Algae
Removal
Soft wash algae removal for stucco, siding, concrete and roofs across the Inland Empire. We kill green and black algae at the root so it stays gone longer.
Algae Removal That Lasts Longer
Southern California's mix of marine-layer moisture, shade, and irrigation overspray creates ideal conditions for algae to take hold on exterior surfaces. Those green patches and black streaks are living growth, and rinsing the surface alone only knocks back what you can see. Our treatment kills the algae at the root so it stays gone longer.
🌱 Why Algae Keeps Coming Back
If a contractor just blasts the surface with water, the algae spores stay behind and regrow within weeks. We apply biodegradable cleaning solutions that kill the growth at the cellular level, then rinse, so the surface stays cleaner far longer than a quick wash.
Where Algae Shows Up
Algae loves shaded, damp spots: north-facing walls, areas under trees, surfaces hit by sprinkler overspray, and anywhere water lingers. It appears as green film, dark patches, or the black streaks common on stucco and roofs (a hardy algae called Gloeocapsa Magma).
Surfaces We Treat for Algae
- Stucco walls and home exteriors
- Painted siding and fiber cement
- Concrete walkways, patios and driveways
- Tile and shingle roofs
- Fences, block walls and retaining walls
Safe for Your Home & Landscaping
We use biodegradable, eco-friendly cleaning solutions that are safe for plants, pets and people. We pre-wet all landscaping before application and rinse thoroughly after treatment. For roofs specifically, see our dedicated roof soft washing service.
Algae Removal Questions
What's the best way to remove algae from exterior surfaces?
A professional soft wash with biodegradable cleaning solutions. The chemistry kills the algae at the root rather than just rinsing the surface, which is why it stays gone longer. See our full guide on how to remove algae from stucco.
Why does algae keep coming back after cleaning?
Because a surface rinse leaves the spores behind. If the growth isn't killed at the root, it regrows within weeks. Our treatment targets the algae at the cellular level so the surface stays clean far longer. Learn more about why stucco turns black.
Will pressure washing remove algae safely?
On hard surfaces like concrete, controlled pressure can help, but on stucco, siding, and roofs, high pressure causes damage and still leaves spores behind. Soft washing is the safer, longer-lasting choice for those surfaces. See whether pressure washing damages stucco.
Is your algae treatment safe for plants and pets?
Yes. We use biodegradable, eco-friendly solutions and pre-wet all landscaping before application, then rinse thoroughly afterward. It's safe for plants, pets and people.
How much does algae removal cost?
Algae removal in Southern California starts at $200 and goes up based on the size of the area and how much growth has built up. Every quote is free, and we walk the property with you before pricing the job. See our full soft washing cost guide.
Get Rid of That Algae for Good
Soft wash algae removal across Rancho Cucamonga, Chino, Ontario and the Inland Empire.