The average cost to paint kitchen walls is $150 to $250 since cabinets, backsplashes, and appliances occupy most of the wall space. Professional kitchen cabinet painting costs $30 to $60 per linear foot, or between $900 and $3,800 on average. Cost To Paint A Kitchen Area Average Cost Walls $150 – $250 Cabinets $900 – $3,800
The third line item is “Trim and Doors”- this is the hardest one to estimate there are so many variables. Condition of trim, how much trim, wainscot, crown molding, 2 doors or 46 doors. Is the trim already painted and needs a fresh coat. Or is your trim wood and needs to be primed and painted. So trim and doors can vary anywhere from $2.50- $10.00 per sq ft. $2.50 per square foot ranch home, white trim being re-painted white. $10.00 per square foot Craftsman home loaded with trim, priming and painting everything. Example (1500 sq ft home X $4.00 to paint trim and doors (average) = $6,000.00 this would include labor and materials.

The reason you have never seen anyone painting their house exterior in the dead of winter is that this is not the type of job that can be carried out at any season.
The cost to paint a house exterior yourself is $400 to $1,800 for supplies, equipment, and paint for a 1,500 square foot home, including renting a paint sprayer for up to 5 days. Costs to paint a house yourself Item Average cost (each) Brushes $2 – $15 Buckets (5-gallon) $6 – $8 Caulk (10 oz. tub) $6 – $9 Ladder $80 – $300 Painter's tape $3 – $10 Paint trays $2 – $5 ­­Paint roller kit $10 – $25 Plastic drop cloths $5 – $30 Sandpaper $5 – $15 Scrapers $6 – $20 Trisodium phosphate (TSP) $5 – $12 Paint sprayer / power roller rental (per day) $30 – $50 Scaffolding rental (per day) $50 – $100 Exterior paint (per gallon) $30 – $150 Primer (per gallon) $20 – $50