do not tell the truth and wish to scam me the contractor for more and more while paying the same as the original contract. Most people have not a clue how much work is involved in painting a house and just assume that the painter rolls out the work with no prep, sealing off the place to protect things that are not painted. All of my contracts state that if anything is in the way like babies, dogs, cars, plants and furniture that I cannot proceed and that it is their responsibility to move this stuff. I always seem to be turned into a furniture mover and never get paid to wrench my back. Fact is most people try to rob the contractor and this article tries to make it seem that the contractor is robbing the homeowners. My sister is a prime example of this as she always goes for the lowest bid yet expects a world class job. This means if you pay $500 for a two day paint job do not expect the contractor to live at your home for two weeks and make only $500.

A good paintbrush is key to a professional-looking finish. "A quality brush costs $15 to $25, but you'll discover that pros aren't as talented as you thought," says Doherty. "The equipment has a lot to do with their success." Most of our pros prefer natural-bristle brushes for oil-based paints, but they recommend synthetics for all-around use. When choosing a brush, pay attention to the bristles. Synthetic brushes are made of nylon or polyester, or a combination of the two. Poly bristles are stiffer, which makes them good for exterior or textured work, but for fine interior work, Doherty uses softer nylon brushes. Look also for tapered bristles, which can help you work to an edge, and flagged tips, which help spread the finish smoothly and evenly. Brushes are available in 1- to 4-inch widths. Most painters keep an arsenal on hand to match the job. "Use common sense," says Maceyunas. "A smaller brush gives you more control, but no one wants to paint a door with a 1-inch-wide brush." Doherty recommends starting with a 2- or 2-1/2-inch sash brush. The angled brush makes it easier to cut to a line and puts more bristles on the work than a square-tipped brush.

House Interior Painting