If you’ve noticed green stains creeping up your home’s siding, you’re not alone. In Summerville, SC, many homeowners deal with algae buildup—especially during the damp, cooler months of fall and winter. Left untreated, algae can stain your siding, promote mold growth, and make your home look neglected.

What Causes Green Algae on Siding?

That green film showing up on your home’s siding? It’s typically algae—most often Gloeocapsa Magma. This is a common issue in Summerville, thanks to our local climate and environment.

Key causes of algae growth:

  • Moisture from rain, fog, and high humidity
  • Shaded areas that don’t dry quickly
  • Pollen, dust, and dirt that feed organic growth
  • Nearby trees or dense landscaping that block sunlight

PAA Q: What is the green stuff on my siding?
The green stuff is usually algae, often mixed with mildew or mold. It appears in areas that are frequently damp or shaded and can stain siding if not properly removed.


Why Fall and Winter Make Algae Worse

You may expect algae to thrive in summer, but it’s often worse during fall and winter when dampness lingers and cleaning tasks get delayed.

Here’s why:

  1. Shorter days and less sunlight reduce natural drying.
  2. Falling leaves block gutters and trap moisture on siding.
  3. Cold temperatures slow evaporation, allowing algae to thrive.
  4. Homeowners tend to delay maintenance during the holidays.

When ignored, this seasonal growth can set in deeply and become harder—and more expensive—to clean come spring.

For better prevention, schedule fall gutter cleaning with Soft Wash Pros to reduce the water that feeds algae growth.

PAA Q: Is it okay to pressure wash siding in cold weather?
Pressure washing in cold weather can damage surfaces if water freezes. Soft washing is a safer option year-round, especially in cooler months.


Why Soft Washing is the Best Way to Remove Algae

Pressure washing blasts surfaces with high-pressure water. While that might seem like a quick fix, it often causes more damage than it prevents—especially on vinyl siding or painted surfaces.

Soft washing is a gentler, more thorough solution.

Why soft washing works better:

  • Uses low-pressure water with cleaning agents to break down algae
  • Doesn’t strip paint, damage siding, or force water behind walls
  • Kills algae at the root to prevent regrowth
  • Safe for delicate surfaces like wood, vinyl, and stucco

Unlike many local companies that claim to “soft wash” but actually use pressure washers, Soft Wash Pros uses true soft wash systems that are designed specifically for residential exteriors.

PAA Q: Does soft washing really work on algae?
Yes. It removes surface algae and kills its spores, helping prevent future growth. The results are longer-lasting compared to traditional pressure washing.


The Risks of Ignoring Green Algae

Green algae isn’t just unsightly—it can lead to long-term damage if left alone.

Here’s what happens when you don’t deal with it:

  • Permanent staining on siding
  • Moisture buildup that causes wood rot or mold
  • Decreased curb appeal and home value
  • Increased allergy symptoms from mold spores
  • Overflowing gutters that cause water damage

In many cases, algae is a warning sign that water is being trapped around your home’s exterior—often due to clogged gutters or improper drainage. It’s not just a cleaning issue; it’s a maintenance priority.

PAA Q: Can algae damage vinyl siding?
Yes. Over time, algae can degrade vinyl siding, especially when it’s combined with trapped moisture or mold. Regular cleaning helps protect your home’s exterior.


How Soft Wash Pros Can Help

At Soft Wash Pros, we specialize in soft washing, gutter cleaning, roof washing, and full exterior restoration services in Summerville and surrounding areas. Our trained professionals know how to safely clean your siding, roofing, and gutters without causing damage.

Here’s what you can expect from us:

  • Safe, low-pressure washing customized for your home
  • Eco-friendly cleaning agents that break down algae and mold
  • Long-lasting results that help your home stay clean longer
  • Friendly, local service from a trusted Summerville company
  • Seasonal maintenance plans available

Our Safe Wash method is ideal for treating algae, mildew, mold, and other organic growth on siding, roofs, and more.

PAA Q: How much does it cost to soft wash a house?
Pricing depends on the size and condition of the home, but soft washing is typically affordable and cost-effective when you consider the long-term benefits. Contact us for a free estimate.


Reclaim Your Curb Appeal Today

If you’re seeing green on your siding, now is the time to act. Soft Wash Pros is Summerville’s trusted choice for soft washing and exterior cleaning services.

Don’t wait until the problem spreads or becomes permanent. Call us today to get your home looking fresh and clean.

Protect your investment. Restore your curb appeal. Choose Soft Wash Pros.