Roof Cleaning in St. Petersburg & Tampa Bay, FL

Black streaks, green algae, and dark staining on your roof are more than cosmetic issues — they're signs of biological growth that actively degrades your roofing materials and shortens the life of your roof. In Florida's warm, humid climate, algae (particularly Gloeocapsa magma) and moss spread rapidly across roof surfaces, holding moisture against shingles and tiles that leads to premature deterioration. Caldwell Clean's professional roof cleaning service eliminates these organisms safely and effectively, without the high-pressure damage that power washing can cause to roofing materials.

We use a proven soft-wash technique — applying a biodegradable, low-toxicity cleaning solution at low pressure that kills algae, mold, lichen, and moss at the root level. This approach, recommended by roofing manufacturers and the ARMA (Asphalt Roofing Manufacturers Association), is safe for all common roofing materials including asphalt shingles, clay and concrete tiles, metal roofing, and flat roof membranes. Unlike pressure washing, soft washing does not strip granules from shingles or damage tiles.

Our St. Petersburg roof cleaning clients regularly see the results preserved for years, as our treatment eliminates the biological growth completely rather than just surface-washing it. We serve residential and commercial properties throughout Pinellas, Hillsborough, Manatee, and Sarasota counties — helping homeowners and property managers protect their roofing investment and restore their property's curb appeal.