Most homeowners want a number before they pick up the phone. The ranges below reflect what Louisiana properties commonly pay and the factors that move a quote up or down.
Average Stucco Cleaning Cost in 2026
Stucco cleaning cost usually lands between $0.40 and $0.75 per square foot of wall surface. Large jobs often dip below that on a per-foot basis; small, heavily soiled walls run higher. Here is a breakdown by home size.
| Home size | Approx. wall area | Typical price range |
|---|---|---|
| Small (1-story, ~1,200 sq ft) | 900–1,200 sq ft | $350–$650 |
| Medium (2-story, ~2,000 sq ft) | 1,600–2,200 sq ft | $600–$1,000 |
| Large (2,800+ sq ft) | 2,400–3,500 sq ft | $950–$1,800 |
A whole-home softwash house cleaning cost on other siding types tends to fall in a similar band, since labor and access drive the price more than the material itself.
What Drives the Price of a Stucco Cleaning Job
No two quotes match because no two houses match. The main variables:
| Factor | Effect on price |
|---|---|
| Surface area | More square footage, higher total |
| Stories & access | Second-story or hard-to-reach walls need more setup |
| Degree of soiling | Heavy algae, mold, or mildew takes more solution and time |
| Texture & condition | Rough or aging stucco holds grime and slows the job |
| Scale of property | Commercial exterior building cleaning and warehouse cleaning are priced per project, not per home |
That organic growth isn’t only cosmetic. The EPA’s guide to mold, moisture, and your home states that moisture control is the key to controlling mold, and stucco’s porous surface traps exactly the dampness these growths need. Removing them protects the finish, which is why many owners schedule expert stucco cleaning services rather than wait for stains to set in.
Deferred maintenance always costs more The mold on this hotel’s exterior stucco was left for years — we removed the mold and buildup, …
Soft Wash vs. Pressure Washing Stucco, and Why It Affects Cost
Many guides treat “pressure washing stucco” as the only option. It isn’t, and the method changes both your risk and your bill. High pressure can crack, chip, and force water behind a porous surface. The National Park Service’s preservation brief on cleaning historic masonry advises the gentlest means possible, favoring low-pressure water over aggressive blasting.
Soft washing does exactly that: low pressure plus a biodegradable solution that kills algae and mildew at the root, so the finish stays intact and results last longer.
A repair bill for cracked stucco runs far higher than the cleaning itself, which makes the gentler method the better value.
Our walkthrough on how to clean stucco safely covers the step-by-step difference.
How Often Stucco Should Be Cleaned
Every one to two years suits most homes, and sooner where shade, trees, or north-facing walls speed up growth. Louisiana’s humidity is the accelerator. The CDC notes that mold grows wherever moisture collects, and the black spots you see on stucco, sidewalks, and concrete are that same mildew and algae taking hold on damp surfaces.
How to Spot a Fair Stucco Cleaning Quote
A legitimate quote names the method, confirms the solution is safe for your plants, and shows proof of insurance. Compare several written estimates instead of jumping at the lowest bid. A rock-bottom price often signals high-pressure blasting or diluted product that lets stains return within weeks.
Ready for a real number instead of a range? Get a free, no-pressure estimate for residential stucco cleaning services and see exactly what your home will cost.
Key Takeaways
| Point | Detail |
|---|---|
| Price range | $0.40–$0.75/sq ft; ~$350–$1,800 depending on size |
| Top cost drivers | Area, access, and soiling level |
| Best method | Soft washing protects the finish |
| Frequency | Every 1–2 years in humid climates |
| Fair quote | Insured, method stated, plant-safe solution |
Frequently asked questions
How much does it cost to pressure wash a stucco house?
How much does it cost to stucco a 1,000 sq ft house?
What is the best way to clean exterior stucco?
How often should stucco be cleaned?
