At St. Johns Wash and Seal, we provide safe, low-pressure roof cleaning for homeowners throughout St. Johns County, removing streaks, stains, and growth left by Florida’s climate.
Those dark streaks and patches on your roof aren’t just dirt. They’re usually algae, mold, mildew, and lichen feeding on your shingles or tiles. Left alone, that growth spreads, holds moisture against the roof, and can shorten its lifespan. Cleaning it properly restores your roof’s appearance and helps protect the materials beneath.
The keyword is safe. Roofs should never be cleaned with high pressure—and that’s exactly the kind of careful work we specialize in.
St. Johns County’s heat, humidity, and frequent rain create ideal conditions for organic growth—especially on north-facing and shaded sections of a roof.
Over time, untreated growth can:
Leave black streaks and dark stains across shingles and tile
Trap moisture against roofing materials
Spread across the roof and to neighboring surfaces
Contribute to premature aging and deterioration
St. Johns County’s heat, humidity, and frequent rain create ideal conditions for organic growth—especially on north-facing and shaded sections of a roof.
Over time, untreated growth can:
Roofs should never be pressure-washed. High pressure can crack tiles, strip protective granules from shingles, force water under the roofing, and void manufacturer warranties.
Instead, we use soft washing—a low-pressure method that relies on specialized cleaning solutions to treat growth at the source rather than blasting it away.
Soft washing is ideal for:
Asphalt and architectural shingle roofs
Tile and concrete tile roofs
Metal and other delicate roofing surfaces
Because soft washing treats the growth rather than just rinsing the surface, your roof stays cleaner longer—which matters in Florida’s warm, humid climate.
Our roof cleaning targets the organic buildup that causes staining and damage, including:
Black streaks caused by roof algae
Mold and mildew in shaded, damp areas
Lichen and moss are taking root on the surface
General grime that dulls your roof's appearance
The result is a cleaner, more uniform roof—without the risks associated with aggressive methods.
Before any roof cleaning project, we take the time to prepare properly.
That includes:
Protecting landscaping, plants, and surrounding areas
Selecting the right solution and approach for your roofing material
Working carefully and methodically around your home
You shouldn’t have to worry about damaged plants, harmed roofing, or rushed work. We focus on clean results and careful execution.
Over time, algae and growth don’t just affect how your roof looks—they affect how it ages and performs.
Routine roof cleaning can:
Restore curb appeal quickly
Remove growth that holds moisture against the roof
Help your roof reach its full lifespan
Improve the look of your entire home from the street
Support long-term property value
Homeowners throughout St. Johns County choose us because of how we work—not just the services we offer.
Locally owned and operated
Family-run with professional standards
Florida-appropriate, low-pressure roof cleaning methods
Honest evaluations and clear communication
Respect for your home, time, and property
We’re here to help you maintain your home—not sell you services you don’t need.
A clean roof often inspires homeowners to refresh and protect the rest of the exterior, with services such as:
House soft washing for siding and stucco
Paver or concrete sealing
Deck or wood sealing
We proudly provide roof cleaning services in St. Johns County, including:
