Stucco Crack Repair in Cumming, GA
Stucco crack repair restores the structural integrity and weather resistance of your exterior walls by addressing the hairline fractures, map cracking, and delaminated sections that allow moisture to penetrate behind the cladding. Homeowners with older stucco elevations, properties that have settled, or walls showing seasonal movement are the most common candidates for this service. Left unaddressed, even small cracks can allow water intrusion that saturates the weather-resistive barrier, corrodes the metal lath beneath, and leads to far more extensive damage over time.
The repair process begins with a thorough tap-sounding survey of the entire wall to map any drummy or delaminated areas before a single patch is applied. Failed stucco is then cut back to a sound edge using a wet-cutting diamond saw, and the perimeter is undercut so the new material keys in mechanically. Fresh galvanized metal lath and grade-D building paper are lapped shingle-style over the existing weather barrier, and the three-coat portland cement-lime system is hand-applied with a hawk and trowel—scratch coat scored and cured, brown coat floated to a true plane and moist-cured to minimize shrinkage, and a final acrylic-polymer finish coat tinted and textured to match the surrounding wall. For walls exhibiting fine map cracking that continues to move seasonally, an elastomeric crack-bridging coating is applied over the repaired elevation. Control and expansion joints are re-cut on the original grid and sealed with closed-cell backer rod and masonry-grade polyurethane sealant rather than standard paintable caulk, ensuring the repair moves with the wall rather than against it.
Typical pricing for this service ranges from $250 to $800 per small crack repaired and textured, and $400 to $1,200 per color-matched patch. If map cracking across a full elevation warrants an elastomeric coating, that work runs $1,200 to $3,500 per elevation. Complete stucco repair projects typically fall between $1,500 and $9,000 depending on scope. Locally, the well-drained Habersham soils that dominate the area help reduce hydrostatic pressure against foundations, but the region still receives approximately 50.4 inches of annual precipitation with a notably wet July averaging 4.8 inches—meaning any crack that allows water behind the lath is exposed to meaningful seasonal moisture loading. The wide seasonal temperature range, with January average lows near 35.6 °F and July average highs reaching 90.1 °F, drives the thermal cycling that causes stucco joints and patches to move repeatedly each year, making properly re-cut control joints and elastomeric sealants especially important for long-term performance.
Frequently Asked Questions
Can you match the color and texture of my existing stucco?
Yes. We mix the finish to your color and replicate the texture on a sample board first. Keep in mind that years of sun and weather lighten the original, so a patch can flash slightly until it weathers in; for a uniform look we sometimes coat the full elevation to a natural break.
Why do you re-cut control joints instead of just filling the cracks?
Stucco expands and contracts with temperature, and control joints are where that movement is supposed to happen. If a wall is cracking on a joint line, filling it solid just forces the crack to reopen next season. Restoring the joint lets the wall move without tearing the finish.
How long does a typical stucco repair take?
A crack repair or a single patch is often a one- to two-day job including texture and cure time. Re-stuccoing a full elevation runs several days because each coat has to cure before the next, and finish work waits on weather.
What is a weep screed and why does it matter?
A weep screed is the metal flashing at the bottom edge of a stucco wall that lets any water inside the system drain out above grade. Code requires it to sit a set distance above the ground. If it is buried or missing, water wicks up into the stucco and the base of the wall starts to fail.
My stucco sounds hollow when I tap it — what does that mean?
A hollow or drummy sound means the stucco has lost its bond to the lath behind it, usually from water getting in. That area is no longer protecting the wall and needs to be cut out and rebuilt, not just skim-coated over the top.
Can stucco be repaired in the winter?
Cement and finish coats need temperatures to stay above about 40 degrees while they cure, and a hard freeze the first night will ruin a fresh coat. We can do many repairs in cold months with protection, but final finish coats are scheduled for the warmer, drier part of the year.
Cumming Conditions That Affect Stucco Crack Repair
- Annual cooling degree days (base 65 °F): 2051. NOAA Climate Normals 1991–2020.
- Annual precipitation ~50.4 in. Rainy season January–March; wettest month July (~4.8 in), driest October (~3.3 in). NOAA Climate Normals 1991–2020.
- Secondary soil series: Habersham (GR-SL). Well drained drainage. Source: USDA NRCS Web Soil Survey.
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