Black streaks, algae, moss, and lichen are destroying your roof shingles. Our ARMA-approved soft wash system safely eliminates them using low pressure and biodegradable treatments — zero shingle damage, guaranteed results across NJ.
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Professional equipment, experienced crew, and honest pricing — every single job.
Complete liability coverage on every job. You're fully protected from start to finish.
Commercial-grade machines and biodegradable detergents that deliver results lasting equipment can't.
We don't leave until you're completely thrilled. No arguments, no excuses — period.
Upfront honest pricing with zero hidden fees. You know exactly what you're paying before we start.
Those ugly black streaks running down your roof aren't dirt — they're a living organism called Gloeocapsa magma, a hardy blue-green algae that feeds on the limestone filler in your asphalt shingles. Left untreated, it spreads, traps moisture, attracts moss, and shortens your roof's lifespan by years.
Marrone Power Washing LLC removes black streaks, algae, moss, and lichen from asphalt-shingle roofs across Ocean, Monmouth, and Middlesex County, NJ — using the ARMA-approved soft-wash method that is the only manufacturer-sanctioned way to clean an asphalt roof.
High-pressure washing strips the protective granules off asphalt shingles, voids most shingle manufacturers' warranties, and can drive water under the shingles into your attic. Every major shingle manufacturer (GAF, CertainTeed, Owens Corning) and the Asphalt Roofing Manufacturers Association (ARMA) explicitly recommend low-pressure soft washing only.
We follow ARMA's published guidelines exactly: sodium-hypochlorite-based cleaning solution applied at low pressure, dwell time, then a gentle rinse.
Results are visible immediately, and continued kill of remaining spores happens with natural rainfall over the following days.
A properly performed soft wash keeps a roof streak-free for 4–6 years in our NJ climate. We offer optional zinc strip installation along ridge lines for ongoing prevention.
Five-star rated, fully insured, family-run, and ARMA-method-trained. We give honest assessments — if your roof is too damaged to clean safely, we'll tell you. We never pressure wash a shingle roof.
[Toms River], [Brick], [Lakewood], [Freehold], [Marlboro], [Manalapan], [Holmdel], [Colts Neck], [Rumson], [Wall Township]. Counties: Ocean, Monmouth, Middlesex.
We serve all of Ocean, Monmouth & Middlesex County NJ. Same-week scheduling available.
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