Black streaks, algae, and moss are doing real damage to your roof. Halo Pressure Washing uses the safe, proven soft wash method to restore your roof and protect its lifespan — without voiding your warranty.
Using a pressure washer on a roof is one of the most damaging things you can do to it. High-pressure water strips granules from asphalt shingles, voids manufacturer warranties, and can force water under tiles or into seams — leading to leaks and expensive repairs. Many roofing manufacturers explicitly state that high-pressure cleaning will void your warranty.
The correct method is soft washing: low-pressure application of biodegradable cleaning solutions that kill algae, moss, lichen, and mold at the root. The result is a thorough clean that lasts 2–5 years without causing any damage to your roofing material.
At Halo Pressure Washing, Carter and our team are trained exclusively in soft wash roof cleaning. We never use high-pressure on roofs — period. We serve Raleigh and surrounding Triangle communities from our base in Fuquay-Varina, and we stand behind every job we do. Call (910) 538-6552 for a free estimate.
Those dark streaks running down your shingles aren't just dirt — they're Gloeocapsa magma, a type of algae that feeds on the limestone filler in asphalt shingles. Left untreated, it spreads across your entire roof, making your home look decades older than it is. But the visual impact is just the beginning.
Algae growth holds moisture against your shingles, accelerating deterioration and shortening your roof's lifespan. Moss and lichen do even more damage — their root systems physically break down shingle material over time. In Raleigh's humid, wooded environment, these organisms thrive. Most roofs in the Triangle area develop visible growth within 5–10 years of installation.
The good news: a professional soft wash treatment removes all of it and includes an algae inhibitor that slows regrowth significantly. It's far less expensive than a premature roof replacement.
We walk the property, assess the roof type and condition, identify problem areas, and pre-wet surrounding landscaping to protect plants and grass during the cleaning process.
We apply our professional-grade, biodegradable cleaning solution at low pressure to the entire roof surface. The solution penetrates and kills algae, mold, moss, and lichen at the cellular level.
We allow the solution to dwell on the surface for the appropriate amount of time, letting the chemistry do the work without any abrasive scrubbing or high-pressure blasting.
After dwell time, we rinse the roof at low pressure, washing away all dead organic material. The result is a dramatically cleaner roof with no damage to shingles, tiles, or seams.
We inspect the results, rinse down gutters and downspouts, clean up any overspray, and ensure you're completely satisfied before we leave.
Different roofing materials require slightly different approaches. We know each one.
The most common roof in Raleigh. Asphalt shingles are susceptible to Gloeocapsa magma algae (those black streaks) and moss. Our soft wash solution kills growth without stripping protective granules — keeping your roof warranty intact and extending its service life.
Metal roofs develop oxidation, algae, and mildew staining over time. We use appropriate cleaning solutions that address these issues without etching or damaging the finish. Metal roofs respond beautifully to soft wash treatment and look nearly new afterward.
Clay and concrete tile roofs in Raleigh accumulate moss and lichen that can crack tile if left unchecked. Our soft wash process removes all growth safely without disturbing the mortar, ridge caps, or tile placement. We take extra care around fragile tile surfaces.
Roof cleaning in Raleigh typically ranges from $300 to $500 for an average-sized home, depending on several factors:
Larger roofs require more solution and time. We measure your roof's square footage to provide an accurate quote, not a vague estimate.
Steeper roofs require additional safety equipment and time. A low-slope roof is quicker to service than a steep 12/12 pitch.
Heavy moss or lichen infestations may require additional treatment passes. We assess this upfront so there are no surprises.
Every quote from Halo Pressure Washing is free, transparent, and locked in before we start. Call (910) 538-6552 or fill out our contact form to get your estimate. We serve Raleigh, Cary, Apex, Holly Springs, Fuquay-Varina, Garner, Angier, and the surrounding Triangle area.
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