Painters usually find it hard to estimate the cost of prep work accurately. This is because the amount of work required varies greatly from job to job. The more the damage, the greater the amount of prep work required and hence, greater the cost. Dirty walls covered with grease have to be thoroughly cleaned for the new paint to adhere properly. Wood surfaces should be sanded 5 along the grain and dusted clean ($1.80 per square foot). Any cracks and holes in the drywall will also have to have to be repaired ($1.50 to $3.00 per square foot). Louisville House Painting
The Ceiling. For ceilings, flat is recommended, except semigloss or satin should be used in bathrooms with showers/tubs. Some customers opt to go with a different finish for ceilings in general, to create a specific design look, i.e. high gloss ceilings on dining room tray ceiling to make a statement, or eggshell ceilings throughout to look modern and make a statement. 
The average cost to paint the interior of a house or room is $1 to $3 per square foot. Painters charge $1,200 to $3,900 to paint the walls in a house interior, and the cost to paint a room is $350 to $850. Prices increase when including the ceilings, baseboards, and trim. Get free estimates from interior painters near you or view our cost guide below. Louisville Home Painting
Using a trompe l’oeil technique, a trick of the eye, artists and muralists can transform small, dark, boring, or otherwise challenging interior spaces with creative paint applications. Transforming a blank wall into a 3-D vision is something that requires talent and years of experience. At minimum, a qualified artist will charge $30 per square foot for this type of application. House Painters Louisville
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