Painting is the trade where the difference between a great job and a bad one is almost entirely invisible on the day it's finished. Both look fine. One of them still looks fine in year eight; the other is chalking, peeling at the south elevation and bleeding tannin through the trim by the second summer.
That difference is prep and product — the two things every low bid quietly cuts. Henry built this page because he got three painting quotes that were $4,200, $7,900 and $11,500 for the same house, and not one of them explained why.
Below: what a real painting scope includes, what interior and exterior work costs nationally, how paint tiers actually differ, the warning signs your house needs paint now rather than next year, and a hiring checklist you can hand to every estimator who walks in. When you want local pricing, jump to your city.