
Mold and mildew are notorious for appearing on a wide variety of outdoor surfaces, including siding, driveways, and patios. These green, black, or white patches aren’t just an eyesore; when left unchecked, they can damage exterior materials, create health hazards, and even reduce your property’s value.
Pressure washing is one of the most effective methods for safely and thoroughly removing mold and mildew from your property, restoring its appearance and protecting your investment. If you’re looking for a solution to your mold or mildew problem, keep reading to learn more about why this happens, what makes pressure washing so effective, and how you can banish mold and mildew for good.
Why Do Mold and Mildew Happen?
Mold and mildew are types of fungi that thrive in moist, shady environments and are commonly found on siding, decks, patios, walkways, fences, driveways, and roofs. Mildew is typically white or gray, while mold can be black, green, or even orange.
These fungi are a problem because they can cause discoloration and staining and deteriorate materials like vinyl or wood over time. Their airborne spores can even pose health risks, especially to those with allergies or other respiratory conditions.

Why Pressure Washing Is Effective for Mold and Mildew Removal
Mold and mildew can be tricky to tackle with elbow grease alone. Pressure washing provides the deep cleaning power you need to get into all the little pores and crevices to remove mold roots, not just surface stains. This creates longer-lasting results.
When performed by professionals, pressure washing can be tailored to different surfaces — for example, they may use lower-pressure soft washing for roofs and siding and turn the pressure up for more durable materials like concrete.
Furthermore, professional-grade detergents kill mold and mildew spores to more effectively prevent regrowth. Plus, many pressure washing companies use eco-friendly cleaning agents that won’t harm your landscaping or the surrounding environment.
Benefits of Professional Pressure Washing for Mold and Mildew Control
DIY pressure washing attempts can cause accidental damage to your property and may not be effective against stubborn mold and mildew. When you opt for professional pressure washing to address mold and mildew growth on your property’s exterior, you can experience a wide range of benefits, including:
- Improved curb appeal: Getting rid of buildup restores your home’s appearance, making it cleaner and fresher than ever.
- Damage prevention: Removing mold and mildew prevents long-term damage to paint, siding, decks, and roofs.
- Healthier environment: Reduced allergens and respiratory irritants mean a healthier living environment.
- Long-term results: Regular pressure washing disrupts conditions mold needs to thrive, and professional-grade cleaning products and techniques help prevent regrowth for longer.
- Knowledge and experience: Professionals know how to adjust pressure levels and choose safe cleaning solutions for each surface, avoiding water intrusion, stripped paint, and damaged materials.
- Efficiency and safety: Pros have the equipment needed to safely reach high or difficult areas and get the job done quickly.
Additional Maintenance Tips to Keep Mold and Mildew Away
If mold and mildew are a recurring problem, it’s a good idea to schedule seasonal pressure washing to stay ahead of the issue. Depending on how severe it is, you may need to seek pressure washing services once or twice a year or at the first sign that the mold or mildew is back.
Beyond pressure washing, there are a few additional things you can do to keep mold and mildew away from your property, such as trimming the trees or shrubs around problem areas to allow more sunlight and reduce the buildup of moisture. You should also keep your gutters clean to prevent water from pooling on the roof or near walls or foundations.

Keep Your Property Clean with City Wash
At City Wash, we understand how important it is to stop mold and mildew growth in its tracks. That’s why we’re proud to provide safe, efficient, and cost-effective pressure washing services to Knoxville residents to help them maintain their properties’ cleanliness and protect their outdoor surfaces from damage.
If you’ve noticed mysterious fungi growing on your property’s exterior, don’t wait until it grows out of control — contact City Wash today to get a fast, free quote and take the first step toward a cleaner, healthier home or business.

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