How much does stucco repair cost?

Hairline crack (DIY): $5-$20 per crack. Small patch (professional, under 2 sq ft): $100-$400. Large area repair: $8-$20/sq ft (professional). Full re-stucco (whole house, 1,500 sq ft): $9,000-$18,000. EIFS remediation: $20-$50/sq ft ($20,000-$100,000+ for a whole house). Most small repairs are very affordable — the key is catching damage early before it spreads.

Can I repair stucco myself?

Hairline cracks: yes, easy DIY with elastomeric caulk ($5-$15). Small patches (under 2 sq ft): moderate DIY with pre-mixed stucco repair compound. The challenging part is matching the existing texture. Large areas and structural repairs: hire a professional. EIFS repairs: always hire a professional (improper repair can trap moisture and cause worse damage). For DIY: practice texture matching on a scrap piece of plywood before working on the wall.

Are cracks in stucco normal?

Hairline cracks (under 1/16 inch) are normal in traditional stucco. They occur due to curing shrinkage and thermal expansion/contraction. They are cosmetic and easy to fix. Cracks wider than 1/4 inch, stair-step cracks, or cracks that grow over time may indicate structural issues (foundation settlement, framing movement) and should be evaluated by a professional. EIFS (synthetic stucco) should NOT crack — cracks in EIFS are always a concern because they allow moisture infiltration behind the foam.

How long does stucco last?

Traditional (Portland cement) stucco: 50-80+ years with maintenance. EIFS (synthetic): 20-30+ years (when properly installed with drainage). Maintenance: inspect annually for cracks and damage, repair cracks promptly, repaint every 5-10 years (elastomeric paint is best), keep sprinklers and landscaping away from stucco walls, ensure proper drainage at the base (weep screeds visible and clear).

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Home Improvement

Stucco Repair Guide: Cracks, Patching & Costs

Lumberama Editorial Team, Exterior Cladding & Stucco Repair Specialists Jun 10, 2026 13 min read

Types of Stucco

Traditional (Portland Cement) Stucco

Three-layer system: scratch coat, brown coat, and finish coat over metal lath. Total thickness: approximately 7/8 inch. Hard, durable, breathable. Lifespan: 50-80+ years with maintenance. Common in: Southwest US, Mediterranean-style homes, older homes nationwide. Rigid — will crack with building movement (this is normal).

Synthetic Stucco (EIFS)

Exterior Insulation and Finish System. Layers: foam insulation board, reinforcing mesh, base coat, and finish coat. Total thickness: 1-3 inches (including insulation). Lighter than traditional stucco. Better insulation value. More flexible (less cracking). Vulnerable to moisture damage if improperly installed (notorious for trapping moisture behind the foam, causing rot). Common in: Southeast US, newer construction.

Common Stucco Problems

Hairline cracks: Very thin cracks (less than 1/16 inch). Normal in traditional stucco due to curing shrinkage and thermal expansion. Cosmetic issue. Not a structural concern. Easily repaired with elastomeric caulk or paint.

Stair-step cracks: Follow the mortar joints or framing pattern. Often indicate foundation settlement or structural movement. Width determines severity: under 1/4 inch may be cosmetic, over 1/4 inch warrants structural evaluation.

Spider web cracks (pattern cracking): Network of fine cracks. Caused by: finish coat applied too thick, too-rapid drying (hot/windy conditions during application), or wrong mix ratio. Cosmetic but can allow moisture entry over time.

Delamination/bulging: Stucco separates from the substrate (sounds hollow when tapped). Caused by: moisture behind the stucco, bond failure, or lath corrosion. Must be removed and replaced — cannot be patched over.

Moisture damage (especially EIFS): Dark staining, soft spots, mold/mildew. EIFS trapped moisture is a serious and expensive problem. May require partial or full remediation. Signs: spongy areas when pressed, discoloration, peeling finish, musty smell near walls.

Repair Methods

Hairline crack repair: Clean the crack with a wire brush. Apply elastomeric caulk (designed for stucco). Smooth with a damp finger or tool. Paint to match. Or: use elastomeric paint over the entire wall (bridges hairline cracks, flexible coating prevents recurrence). $5-$20 per crack (DIY).

Small patch (under 2 sq ft): Remove loose stucco back to solid material. Apply bonding agent. Apply stucco patch material (pre-mixed stucco repair compound). Texture to match surrounding stucco (the hardest part — matching texture is difficult). Let cure. Paint. $20-$100 (DIY) or $100-$400 (professional).

Large area repair: Remove all damaged stucco. Inspect and repair lath (replace rusted or damaged lath). Apply scratch coat, brown coat, and finish coat (the full three-coat system). Texture and paint to match. $8-$20/sq ft (professional).

EIFS remediation: Inspect behind the foam for moisture damage. Replace rotted sheathing and framing. Install improved drainage (weep screeds, drainage mat). Reinstall EIFS with proper drainage details. Very expensive: $20-$50/sq ft. Full-house remediation: $20,000-$100,000+.