Exterior House Painting Cost Guide: Calculate Paint & Labor

Average Exterior Painting Cost

Painting the exterior of a typical 1,500–2,000 sq ft house costs $1,800–$4,500 when hiring a professional painter. This wide range reflects differences in paint quality, local labor rates, number of stories, siding type, and how much prep work is required. Budget $3.50–$7.00 per sq ft of paintable surface for a professional job including labor, materials, and prep.

How to Measure Exterior Surface Area

To estimate paint quantity for your home's exterior:

Measure the perimeter of your home (add all sides together in feet).
Multiply by the average wall height (typically 8–10 feet per story).
Subtract windows (approximately 15 sq ft each) and doors (approximately 20 sq ft each).
Add gable ends: measure width × height of each triangular gable and divide by 2.

Example: A 40×30 ft house with 9-foot walls, 8 windows, and 2 doors: Perimeter = 140 ft × 9 ft = 1,260 sq ft. Subtract 8 windows (120 sq ft) and 2 doors (40 sq ft) = 1,100 sq ft paintable wall area. Add gable ends (approximately 150 sq ft) = 1,250 sq ft total.

Paint Coverage on Exterior Surfaces

Exterior surfaces are rougher and more porous than interior walls, so coverage per gallon is lower:

Smooth stucco or fiber cement: 350–400 sq ft per gallon
Smooth wood siding: 300–350 sq ft per gallon
Lap or clapboard siding: 250–300 sq ft per gallon (more surface area due to overlaps)
Rough-sawn wood or T1-11: 150–250 sq ft per gallon — very porous surfaces eat paint
Brick (painted): 75–100 sq ft per gallon the first coat; 200–250 after priming

Always apply a minimum of 2 coats on exterior surfaces. On bare or previously unpainted wood, a primer coat is essential and should be calculated separately.

Choosing Exterior Paint

100% acrylic latex paint is the best choice for most climates. It expands and contracts with temperature swings, resists fading and mildew, and cleans up with water. Premium exterior paints from Benjamin Moore (Aura), Sherwin-Williams (Emerald), or PPG (Timeless) cost $60–$90/gallon but cover better and last longer than budget options. Budget for quality — a good exterior paint job should last 7–10 years.

Oil-based paint was once the standard but has largely been replaced by high-quality acrylics. Oil provides excellent adhesion on chalky or bare wood but takes longer to dry and requires solvent cleanup.

Prep Work: The Most Important Step

Professional painters spend 40–60% of the job on prep. Required prep steps include:

Pressure washing: Removes dirt, mildew, and chalking. Non-negotiable for adhesion.
Scraping and sanding: Remove loose or peeling paint.
Caulking: Seal gaps around windows, doors, trim, and siding joints.
Priming: Required on bare wood, repaired areas, and major color changes.

DIY vs. Professional

DIY exterior painting saves significantly on labor (roughly $1.50–$3.50/sqft), but it's physically demanding, requires scaffolding or a tall ladder for two-story homes, and mistakes in prep lead to peeling paint within a few years. If you can dedicate a week and have the right equipment, DIY can cut costs in half. Hire a professional for multi-story homes, complex trim work, or if your siding is in poor condition.

Frequently Asked Questions

How much does exterior painting cost for a 2,000 sq ft house?

Expect to pay $2,500–$6,000 for a professionally painted 2,000 sq ft house (exterior paintable area). The house size in square footage refers to living area, not paintable wall surface. Actual paintable surface on a 2,000 sq ft two-story home might be 1,500–2,000 sq ft of walls, at $3–$5/sqft labor plus materials.

How many gallons of paint to paint the exterior of a house?

A 1,500 sq ft home with 1,200 sq ft of paintable exterior surface needs about 4 gallons per coat on smooth siding. Two coats = 8 gallons for walls, plus 2–3 gallons for trim. Total: 10–12 gallons. Rough siding doubles paint consumption — estimate 16–20 gallons for 2 coats on rough surfaces.

How often should you paint the exterior of a house?

Quality exterior paint on properly prepped surfaces should last 7–10 years. Wood siding typically needs repainting every 5–7 years due to expansion and contraction. Stucco can go 10–15 years. Signs it's time to repaint: peeling or flaking paint, fading color, chalking (rubs off as powder), or visible wood grain through the paint.

Can I paint exterior in cold weather?

Most latex paints require temperatures above 50°F (some newer formulations can go down to 35°F) during application and for 24 hours after. Painting in cold weather causes paint to thicken, apply unevenly, and potentially not cure properly. Oil-based paints are slightly more tolerant of cold but still shouldn't be applied below 40°F. Plan exterior painting for spring through early fall.

What's better: spray or brush for exterior painting?

Professionals often use a combination: spray for large flat areas (siding), brush and roller for trim, doors, and detail work. Spraying is faster but requires extensive masking to protect windows, landscaping, and adjacent surfaces. For DIY, a brush and roller setup is safer, more controllable, and produces better penetration into wood grain. Either method works well with proper technique and quality paint.