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Learn How to Clean Your James Hardie Siding

How to clean your James Hardie Siding tips 2023

Expert Advice from C&W Roofing, Siding & Window Co., your trusted partner in the Greater Greenville, SC, area.

One of the many reasons we recommend James Hardie siding to our customers is that it’s a low-maintenance material. To keep it looking great, all you need to do is clean it once or twice per year. 

James Hardie siding is a favorite choice for homeowners throughout Upstate South Carolina. Its combination of style, durability, and low maintenance makes it a standout option for homes in the Greenville area. From withstanding summer heat and humidity to enduring winter rains, James Hardie siding is built to perform in our region’s climate.

That said, even the toughest materials benefit from a little TLC. With regular cleaning, you can keep your siding looking beautiful and ensure it stays in top condition for years to come.


Why Cleaning Your Siding is Essential

Protecting Your Investment

Though James Hardie siding is designed to resist rot, moisture, and warping, dirt and grime can still accumulate over time. The humid conditions in Greenville, Simpsonville, and surrounding areas make it especially important to address potential mold and mildew growth. Routine cleaning clears surface buildup and helps your siding continue to protect your home effectively.

Elevating Your Home’s Exterior

Nothing diminishes a home’s appearance faster than dirty or stained siding. Regular cleaning restores the fresh, vibrant look that James Hardie siding is known for, boosting your home’s curb appeal. Whether you’re hosting guests or preparing to sell, clean siding ensures your home leaves a positive impression.

Stylish gray james hardie siding

How Often Should You Refresh Your Siding?

The low-maintenance nature of James Hardie siding means you don’t have to clean it frequently. For homes in the Greenville area, we recommend cleaning it every 12–24 months. This schedule helps prevent dirt buildup and keeps your home looking pristine with minimal effort.

Steps to Keep Your Siding Looking Like New

Gentle Washing Techniques

To clean James Hardie siding without causing damage, skip the pressure washer and stick to these safe and effective steps:

  1. Initial Rinse: Use a garden hose to wash away loose dirt and debris.
  2. Create a Cleaning Solution: Mix warm water with a mild dishwashing soap for an easy DIY cleaner.
  3. Scrub Gently: Using a soft cloth or a brush with soft-to-medium bristles, gently clean the siding in sections. Work from the bottom up to prevent streaking.
  4. Final Rinse: Thoroughly rinse each section with water before the soap has a chance to dry.

Dealing with Mold or Mildew

South Carolina’s warm, humid environment can create the perfect conditions for mold and mildew growth. Here’s how to handle it:

  1. Mix a solution of one gallon of water and one cup of oxygen bleach.
  2. Apply it to the affected areas and let it sit for 5–10 minutes.
  3. Scrub the area with a soft brush or cloth, then rinse thoroughly.
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Choosing the Right Products for Your Siding

DIY Cleaning Solutions

For most routine cleaning tasks, homemade solutions are cost-effective and safe:

  • Soap-Based Cleaner: A mixture of water and dish soap is effective for general grime.
  • Bleach-Based Cleaner: Oxygen bleach is great for tackling tough stains like mildew, but avoid chlorine bleach to protect your landscaping.

Store-Bought Products

If stubborn stains persist, you may need a commercial cleaner specifically designed for siding. For recommendations tailored to James Hardie siding, contact C&W Roofing, Siding & Window Co. We can guide you to the best products for your needs.

Expert Help for Your Siding Questions

At C&W Roofing, Siding & Window Co., we take pride in helping homeowners across Greenville, Greer, and Simpsonville care for their homes. Whether you’re looking for guidance on maintaining your siding or considering a full exterior remodel, we’re here to provide expert advice and quality service.

Let’s Talk About Your Next Project

Thinking about upgrading your home’s siding, windows, or roofing? We offer no-obligation consultations to assess your needs and recommend the best solutions for your home.

Call 864-772-3833 or contact us online. to schedule your consultation today. Together, we’ll keep your home looking its best for years to come!