Stucco & Algae
Removal
Specialized soft washing to safely remove black algae, green mold and staining from stucco homes across the Inland Empire, no damage guaranteed.
Algae & Mold Removal from Stucco Homes
The Inland Empire's warm, dry climate with occasional moisture creates the perfect environment for algae and mold to thrive on stucco surfaces. Those ugly black streaks running down your walls aren't just unsightly, they indicate biological growth that, if left untreated, can cause long-term surface damage.
🚫 Never Pressure Wash Stucco
High-pressure washing on stucco can crack the surface, force water behind the stucco layer and cause moisture damage inside your walls. Always use soft washing, low pressure + proper cleaning solutions, for stucco exteriors.
What's Causing Those Black Streaks?
The most common cause of black streaks on Inland Empire stucco is Gloeocapsa Magma, a cyanobacteria (algae) that thrives in humid conditions and feeds on calcium in stucco. It spreads roof-to-wall via rainwater runoff. Our soft washing treatment kills it at the cellular level.
Our Soft Wash Treatment Removes
- Black algae streaks (Gloeocapsa Magma)
- Green algae and mold patches
- Mildew and biological staining
- Dirt and pollution film
- Cobwebs and surface debris
Safe for Your Home & Landscaping
We use professional cleaning solutions that break down into salt and water, safe for plants, pets and people when applied and rinsed properly. We pre-wet all landscaping before application and rinse thoroughly after treatment.
Stucco Cleaning Questions
Can stucco be soft washed safely?
Yes. Soft washing is actually the right method for stucco. The low-pressure application combined with professional cleaning solutions kill algae and mildew at the root without driving water into the porous surface or chipping the texture. Learn more about why stucco turns black in SoCal and how to prevent it.
Will power washing damage my stucco?
Yes, it can. High-pressure water can chip stucco, force water behind the wall, and damage the underlying paint or sealant. Stucco is porous, so once water gets in, it stays. We cover the full picture in our guide on whether pressure washing damages stucco.
What's the best way to clean stucco exteriors?
A professional soft wash using professional cleaning agents specifically formulated for stucco. The chemistry does the cleaning, not the pressure, which means algae and mildew get killed at the root and the stucco texture stays intact. See our full guide on how to remove algae from stucco.
How do you make old stucco look new again?
A professional soft wash usually does it. Years of algae, mildew, and dirt buildup come off when the right chemistry is applied at low pressure. For homes that haven't been cleaned in 5 or more years, one wash typically restores the original color.
Is stucco difficult to keep clean?
Stucco's porous texture traps moisture, which makes it more prone to algae and mildew than smooth surfaces, especially in shaded areas or near sprinklers. In Southern California, most stucco homes benefit from a soft wash every 1 to 2 years to stay ahead of buildup. See our house and roof soft wash service for ongoing maintenance.
Get Rid of Those Algae Streaks Today
Specialized stucco soft washing across Rancho Cucamonga, Chino, Ontario and the Inland Empire.