Interior painting pricing starts at about $2.00 per square foot for walls only, with higher pricing when ceilings, trim, and doors are included. Individual 12×12 rooms typically range from $450 to $1,200 with labor and materials. In the Tampa Bay market, exterior painting runs about $1.20 to $4.75 per square foot. Fish Hawk’s humidity routinely exceeds 75% from June through September, which extends dry time and increases the risk of adhesion issues on exterior doors. March and May are the least humid months at 70%, making them acceptable shoulder months; late fall through early spring is the most workable overall window for exterior door painting projects. For exterior doors, a satin or semi-gloss exterior-grade coating handles cleaning and daily handling better than flat finishes. For interior doors, eggshell and satin are the most common sheens, with semi-gloss on high-traffic or moisture-exposed doors.