Most homeowners pay $2.50 to $7 per sq ft ($27 to $75 per sq m) for professional exterior painting, with clean fiber cement near the low end and peeling wood siding near the high end because prep drives labor. Your siding substrate plus its condition sets the final rate more than total house size. Exterior paint cost per square foot is a unit budget rate that rolls paint materials, surface prep, labor, and access into one comparable number per painted square foot.
How much exterior paint costs by siding type
Exterior repaint cost averages $2.50 to $7 per sq ft ($27 to $75 per sq m) of painted surface when normal prep, one primer spot coat, and two finish coats are included. Vinyl in good shape often lands at $2.50 to $4 per sq ft, fiber cement at $3 to $5, stucco at $3.50 to $6, and wood siding or cedar at $3.50 to $7 because joints, knots, and failed edges need more hand work. Brick that has never been painted usually costs more on the first round, often $4 to $7 per sq ft, since porous masonry drinks primer and needs careful masking around mortar.
Those numbers cover painted wall area, not floor area. A 1,500 sq ft (139 sq m) ranch might have 1,300 to 1,800 sq ft (121 to 167 sq m) of paintable wall surface once gables, bump outs, and garage walls are added and windows are subtracted. A two story 2,000 sq ft (186 sq m) home often shows 2,200 to 3,000 sq ft (204 to 279 sq m) of wall surface because height adds access time. If you are comparing bids, ask each painter whether the square footage means wall area or floor area, and whether fascia and soffit plus shutters and doors are included.
Trim changes math fast. Crews often price body siding per square foot, then price trim by trim linear feet because corners, casings, and frieze boards take slow brush time. Learning your house siding types helps here, since lap profile, texture, and joint count decide how much paint and labor each wall will absorb. Smooth panels go quicker. Heavy cedar shake, rough sawn wood, and porous stucco soak up extra gallons.
What actually drives prep cost on a repaint
Prep labor on an exterior repaint runs $1 to $3.50 per sq ft ($11 to $38 per sq m) of wall area when peeling, bare wood, and failed caulk require hand scraping, sanding, and spot priming. Paint itself is only part of the bill. The mechanism is simple: loose coating must be removed, edges must be feathered smooth, raw spots must be sealed, and gaps must be closed so the new film can bond and stretch as a single skin.
A house with light chalking and sound paint might need only pressure washing, a mildew rinse, and a full day of touch up. A sun beaten cedar elevation with alligatoring paint needs scraping and sanding down to firm edges, sometimes to bare wood on sills and lower courses where splashback hits. That second house can take three times the prep hours for the same wall area. Moisture is the quiet divider. Walls shaded by trees or facing sprinklers stay damp longer, primer adhesion drops, and blisters return sooner.
Caulk and masonry joints matter too. Pros cut out split sealant, install caulk and backer rod in wide joints, and leave weep gaps open at flashing lines so trapped water can escape. IRC Section R703 calls for weather protection that sheds water outward, so paint should never bridge flashing gaps or seal the bottom edge of lap siding. Good prep also protects you. Tall gables need secure ladder and scaffold setup on level footing, and homes built before 1978 may contain lead paint, so test before sanding and consult a licensed professional for safe handling.
Which paint system fits your siding and climate
Exterior paint systems for siding cost $0.60 to $2.20 per sq ft ($6.50 to $23.70 per sq m) in materials alone when primer plus two topcoats at label spread rates are included. Labor, prep, and access sit on top of that material rate. The table below compares common systems by material cost per painted square foot and typical repaint cycle in a temperate climate with normal sun and rain exposure.
| Paint system | Best siding match | Materials per sq ft | Typical repaint cycle |
|---|---|---|---|
| 100 percent acrylic latex, two coats | Fiber cement, vinyl, primed wood | $0.60 to $1.10 | 7 to 12 years |
| Acrylic latex over bonding primer | Chalky vinyl, glossy old paint | $0.80 to $1.30 | 6 to 10 years |
| Oil primer plus acrylic topcoats | Weathered cedar, tannin prone wood | $0.90 to $1.50 | 7 to 12 years |
| Elastomeric high build coating | Hairline cracked stucco, masonry | $1.20 to $2.20 | 8 to 15 years |
| Mineral silicate coating | Unpainted lime stucco, mineral masonry | $1.10 to $2.00 | 10 to 15 years |
Most siding repaints use acrylic latex because it breathes, flexes with seasonal movement, and cleans up with soap and water. On stucco with fine cracks, an elastomeric coating can bridge hairline movement and slow wind driven rain entry, though it applies thicker and costs more per gallon. For red cedar or redwood with tannin bleed, painters often spot prime with oil-based primer to lock stains, then follow with acrylic topcoats for color hold. Your vinyl vs fiber cement siding choice affects this too, since vinyl prefers light reflective colors that reduce heat distortion while fiber cement accepts a wider color range.
Hiring a pro versus DIY and bidding mistakes
Hired exterior crews charge $2.50 to $7 per sq ft ($27 to $75 per sq m) installed when prep, paint, trim work, and cleanup are included in the written scope. Use that installed rate to compare bids apples to apples. The most common bidding mistake is accepting a lump sum with no prep description, no coat count, and no product line. Ask for wall area measured, prep method by elevation, primer type, finish coats, and how sprayer versus brush and roller work will be split.
Application method affects price and finish. Spraying covers lap siding fast, then crews should back roll or back brush to push paint into pores and achieve specified mil thickness. Trim, doors, and windows deserve slower brush work for sharp lines. Watch for vague allowances such as paint as needed, carpentry if needed, or extra prep billed hourly with no cap. A clear bid names the peeling areas to scrape, the caulk scope, the gallons expected, and the plan for moisture vapor trouble spots like laundry vents, hose bibs, and low splash zones.
DIY can work for a one story cottage with sound paint and easy footing. Budget for washer rental, drop cloths, masking film, brushes, rollers, an extension pole, and safe ladder gear, plus extra days for weather delays. Skip DIY on loose tall ladders, steep roofline peaks, or flaking pre 1978 coatings that may contain lead. If rot, soft window sills, or swollen panels show up, pause and read about siding repair vs replacement before coating over damage that paint cannot fix.
How long exterior paint lasts and next steps
Exterior acrylic paint film lasts 7 to 12 years on prepared siding when two coats are applied at label thickness in mild sun and moisture conditions. That lifespan shortens to 5 to 8 years on harsh exposures and stretches toward 12 to 15 years on sheltered fiber cement or masonry with quality coatings. Cost per year is the fair comparison. A $6,000 repaint that holds 10 years costs about $600 per year before touch ups, while a $4,200 job that fails in 5 years costs about $840 per year plus early redo hassle.
Climate loads explain most early failures. Intense UV fade chalks dark colors on south-facing walls, repeated freeze-thaw opens joints on shaded north walls, and wind driven rain pushes water behind cracked caulk. Coastal salt air, desert dust, and high mountain sun each age the binder faster. Vent bath and kitchen fans through the roof or gable, keep soil 6 to 8 inches (15 to 20 cm) below siding, keep sprinklers off walls, and keep gutters moving water away from fascia and soffit joints.
Some edge cases change the answer. Painting bare weathered gray wood costs more because fibers need sanding and thirsty grain needs extra primer. Painting vinyl darker than the original can cause warping in hot sun, so stay near the factory color depth or use vinyl safe palettes. Fresh stucco needs curing time and high pH tolerant primer. If blistering returns every two years in one spot, suspect interior humidity, plumbing leaks, or missing flashing rather than bad paint. Clean yearly, touch up caulk and exposed ends, wash shaded walls each spring, and get a detailed repaint quote when peeling spreads beyond isolated trim.
