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Patch Repair or Full Restucco? How to Decide

The choice between a patch and a full restucco is arithmetic, not a feeling. Measure what has actually failed, count the old patches, and see where the two costs cross.

Start with a percentage, not a feeling

The decision between patching and restuccoing is not a judgement call about how bad a wall looks from the driveway. It is arithmetic. Work out how much of each elevation has genuinely failed, then let that number choose the scope.

Most homeowners come at it the other way. They see three cracks and a soft spot near the hose bib, then either want the smallest possible fix or assume the house is finished. Both instincts cost money.

So before anybody quotes anything, the wall gets measured. Not the crack. The failure.

How to measure what has really failed

Sounding is the whole test. Tap across the wall with a knuckle, a plastic mallet or the butt of a screwdriver and listen. Bonded stucco rings. Debonded stucco gives a dull, flat thud, and the sound changes the moment you cross the edge of the failure.

Chalk the boundary as you go. What you end up with is not cracks, it is shapes, and the shapes are almost always larger than the visible damage. A crack six inches long can sit in the middle of a hollow area four feet across.

Then do the arithmetic wall by wall, because stucco does not fail evenly. On a Treasure Coast ranch the west and south faces take the sun, while the wall behind a sprinkler head or under an overflowing gutter takes the water.

• Tap the whole wall, not only around the cracks
• Chalk every hollow area while you are standing there
• Measure the marked areas and add the square footage up
• Measure the elevation, length times height, less the openings
• Do each wall separately, then compare the numbers

The percentage that flips the decision

There is no code number for this, and a contractor who states one as a rule is making it up. What exists is a working range most crews land on, worth knowing so you can hear where a bid is coming from.

Under roughly a tenth of an elevation, patching is nearly always right. Between a tenth and a third, pattern matters more than area. Ten percent in one continuous block below a window is a patch. The same ten percent scattered across twenty hollow spots is a wall letting go, and patching it buys twenty seams for the next failure to start in.

Past about a third, the case for patching thins fast. You are already paying setup, access, material, texture work and coating across most of that face anyway.

• Under about 10 percent of an elevation: patch, then coat the wall
• 10 to 30 percent in one continuous area: still usually a patch
• 10 to 30 percent scattered across the face: lean to resurfacing
• Over about a third: resurface or rebuild that elevation
• Any percentage with moisture behind it: find the source first

How many rounds this wall has already had

Ask how many times this wall has been repaired. A first repair on a twenty year old finish is ordinary maintenance. A third repair in the same band of wall is information, and what it says is that patching is not solving the thing that is happening.

Every patch leaves a perimeter. That seam is where old material meets new, where two mixes of different ages sit against each other, and it is the natural place for the next crack. A wall carrying six old patch perimeters has been cut into pieces, and it moves like pieces.

There is a visual limit too. Patches made at different times, with different sand and different coating batches, never quite line up. Long repair histories in Fort Pierce and Stuart often produce sound walls that read as a quilt from the street. That alone is a fair reason to resurface.

Whether the texture can ever be matched

Texture decides how the repair looks, and how it looks is what you live with. A flat or light sand finish blends most easily. Knockdown and lace can be matched by a good hand, but the match has to be made on your wall, in your light, by somebody willing to throw away two sample boards.

Age works against all of it. A finish that has sat under Florida sun since the house was built has chalked and bleached, so new material beside it reads brighter even when the pattern is right. The usual answer is to coat the elevation corner to corner once the repair is done.

Where the texture is unusual, worn past matching, or the patch count is high, resurfacing gives a uniform wall for a cost close to patching plus full coating anyway. In Tradition and St. Lucie West, put the colour to your architectural review committee before material is ordered. Requirements vary by community, so ask your association first.

What is underneath decides more than what is on top

All of that assumes the wall behind the stucco is sound, so confirm it before trusting any percentage. On a block home it normally is. Block does not rot, and once failed plaster is off, the crew is usually looking at clean masonry.

Framed walls are the other story. Gable ends, second storeys, bump-outs and the older frame stock around Fort Pierce and Stuart carry stucco on wire lath over sheathing, where water can leave rusted lath, corroded fasteners and soft sheathing. None of it is visible until the wall is open.

So the order of operations matters. Find the water, fix the water, then decide the scope.

Where the two costs cross

Patch work is priced as a minimum plus area. The minimum covers the truck, the mixing, the protection and the return trips, and it does not shrink because your damage is small. Restucco is priced closer to straight square footage, so the unit cost falls as area grows.

On one elevation of a single storey block home here, isolated patch work commonly sits in the region of $10 to $25 per square foot of patched area with a service minimum on top, while resurfacing an elevation tends to land around $4 to $9 per square foot of wall. Put your measured square footage into both and the crossing point shows itself.

Two things move that crossing point earlier. Access, paid for once whether you patch a spot or redo the face, and coating, which most homeowners buy for the whole elevation anyway. None of these figures is a quote. They are a frame for reading estimates, and the only number that means anything comes from somebody standing at your wall with a mallet.

• Patch: service minimum, plus per square foot, plus texture work
• Restucco: per square foot of wall, unit price falling with area
• Access is a fixed cost either way above one storey
• Full elevation coating usually gets bought in both cases
• Several small patches carry the minimum once in a single visit