Stucco crack repair costs $200 to $800 for hairline cracks on one wall in 2026, and $600 to $2,650 when a crack has let water behind the stucco, with a national average near $900 per repair visit, or $8 to $50 per square foot. The width and pattern of the crack tell you which price you face, and whether it is cosmetic or structural. Below, how to read the crack, what each repair costs, and when to call an engineer instead of a patcher.
What you'll learn in this guide
- Cracks under 1/8 inch are cosmetic; 1/8 to 1/4 inch means settling to monitor; over 1/4 inch, offset or stair-stepped means structural.
- Sealing hairline cracks costs $19 to $23 per linear foot professionally, about $400 to $700 for one wall.
- Patching a hole or a chipped corner runs $200 to $800; matching the texture and color is most of that price.
- Water behind stucco (soft spots, stains, bulges) pushes a repair to $600 to $2,650 because the lath and paper are replaced.
- Re-stuccoing a wall costs $1,500 to $3,000 per 250 square feet, so isolated repairs are almost always the better spend.
Reading a stucco crack: width and pattern
- Hairline, under 1/8 inch, random or spidering. Normal shrinkage and thermal movement. Cosmetic. Seal it so water stays out.
- 1/8 to 1/4 inch, straight lines from window and door corners. Settling cracks. Fill them, mark the ends with a pencil, and check in six months. Growth means the house is still moving.
- Over 1/4 inch, diagonal, stair-stepped, or one side higher than the other. Structural movement. This is an engineer's call before anyone patches it.
- Cracks with staining, bulging or a hollow sound when tapped. Water got behind the stucco. The crack is the symptom; the repair is the wall.
Stucco crack repair cost by type of repair in 2026
| Repair | Low | Typical | High |
|---|---|---|---|
| Hairline cracks sealed, one wall, elastomeric | $200 | $500 | $800 |
| Crack sealing, per linear foot | $19 | $21 | $23 |
| Patch a hole, chip or corner, texture matched | $200 | $450 | $800 |
| Repair with new lath and paper, water damage | $600 | $1,600 | $2,650 |
| Re-stucco a wall, per 250 square feet | $1,500 | $2,000 | $3,000 |
| Elastomeric coat over a repaired wall, per sq ft | $3 | $4.50 | $6 |
Texture is the hidden line item. A patch that is flush and sealed but wears a different texture is visible from the street. A good stucco repair matches the existing finish, whether sand, dash or lace, and feathers the color so the repair disappears; that skill is why patching costs more than the bag of mix suggests.
Cosmetic, settling or structural: what to do with each
Cosmetic cracks are sealed with an elastomeric caulk or patch that stretches with the wall, then painted; DIY materials run $50 to $120 for a wall. Settling cracks get the same fill plus a six-month watch; if the pencil marks are passed, the movement is ongoing and a foundation contractor should look at drainage and soil. Structural cracks are not a stucco problem. A structural engineer's evaluation costs $350 to $900 and produces the repair plan; the stucco is fixed last, after the movement is stopped. Patching a structural crack first hides the evidence and wastes the patch.
What this means for you
Plan on $200 to $800 to seal hairline cracks and $600 to $2,650 if water has gotten behind the wall in 2026. Measure the crack: under 1/8 inch, seal it this season; over 1/4 inch or stair-stepped, call an engineer before a patcher. Sealing early is the whole game, because a $500 seal today is what prevents the $2,000 lath repair next year.
Good questions, straight answers
Yes. Cracks under 1/8 inch wide are shrinkage and thermal movement, and nearly every stucco home has them. They are cosmetic, but they should be sealed with an elastomeric product so rain cannot reach the paper and lath behind the finish coat.
$200 to $800 for hairline cracks on a typical wall in 2026, or about $19 to $23 per linear foot professionally. Patching holes and chips runs $200 to $800, and repairs where water reached the lath cost $600 to $2,650.
When it is wider than 1/4 inch, runs diagonally or in a stair-step pattern, has one side raised above the other, or keeps growing after being filled. Those patterns point to foundation or framing movement and call for a structural engineer, $350 to $900, before any patching.
Hairline cracks, yes. Clean the crack, fill it with an elastomeric stucco patch or caulk, texture it with a sponge and paint. Materials cost $50 to $120 per wall. Holes, water damage and anything with a hollow sound behind it need the lath repaired, which is a professional job.
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