Here's the open secret of professional painting: the paint is the cheap part. The cost lives in everything that happens before the roller touches the wall.
Where the cost actually is
Surface prep. Filling nail holes, repairing cracks, sanding, caulking gaps, spot-priming stains. On a well-kept newer home this is light. On an older home with settling cracks and decades of previous paint, it's the majority of the job — and it's the entire difference between a paint job that looks good for a month and one that looks good for years.
Drywall and plaster repair. Water stains that need sealing, texture that needs matching, plaster cracks that need proper repair rather than a smear of spackle. Texture matching in particular is skilled work; done badly, you see the patch every day for the rest of your time in the house.
Ceilings, trim, and doors. Walls are fast. Cutting clean lines at ceilings, painting trim and doors properly (often sprayed or brushed with enamel), and doing closets add the hours.
Height and furniture. Two-story entries, stairwells, and rooms full of furniture that needs moving and protecting all add time.
Why the low bid is low
Almost always: less prep. Two coats over unrepaired, unprimed walls looks fine on walkthrough day. The difference appears over the following year.
What keeps painting affordable
Empty rooms, sound walls, standard heights, and doing whole areas at once rather than room-by-room over months.
Real numbers come from seeing your actual walls. See the painting and drywall service page, our pricing page, the DIY vs. professional comparison, and our FAQ.