The honest answer is "it depends," but that answer helps nobody, so here is what it actually depends on, what typical projects run, and how to keep the number down without getting a worse paint job.
The five things that move the price
One: size and ceiling height, because paint is priced in effort, not gallons. Two: scope, since walls only is one number and walls plus trim, doors, and ceilings is another. Three: wall condition, because cracks, nail holes, and water stains have to be repaired before paint, and older Central Connecticut plaster often needs real repair work. Four: color change, since going dark to light or light to dark can add a coat. Five: how full the rooms are, because furniture handling takes time we would rather spend painting.
Honest ballparks
A single average bedroom, walls only, typically lands in the several-hundred-dollar range. Add trim, doors, and the ceiling and it climbs from there. Living rooms, stairwells, and open two-story spaces run more because of height and cut lines. Whole-house interiors vary too widely for a blog number to be honest, which is exactly why the estimate is free: Dawid walks your rooms and gives you a straight number for your actual scope, not a formula.
Where cheap quotes cut corners
If one quote comes in far below the others, the difference is almost always hiding in the prep: no patching, no sanding, one coat instead of two, builder-grade paint, and nothing covered while they work. The job looks fine for a season and then every shortcut shows. Our quotes spell out the scope so you can compare like for like.
How to keep the price down, the right way
Empty the rooms as much as you can. Bundle spaces, because painting three rooms in one visit is cheaper than three separate visits. Be flexible on timing: winter is a great season for interior work, and our calendar is friendlier then. And use the offer that is already on this site: $250 off any project over $2,500.