IF the average cost is $1700 to paint an interior, then that means the cost of paint is approx. $200 (12% of the job).  Or better said 5 gallons of paint (if the average cost is $40 retail).  The average room takes 1.5 gallons which will cover 3 average rooms.  Doesn't sound to average to anyone with knowledge of this industry or a average house.  You are misleading consumers and should do a better job in your research.  No wonder so pay people think prices to get work done by professionals is high.  Its not high, its actually average which is more like $3700.

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Another good rule of thumb is to test out colors on your home before you start. Once you’ve noted what others have done, and have visited a paint supply retailer to get some more ideas, test out a few potential colors on a nondescript part of your home just to make sure it’s what you expect. Colors that look fantastic on a tiny brochure can strike you a lot differently when they’re covering an area of a couple square feet. Try out a few options so you can compare them, and give yourself a few days to mull over your impressions. Taking this advice can save you the dilemma of what to do those 20 gallon buckets of “Green Myth” that you quickly realized looked more like split pea soup once you started slopping it on.
House painting is important for many reasons. Obviously, a good paint job beautifies and adds character and personality to your home. Just for that reason it’s important to take sufficient time planning which colors, shades, and paint styles you want to decorate your home with. But paint also serves as one of your home’s primary lines of defense against weather, insects and other damage, so it’s an important aspect of home maintenance to keep up on as well.

When selecting a color scheme for the home’s exterior homeowners can choose color options that will correct flaws that they may feel exist with their home and property.  Some examples include utilizing two shades of a single color to make a home appear appropriately sized when the home may be too large or too tall.  To accomplish this effect individuals will want to place the darker tone on the upper level of the home’s exterior.  Smaller windows can appear more proportionately sized by trimming them in a lighter tone of paint.  Darker colors make a space or feature appear smaller.  The same effect can be obtained for homes positioned further away from a curb.  By using lighter tones the home will not feel camouflaged.
Transitioning your painting business away from these mistakes can be difficult, but I guarantee you it’s worth it. You’ll look back at your business and say, ‘How did I even operate that way?’ Once you start doing things more efficiently and reaping the benefits, you’ll be UNABLE to return to your old ways of running things. Try eliminating just 2 of these mistakes and see what happens!
As you walk through your lighted rooms (preferably day light) see if the new coat has light spots showing the precious paint. This is call "bleeding through". This means that there's only one coat of paint or the paint was diluted or the trasition of colors were from light to dark (or the other way around) and primer was not use or the painter is inexperienced.
The speed with which a painter can complete the job will determine its final cost, but time is difficult to estimate. Some painters have more experience and cover a wall faster, but some are more methodical and take more time. Most painters should be able to cover about 100 to 120 square feet of flat surface in an hour, unless they are working on a very large wall. Wood or plaster might reduce that amount to 80 to 100 square feet. You should also consider the time required for a first coat to dry before a second coat may be applied. This will add time as well -- anywhere from one to 48 hours depending on the paint.

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