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Stucco and EIFS remediation cost calculator

Stripping failed stucco or EIFS and replacing what is rotten behind it is often $12 to $28 per square foot of wall, or roughly $15,000 to $40,000 for a meaningful share of a house. A hairline crack and a coat of paint are not this job. The money is the sheathing, the weather barrier and the cladding you put back.

Reviewed 25 October 2026 · Written by Mantu Kumar

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Written and maintained byMantu Kumar

Evidence review17 October 2026

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Key facts at a glance

• Spot repair of sound stucco is often $8–$18 per sq ft of the patch, not of the whole house.
• Tear-off and new stucco commonly $14–$28 per sq ft when the lath and barrier come off.
• Fiber-cement conversion after tear-off is often $12–$24 per sq ft plus sheathing.
• Rotted OSB or plywood adds about $2–$8 per sq ft of the bad area, sometimes more at window openings.
• Hidden water is the reason a “small crack” quote becomes a wall quote. Open a test panel before you sign a paint bid.

2026 planning bands for residential stucco remediation and cladding replacement. Moisture damage varies too much for a single national price.

2026 planning ranges

1. 1Small crack patch · $200–$800
2. 2Tear-off + disposal
3. 3Rotten sheathing
4. 4New sheathing + 2-layer barrier
5. 5Drainage gap + weep screed
6. 6Re-stucco or fiber cement
7. 7Moisture probe test
8. 8Kick-out flashing
9. 9EIFS or 3-coat stucco

Whole-wall remediation: Severe homes often $14,000–$34,000 once sheathing is replaced.

• Test panel before a whole-house price.
• Windows and kick-out flashing are where these walls fail.
• EIFS (synthetic stucco) holds water differently from traditional three-coat stucco.

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Diagram, part by part

Stucco and EIFS remediation: every numbered part explained

The stucco and eifs remediation drawing above has 9 numbered parts, from Small crack patch to EIFS or traditional stucco. Each card below frames one of them, and after you run the calculator it shows what that part adds to your estimate.

1. 1 Small crack patch

   $200–$800

   Hairline cracks can be patched and sealed when the wall behind them is dry. A patch over wet sheathing only hides the problem.

   What moves it: Crack length and the moisture behind the wall.

   On the quote: Ask for moisture readings before accepting a patch.

2. 2 Tear-off & disposal of old stucco

   Failed stucco is removed down to the framing so the wall can be inspected, dried and rebuilt. Debris is heavy and is hauled away.

   What moves it: Wall area and access.

   On the quote: Ask how much wall area is being opened and why.

3. 3 Rotten sheathing replaced by the sheet

   Rotten sheathing behind stucco is replaced by the sheet once it is exposed. Studs and sill plates are checked too.

   What moves it: How much wood is soft.

   On the quote: Get a per-sheet price and photos of each replaced sheet.

4. 4 New sheathing + 2-layer barrier

   Part of the rebuild

   New sheathing gets two layers of water-resistive barrier so water that passes the stucco can drain down and out.

   What moves it: Wall area and the barrier products.

   On the quote: Confirm two layers, lapped shingle-style.

5. 5 Drainage gap, lath, weep screed

   A drainage gap, lath and a weep screed at the base let water escape instead of being trapped. Window flashing and kick-outs where roofs meet walls are part of this line.

   What moves it: Openings, roof-wall intersections and wall area.

   On the quote: Ask how the wall drains at the base and where kick-out flashing goes.

6. 6 Re-stucco or fiber cement

   $7–$17 per sq ft

   Finally the wall is re-stuccoed or re-clad, often in fiber cement, which avoids repeating the moisture problem.

   What moves it: Finish chosen and wall area.

   On the quote: Compare the cost and upkeep of each finish.

7. 7 Moisture probe testing

   Before any decision

   A stucco inspector drills small holes and reads moisture in the sheathing behind the wall, especially under windows and at roof lines. The readings decide between a patch and a tear-off.

   What moves it: The number of test points and the house size.

   On the quote: Ask for a map of readings and get an independent inspection before a large job.

8. 8 Kick-out flashing

   Small part, big leaks

   Where a roof edge ends against a wall, a kick-out flashing turns water into the gutter. Without it, roof water runs behind the stucco and rots the wall below.

   What moves it: The number of roof-wall intersections.

   On the quote: Ask whether kick-out flashing is installed at every roof-wall junction.

9. 9 EIFS or traditional stucco

   Changes the approach

   EIFS, or synthetic stucco, is foam board with a thin finish and traps water more easily if it lacks a drainage layer. Traditional three-coat stucco is thicker and harder. Inspection tells you which you have.

   What moves it: The cladding type and how it was built.

   On the quote: Ask the inspector to confirm whether the walls are EIFS or traditional stucco.

What is behind the wall

The stain on the stucco is not the repair

A remediation photo shows two surfaces at once: the cladding that came off, and the sheathing you now have to decide about. If the wood is soft, the siding price is only half the conversation.

Ask the bid to name the layers, not the color. These close-ups are crops of the same AI-generated illustration.

01Tear-off edge

How far the tear-off goes

A patch, one wall, or every elevation. Window returns and the bottom course are where bids hide square feet.

02Wet sheathing

Sheathing allowance

A unit price per sheet when the OSB is soft, not a verbal “we’ll see.”

03New cladding

What goes back

New stucco over a drained barrier, or fiber-cement lap. Kick-out flashing at roof-to-wall intersections is part of the waterproofing, not a painter’s caulk.

Before you sign a quote or file a claim, verify these three details

Square feet

Of cladding removed, not of the footprint.

Sheathing

Unit price and who approves each sheet.

Flashing

Windows, doors, deck ledger and kick-outs written in.

Already converting the whole house to siding? Open the siding calculator →

Stucco remediation cost (2026)

A crack is not a wet wall

Traditional stucco cracks. That is not automatically a tear-off. The expensive failures are the ones that let water past the paper and into the OSB: missing kick-out flashing where a roof dies into a wall, windows flashed to the stucco instead of to the barrier, and EIFS installed without a drainage plane. The wood can be soft while the finish still looks almost fine.

A useful bid starts with a test opening at a suspicious window or at the bottom of a wall. It prices sheathing as a unit cost so you are not renegotiating every sheet. It names the new assembly. Putting the same stucco back over wet wood, or caulking the crack and painting, is how the job gets bought twice.

Mold on the sheathing is a moisture problem first. If the cavity is contaminated, the mold remediation calculator is the companion, not a substitute for fixing the flashing.

Worked example: 400 sq ft wall, some rotten sheathing, fiber cement

What insurance does with a wet stucco wall

• Years of seepage are usually maintenance or a construction defect, not a sudden covered peril. A paint claim will not be opened for them.
• A named storm that tears cladding off can be a claim for the damaged area. Matching rules decide how much of the elevation comes with it. See matching laws.
• Rot discovered during a covered repair is the argument adjusters and contractors actually have. Document what was wet from the event and what was already soft.
• An ACV policy depreciates the cladding. Stucco and fiber cement have different lives. The calculator uses a 30-year life for the assembly you select.

Stucco remediation cost by region

The calculator's default stucco remediation job, repriced for each of its six regions. At the national average it runs $5,830 – $12,900; South / Lower Midwest is the lowest at $5,072 – $11,223, and West Coast metro is the highest at $7,579 – $16,770, a gap of about $4,027 at the midpoint.

What “Cladding scope” does to the price

Every other input stays at its default and only “Cladding scope” changes. The cheapest choice, Spot repair, substrate sound, comes to $3,750 – $8,900; the most expensive, Tear-off and new stucco, comes to $6,630 – $14,500.

What “Soft sheathing” does to the price

Every other input stays at its default and only “Soft sheathing” changes. The cheapest choice, None expected, comes to $5,630 – $12,100; the most expensive, Most of the area, comes to $6,190 – $14,340.

How age changes the stucco remediation claim payout

Using the default job, a $2,500 deductible and a 30-year expected life. At 10 years old, about $3,122 is held back as depreciation; a replacement cost policy releases it after the work is finished, while an actual cash value policy keeps it.

Quote checklist: 7 items to verify

Stucco remediation quotes need to show how far the wall will be opened and what happens if more rot is found.

1. Moisture testing. An independent probe report with a map of readings.
2. Scope by elevation. Which walls are opened and the square footage of each.
3. Sheathing and framing allowance. Per-sheet and per-foot prices for hidden rot.
4. Barrier and drainage. Two layers of barrier, drainage gap and weep screed.
5. Flashing. Window, door and kick-out flashing at every roof-wall junction.
6. Finish. Three-coat stucco or fiber cement, with color and texture.
7. Permit and warranty. Permit, inspections and a written workmanship warranty.

How long the job takes

Plan around rain: walls are most vulnerable between tear-off and the new barrier, so ask how open walls are protected overnight.

Common mistakes that raise the cost

• Patching wet walls. Caulk and paint over wet sheathing hide rot that keeps spreading.
• Skipping the probe test. Without readings, nobody knows how far the damage goes.
• Using the remediator as inspector. An independent inspection avoids a conflict of interest.
• Missing kick-out flashing. Roof water behind the wall is a leading cause of stucco rot.
• No drainage gap. New stucco without a way for water to drain repeats the problem.

Ways to keep the cost down

Stucco repairs cost less when moisture is found early.

• Inspect before buying or after leaks. Early probe tests limit the damage.
• Repair flashing first. Stops new water while you plan.
• Open only wet areas. When readings show the rest is dry.
• Consider fiber cement. It can cost less than three-coat stucco in some markets.
• Keep gutters and kick-outs working. Roof water is a main cause of rot.
• Get an independent inspector. Avoids oversized scopes.

Signs of hidden stucco damage

Many of these show up long after the rot starts.

• Stains below windows. Water behind the sill.
• Cracks at corners and openings. Paths for water.
• Soft or bulging areas. Rotten sheathing behind.
• Musty smells inside. Wet walls.
• Mold at baseboards on exterior walls. Moisture inside the wall.

Sources and further reading

• NAIC — Actual cash value vs replacement cost coverage
• ReplaceCost siding calculator
• HomeGuide — Stucco repair and remediation cost

Frequently asked questions