IF you want to have textured walls or ceilings, expect to pay at least 50% more for the job per square foot: $6-7.5 per sq.ft. Interior paint really varies in price and quality. Cheap paint by brands like Valspar can cost as little as $20-30 per gallon for flat/matte paint. High-end brands, such as Farrow and Ball, that have very high quality pigments that don't fade overtime as well as unique colors can cost as much as $100-120 per gallon. However, you can get very beautiful results and lasting quality with middle of road, trusted brands such as Sherwin Williams and Benjamin Moore (sold at your local Lowe's or Home Depot). Depending the type of paint, these brands cost $40-55 per gallon.
If your home or apartment is more than 30 years old (constructed prior to 1978), there is a high chance that the current paint on the walls and window/door trim contains lead. This is a serious health hazard, especially if there are small children living in the home. If you suspect that there may be lead paint on your walls, its best to test for it and remove it, before putting on new coats of paint. House Painting Broomfield Colorado