cost to prime walls
(25 /sq ft when combined with drywalling). - to prime a newly drywalled 8' high 10' x 12' room, walls and ceiling, would cost $165 - to drywall, mud and prime an 8' high 10' x 12' room, walls and ceiling, would cost $995. Remove old drywall or lath & plaster (disposal & cleanup included) - $1.40/sq ft.