Pressure Washing Tips for Savannah's Humid Climate

Living in Savannah means enjoying the charm of Spanish moss, warm coastal breezes, and one of the most beautiful cities in the South. But Savannah's subtropical climate — with average humidity levels hovering around 70-80% year-round — also means your property is constantly battling moisture, mold, mildew, and algae growth.

Why Humidity Is Your Property's Biggest Enemy

Chatham County receives about 49 inches of rain per year, and summer temperatures regularly push past 90°F with dew points in the 70s. This combination creates ideal conditions for biological growth on exterior surfaces. You'll notice green and black streaks on siding, dark stains on concrete driveways, and fuzzy mold growth on shaded fences — sometimes within just a few months of the last cleaning.

Properties near the coast — in areas like Tybee Island, Skidaway Island, and The Landings — face even more challenges from salt spray, which can accelerate deterioration of untreated surfaces.

How Often Should You Pressure Wash in Savannah?

For most Savannah homes, we recommend exterior cleaning at least once a year — ideally in early spring before the heaviest humidity sets in. Homes with significant shade from live oaks or on the north side of buildings may need cleaning every 6 to 8 months.

Commercial properties with high foot traffic — restaurants on River Street, storefronts on Broughton, and office parks in Pooler — benefit from quarterly sidewalk and entrance cleaning to maintain a welcoming appearance.

Pressure Washing vs. Soft Washing: Know the Difference

Not every surface should be hit with high pressure. Here in Savannah, where many homes feature delicate materials like historic brick, painted wood siding, and stucco, soft washing is often the better choice. Soft washing uses low-pressure water combined with specialized cleaning solutions that kill mold, moss, and bacteria at the root — providing results that last up to two years on vinyl and aluminum siding.

High-pressure washing is ideal for durable surfaces like concrete driveways, sidewalks, parking lots, and unfinished brick. Always use a professional who understands which method is appropriate for each surface.

Tips to Prepare for Pressure Washing

• Close all windows and doors before cleaning begins
• Move vehicles out of the driveway to avoid overspray
• Remove window screens if accessible
• Cover outdoor electrical outlets
• Cover delicate plants near the house with plastic bags or tarps
• Keep pets indoors during the washing process

The Bottom Line

In a climate like Savannah's, regular exterior cleaning isn't just cosmetic — it's preventive maintenance. Mold and mildew left unchecked can cause permanent staining, accelerate paint deterioration, and even contribute to wood rot. A professional cleaning once or twice a year is one of the best investments you can make in your property's longevity and curb appeal.