Hi Paul, square footage is a big factor, but to ball-park a 4bd 2 bath in poor condition, it could be anywhere from $1.50 to $2 per sq foot with heavy prep. If we say it is 2,500 sq ft. a good price could be between $3,500 – $5,000. That can seem expensive to some people, but again, heavy prep work changes everything. It also depends if you are doing the FULL interior; Walls, Base-boards, doors, is it coverable in 1 coat etc.
The truth is that there are a lot of things that can go wrong with a sloppy painting job and the crappy results will be instantly visible. Prepping the ceiling and walls as well as carefully repairing any damages is 50% of a successful job. However, cheap painters typically rush through this part of the project. Consequently, you see small holes in the walls, paint stains, bubbling paint and other ugly errors. House Painting Broomfield Colorado