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Siding & Exterior

Exterior House Painting Guide: Cost, Prep, Paint Types & DIY Tips

Lumberama Editorial Team, Exterior Painting Specialists Sep 13, 2026 9 min read
Exterior house painting cost prep and tips guide

When to Repaint

Signs it's time: Peeling, cracking, or flaking paint. Fading or chalking (white residue when rubbed). Bare wood exposed. Caulk cracking around windows and doors. Stains or discoloration.
Paint lifespan by surface: Wood siding: 5-7 years. Aluminum siding: 5-10 years. Stucco: 5-6 years. Fiber cement (Hardie): 10-15 years. Brick (painted): 15-20 years.
Climate impact: Southern/sunny exposure: paint fades faster. High humidity: moisture issues accelerate failure. Cold climates: freeze-thaw cycles stress paint. Coastal: salt air degrades paint faster.

Preparation (Most Important Step)

Power washing: Remove dirt, mildew, and loose paint. Use 1,500-2,500 PSI. Add mildewcide to cleaning solution. Allow 24-48 hours drying time.
Scraping and sanding: Scrape all loose and peeling paint. Feather edges of remaining paint. Sand glossy surfaces for adhesion. Fill holes and cracks with exterior wood filler.
Caulking: Replace all cracked caulk around windows, doors, and trim. Use paintable exterior caulk (silicone or polyurethane). Smooth with wet finger for clean lines.
Priming: Bare wood: always prime (oil-based or bonding primer). Stains (tannin bleed, water stains): stain-blocking primer. Previously painted surfaces in good condition: spot-prime only. Full prime coat recommended for best results.

Paint Types

100% acrylic latex (recommended): Most popular for exteriors. Excellent adhesion and flexibility. Dries quickly (2-4 hours between coats). Easy cleanup (soap and water). Low VOC options available. Breathes (allows moisture to escape).
Oil-based (alkyd): Superior adhesion to bare wood. Smoother finish. Longer dry time (24+ hours). Harder cleanup (mineral spirits). Higher VOC (more regulated). Being replaced by advanced latex in most applications.
Top brands: Sherwin-Williams Duration: premium, 15-year warranty. Benjamin Moore Aura: excellent coverage, self-priming. Behr Ultra: good value, solid performance. PPG Timeless: good mid-range option.

Cost

Professional painting: Average home (1,500-2,500 sq ft): $3,000-$7,000. Large home (3,000+ sq ft): $5,000-$12,000. Multi-story: add 20-40% (scaffolding, difficulty). Trim only: $1,000-$3,000.
Per square foot: Labor: $1.50-$4.00/sq ft. Paint: $0.50-$1.50/sq ft. Total: $2-$5.50/sq ft (professionally painted).
DIY cost: Paint (premium, 2 coats): $300-$600 for average home. Primer: $100-$200. Supplies (brushes, rollers, tape, drop cloths): $100-$200. Scaffolding or ladder rental: $100-$300. Total DIY: $500-$1,300.
DIY savings: 60-80% less than professional.
Time: DIY: 4-7 days for average home. Professional crew: 2-4 days.

Application Tips

When to paint: Temperature: 50-85 degrees F. Low humidity (below 85%). No rain forecast for 24 hours. Avoid direct hot sun on the surface. Early morning start (follow the shade).
Two coats minimum: Always apply two coats for proper coverage and longevity. Allow full dry time between coats. Use backbrushing technique (brush into surface after rolling).
Order of work: Siding first (largest area). Trim and fascia second. Windows and doors third. Final touch-ups last.

Frequently Asked Questions

Lumberama Editorial Team

Exterior Painting Specialists

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