Soft washing uses low-pressure water (similar to a garden hose) combined with specialized cleaning solutions to safely remove algae, moss, lichen, and stains from your roof. Unlike high-pressure washing that can damage shingles, dislodge granules, force water under shingles, and void warranties, soft washing gently cleans while actually killing the organisms causing discoloration. The cleaning solutions penetrate and eliminate growth at the root, providing longer-lasting results. This method is approved by major roofing manufacturers and is the only safe way to clean asphalt shingle roofs without causing damage or shortening roof lifespan.

Those black streaks are gloeocapsa magma, a type of algae that feeds on the limestone filler in asphalt shingles. This algae thrives in humid climates and spreads through airborne spores. Green or brown patches are typically moss or lichen growth. While these organisms are primarily cosmetic issues, they can retain moisture against your roof, accelerate shingle deterioration, reduce your roof's reflectivity (increasing cooling costs), and significantly decrease curb appeal and property value. Left untreated, they spread rapidly across your entire roof. Our soft washing process kills these organisms completely, removing stains and preventing regrowth for years.

Not with proper soft washing! High-pressure washing can definitely damage shingles and void warranties, which is why we never use that method on roofs. Our soft washing technique is specifically designed to be safe for all roofing materials and is actually recommended by major manufacturers like GAF, CertainTeed, and Owens Corning. We use approved cleaning solutions and low-pressure application that won't dislodge granules, lift shingles, or force water underneath. In fact, regular soft washing extends roof life by removing damaging organisms. We're fully insured and have cleaned thousands of roofs without incident or warranty issues.

We safely clean all types of roofing materials including asphalt shingles (3-tab and architectural), metal roofing, tile roofs (concrete and clay), slate roofing, cedar shake and wood shingles, rubber and TPO commercial roofing, and composite shingles. Each material requires slightly different cleaning solutions and techniques—what works for asphalt may not be suitable for tile or metal. Our technicians are trained to identify your roof type and use the appropriate method to achieve optimal results without damage. We also clean roof features like skylights, vents, chimneys, and gutters as part of comprehensive roof maintenance.

Results typically last 3-5 years, sometimes longer depending on environmental conditions. Our soft washing solutions don't just remove stains—they kill algae, moss, and lichen at the root and continue working after we leave, preventing immediate regrowth. Homes in heavily shaded areas, humid climates, or surrounded by trees may see regrowth sooner and might benefit from cleaning every 2-3 years. North-facing roof sections that receive less sun typically stay cleaner longer. We can apply preventative treatments that extend results even further. Regular maintenance is far less expensive than waiting for severe growth that requires more aggressive treatment or premature roof replacement.

Yes, when done properly with the right precautions! We take extensive measures to protect your property including pre-wetting all plants, shrubs, and grass around your home, covering sensitive vegetation with protective tarps, collecting and rinsing runoff away from landscaping, using plant-safe, biodegradable cleaning solutions, and thoroughly rinsing all surfaces after treatment. We also protect gutters and downspouts, though our solutions are designed to be safe for gutter systems. After cleaning, we do a final rinse of all landscaping. We've performed thousands of roof cleanings without harming plants or lawns because we follow proper protocols and use professional-grade products designed for safe roof cleaning.

Absolutely! Algae, moss, and lichen don't just look bad—they actively damage your roof. Moss retains moisture against shingles, causing rot and accelerating deterioration. Algae breaks down shingle materials and reduces their protective granule layer. These organisms can shorten roof life by 5-10 years if left untreated. Regular soft washing removes these damaging elements, allowing your roof to reach or exceed its expected lifespan. Many homeowners who thought they needed a $15,000-$30,000 roof replacement discover that a $400-$800 cleaning restores their roof's appearance and integrity. It's one of the best investments you can make in your home's exterior maintenance.

Most residential roofs can be cleaned in 2-4 hours depending on size, pitch, and severity of growth. Single-story homes with simple roof lines take less time, while two-story homes or complex roof designs with multiple valleys, dormers, and angles require more time. Severely stained roofs with heavy moss or lichen may need extra treatment time. The cleaning solution begins working immediately but may take 15-30 minutes to fully activate. We then rinse thoroughly to ensure all dead organisms and cleaning agents are removed. Your roof will look dramatically better immediately, with continued improvement over the next few days as the treatment continues working.

No, you don't need to be home! As long as we have access to an outdoor water source and can reach all sides of your house to protect landscaping, we can complete the work while you're away. We do ask that you close all windows, skylights, and attic vents, and keep pets indoors during service. We'll communicate our arrival time, notify you when we're finished, and provide before/after photos so you can see the results. Many homeowners prefer to be away during cleaning to avoid any inconvenience. However, if you'd like to be present to discuss specific concerns or see the transformation firsthand, we're happy to accommodate that as well.

Pricing depends on your roof's size, pitch, complexity, and condition. Most single-story homes (1,500-2,500 sq ft of roof) range from $350-$600. Two-story homes (2,500-4,000 sq ft) typically cost $500-$900. Factors affecting price include roof height and steepness, extent of algae, moss, or lichen growth, roof complexity (dormers, valleys, multiple planes), accessibility and surrounding obstacles, and whether you bundle with other services like gutter cleaning or house washing. Steep roofs or those requiring special safety equipment may cost more. We provide free estimates with transparent pricing and no hidden fees. Most homeowners find roof cleaning far more affordable than replacement and an excellent investment in home value and curb appeal.