Your siding does more than add curb appeal—it protects your home from wind, rain, sun, and everything in between. But over time, it can collect dirt, algae, mildew, and other stains that dull its appearance and shorten its lifespan. That’s why knowing how to clean siding properly is an important part of home maintenance.
At The Exteriors Company, we’ve seen firsthand how improper cleaning methods can do more harm than good. Here’s how to safely keep your siding looking its best without causing damage.
What You’ll Need
Before you get started, gather the right tools:
- Garden hose with a spray nozzle
- Soft-bristle brush or siding cleaning attachment
- Bucket with warm water
- Mild detergent or a siding-safe cleaner
- Optional: white vinegar for mildew, oxygen bleach for tougher stains
Avoid using harsh chemicals, wire brushes, or high-pressure settings on most siding materials.
Vinyl Siding Cleaning Tips
Vinyl siding is one of the easiest types to clean. Use a gentle mixture of water and dish soap or vinegar. Start at the bottom and work your way up to avoid streaking, then rinse from top to bottom.
Avoid: High-pressure washers on seams or edges—they can force water behind the panels, causing mold or structural damage.
Fiber Cement & Engineered Wood Siding
These materials are more durable, but still benefit from careful cleaning. Use a soft brush and mild soap.
Avoid: Soaking the siding or using abrasive scrubbers, which can damage the finish or sealants.
Watch for Mold, Mildew, and Algae
In shaded or damp areas, you may notice green or black staining. White vinegar or a siding-safe cleaner with mold-fighting ingredients can help remove and prevent future growth.
How Often Should You Clean?
Most homes benefit from a siding wash once or twice a year—usually in spring and again in fall. If your home is surrounded by trees or near a lake, more frequent cleaning may be needed to prevent buildup.
Regular siding maintenance doesn’t just make your home look better—it helps it last longer. If you’re unsure how to clean your siding safely or spot damage while cleaning, our team at The Exteriors Company is here to help.
Contact us today for a siding inspection or professional maintenance quote.