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Loose stucco on a chimney in Wynwood, fixed properly

A matched repair mix protects the old stucco around the patch instead of stressing it.

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Stucco damage worth a closer look in Wynwood

  • A bulge or swelling in the plaster
  • Old patches cracking at their edges
  • Crumbling stucco close to the ground
  • Vines rooted into chimney cracks
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Stucco repair choices for Wynwood chimneys

Keep a new patch flush with the old plaster

A new patch should meet the old stucco at a clean edge, not spread over it. A thin feathered layer on top of sound stucco has little to grip and tends to flake at the rim. It also leaves a visible halo around the repair.

We cut the edge of the repair area back to sound material and finish the new work flush with it. If the whole face needs a new finish for color, that is a separate decision, and we price it as its own item. You choose whether the patch alone is enough.

Leaving metal lath off sound masonry

Adding metal lath is not automatically an improvement. Preservation guidance advises against inserting metal lath when stucco is applied over masonry in sound condition. Fastening it damages the masonry, and any water that reaches it can start rust.

Where the stucco sits on sound block or brick, we prepare the masonry surface so the new coats bond to it directly. Lath is kept for framed chases and for the few masonry cases where the base cannot take a direct bond. We explain the choice for your chimney before the work starts.

Checking the old coating before adding a new one

A new coating has to bond to what is already on the wall. The International Masonry Institute recommends knowing the type of existing coating and testing how well it adheres before any recoating project.

For a chimney, that can mean a small test area and a check of whether the old coating lifts. If it does, it needs removing where it has failed. We tell you what the test shows and how it affects the scope, rather than coating over a surface that is already letting go.

Stucco cracks that come from movement

The National Park Service lists settlement among the causes of stucco cracking. When the structure beneath moves, rigid plaster over it cracks along the lines of stress, often from corners or openings.

A crack that widens, runs diagonally or appears alongside other signs of movement needs more than a cosmetic fix. We describe what we see. Where the movement looks structural, we tell you it needs its own assessment before the stucco is repaired, so the patch is not asked to hold the chimney together.

What we check before pricing stucco work

  • Adhesion check on the existing coating
  • Paint on repaired areas where included
  • Debris cleaned up and hauled away
  • Written record of the stucco work

Stucco chimney repair, answered plainly

Why not just seal stucco cracks with caulk?

Caulk weathers differently from stucco, holds dirt and often shows more than the crack did. On a fine, stable crack, a thin mineral slurry or a repair mortar suits better. A flexible sealant is kept for cracks that still move.

Does rain affect when new stucco can be applied?

Yes. Heavy rain can damage fresh stucco, so we cover the work or move a coat to another day when rain threatens. Strong heat matters too. We tell you in advance if the forecast changes the schedule.

Will you need to go into the attic?

Only if there is safe access and the chimney passes through it. The attic can show stains or damp sheathing that explain the outside damage. If you prefer we stay outside, tell us, and we note that the attic was not checked.

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