Can Fence Restoration Remove Algae and Mildew?

The short answer is yes. Professional fence restoration is highly effective at removing algae, mildew, and biological growth, restoring your fence to its original beauty while extending the life of the wood. At Drift Exteriors, we specialize in safe, wood-friendly restoration techniques that tackle these issues without the risks associated with DIY power washing.

What Causes Algae and Mildew on Fences?

Biological growth on fences thrives in specific conditions. Algae and mildew feed on organic matter trapped in the wood grain, often appearing as green, black, or grey discoloration. Several factors contribute to this growth:

• Moisture Retention: High humidity levels or frequent precipitation create the perfect breeding ground for spores.
• Lack of Sunlight: Shaded areas of your yard inhibit the drying process, leaving wood damp for extended periods.
• Debris Accumulation: Leaves, dirt, and organic mulch trapped against the base of your fence provide a constant food source for fungal growth.

The Colorado Context

Northglenn homeowners face unique challenges regarding fence maintenance. North-facing fences, in particular, remain in the shade throughout the day, preventing them from drying out efficiently. Additionally, our unpredictable spring snowmelt keeps fence pickets saturated for weeks, while automated lawn sprinkler systems often cause consistent overspray at the base of the fence. This constant cycle of wetting and drying makes Colorado fences especially prone to stubborn algae and mildew buildup.

The Professional Restoration Process

Many homeowners make the mistake of using high-pressure washing to clean their fences. This is a significant error; high-pressure water can gouge soft wood, splinter fibers, and drive moisture deeper into the grain. Drift Exteriors utilizes a superior soft-wash approach:

• Solution Application: We use eco-friendly cleaning agents, such as sodium hypochlorite or sodium percarbonate, which are designed to break down biological growth at the molecular level rather than just blasting it off.
• Low-Pressure Rinse: Once the solution has dwelled and neutralized the organic contaminants, we perform a low-pressure rinse to wash away the algae and mildew.
• Agitation: For deep-set stains or stubborn patches, we use specialized brushes to gently agitate the surface, ensuring the wood remains undamaged.

Why Restoration is Essential for Staining

Restoration is more than just cleaning; it is a critical preparation step. If you attempt to apply stain over algae or mildew, you are essentially sealing those contaminants into the wood. This will result in a blotchy appearance and premature stain failure. By allowing the Drift Exteriors team to properly clean and neutralize the wood fibers, we ensure a clean, porous surface that is primed to absorb stain evenly, providing your Denver fence with long-lasting protection against the harsh mountain sun and seasonal moisture.

Learn more about our fence restoration services.