Stucco Repair Cost Calculator

Where these numbers come from

Two different walls are both called stucco, and it is the whole question

Traditional three-coat, over metal lath is cement render over metal lath over building paper: heavy, hard, and vapour-permeable, so water that gets in can get out again. EIFS or synthetic, over foam board is a thin acrylic coat over polystyrene board glued to the sheathing: insulating, light, and it does not breathe. From the pavement they are indistinguishable, and no other calculator asks which you have. The repair itself differs by only $247 — $1,310 against $1,557 — and that is the small half. On a synthetic wall the visible crack is rarely the job: water that got past a failed sealant joint years ago is still in there, against the framing, and what it has done is invisible from outside. ⚠️ The check costs nothing and takes ten seconds: knock on the wall with a knuckle. Solid and cold is traditional. Hollow, with a slight give under a fingernail, is synthetic — and then the line that matters is the investigation, $2,417 all in on this wall rather than $1,557. Opening a section of a wet synthetic wall is also how the question on our mold remediation cost calculator gets asked, at $2,099 for the render side of it.

The patch is going to show, and that is worth deciding in advance

Nobody can match a patch into a thirty-year-old wall, and a quote that promises to should be read carefully: the colour of traditional stucco is in the mix rather than on top, the texture is applied by hand, and the wall around it has three decades of sun on it. So the real choice is between living with a visible repair and paying to make the whole face uniform — $368 more to repaint the elevation or $1,901 more to re-coat it, against $1,310 for the patch alone. ⚠️ Painting is cheaper now and commits you to painting again for the rest of the wall’s life; an unpainted traditional wall never needed it, and our exterior painting cost calculator prices that recurrence. Re-coating keeps the property and costs more today. What almost nobody is offered is either option, which is why the patch gets done and the disappointment arrives a week later. The finish decides how bad it looks: $1,310 on a sand or float finish against $1,584 on smooth troweled, and on a smooth wall re-coating is often the only result worth paying for, because there is no texture to hide behind.

Why a small repair costs so much per square foot

Fill hairline cracks is $694 and re-coat a whole elevation is $3,212, which is a factor of 4.6 — but per square foot the order reverses: $32.76 for the patch against $6.42 for the whole face. Traditional stucco is applied in three coats and each has to cure before the next, so a repair of any size is several visits to the same wall, and the call-out, the mixing and the setting up are paid every time. Height compounds it, because the access has to stay up between visits: $1,310 at ground level, $2,329 on a second storey and $3,692 on a third, for exactly the same 40 square feet. ⚠️ The practical consequence is worth acting on: if there are three damaged spots on a house, having them done in one visit is the single cheapest decision available here, and cutting a patch back to a clean rectangle rather than an irregular shape is what makes it $1,683 of section repair rather than an argument.

Silica, lead paint, and where the water was actually getting in

Cutting or grinding cured stucco releases respirable crystalline silica — OSHA, Crystalline Silica, retrieved 2026-08-24 — which is why a crew doing this properly cuts wet or uses dust extraction, and why a household dust mask is not the answer. In a house built before 1978, cutting into painted render disturbs painted surface, and outdoors the threshold in EPA, Lead Renovation, Repair and Painting Program (retrieved 2026-08-24) is twenty square feet, which a section repair passes easily: $1,912 instead of $1,310 here. And if what is found behind a synthetic wall is wet sheathing, EPA, Mold Cleanup in Your Home (retrieved 2026-08-24) sets out what that becomes. ⚠️ None of which is the most important thing on this page: stucco very rarely fails on its own. It fails where water gets behind it — a window head, a roof-to-wall junction, a missing kickout flashing, a failed sealant joint — and repairing the render without fixing the source buys a couple of years at full price. Wages from BLS OEWS, May 2025, retrieved 2026-08-20, benefit-loaded from BLS ECEC. ⚠️ This project’s regional index carries no plasterer occupation, so the model uses brickmasons — the nearest trade it does carry. The regional multiplier is the strong part of the model and the absolute rate the weak one, and here more than elsewhere.

Material prices

Modelled estimates, not sourced prices. No public, machine-readable source of US residential material prices exists, and we would rather say so than pretend otherwise. Each line carries its own uncertainty band. How we estimate them.

Contractor overhead and profit applied at 33–43% over direct cost. Data last reviewed 2026-08-24.