Gallo Bros Power Washing

Roof Cleaning in Roseland, NJ

Low-pressure soft wash that lifts black streaks, moss & algae without touching your shingles.

Roof Cleaning in Roseland, NJ

If you drive through Roseland's neighborhoods off Eagle Rock Avenue or Harrison Avenue, you'll spot it on plenty of roofs: those dark streaks running down the shingles. That's not dirt and it's not permanent damage — it's a type of algae (Gloeocapsa magma) that thrives in the humid North Jersey summers and holds moisture through our long, wet springs. Roseland has a lot of colonials, split-levels, and newer developments with asphalt shingle roofs, and the shaded, tree-heavy lots common around here make those north-facing roof planes especially prone to it.

Gallo Bros is a family-run exterior cleaning company, and for roofs we use **soft washing** — low-pressure application, not a pressure washer. High pressure strips the protective granules off asphalt shingles and voids most manufacturer warranties. Soft wash uses a gentle cleaning solution that kills the algae and rinses clean, so the streaks are gone and your roof isn't beaten up in the process.

We cover Roseland and the surrounding Essex County towns. If you want a straight answer on whether your roof actually needs cleaning or just a look, we'll tell you honestly. No pressure, no upsell — just a clear quote.

  • Local crew that knows Roseland homes
  • Soft-wash & low-pressure methods that protect your surfaces
  • Licensed, insured & background-checked
  • Upfront pricing — same-week scheduling
Roof Cleaning in Roseland, NJ

Recent work in Roseland

Real jobs, real Roseland homes — straight from our crew's cameras.

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What neighbors say

5.0 · 882+ Google reviews

Gallo Bros did an amazing job power-washing my home and roof. They assured me that if I had any concerns they would avail themselves to resolve them. After the cleaning a few leaves blocked the gutter after a heavy rain. They responded quickly and courteously, removing the blockage touched up ,y skylights as well. Before leaving they made sure I was satisfied. Oscar and his team came a few weeks later and sanded and sealed my paver walkway. They were polite and professional, explaining what they were doing, how long it would take, and instructions to ensure the best possible result. What I loved most was the professionalism in their communication. There were several days that we were rescheduled due to heavy rains and storms. The first thing they assured us of was their intent to make sure the job was done correctly. They would not come out to do the work, only to have it washed away. They stayed in contact every step of the way and I felt more than comfortable that the job would get completed the right way. If they couldn’t reach h me by phone they always left a voicemail or sent a text. I just happened to call them first in my search for roof cleaning, but I will never have to look further for these services again. I was really so impressed. Thank you Gallo Bros!

Kim Wells

I wanted power wash my backyard deck for a long time but they said it cannot be done due to the equipment was not accessible however Gallo Brothers had very long 400feet hose and did the power wash which was not done for many years. I am very happy they did a very good job specially Mark was very helpful to do front porch and walkway. It is speck clean this is exactly what I wanted to do. I do highly recommend Gallo Bothers meticulous job.

Chong Cho

Awesome experience. I called and left a message over a weekend, they called me back quickly and schedule appointment. Lucas showed up on time dress in press shirt and paints with a iPad taking notes and pictures. Provided a very reasonable quote and scheduled appointment. The truck 3 team showed up earlier than scheduled and could not have been any nicer. The had a small problem with gear and let me know. Ther office also called and apologized to inform me of the problem. Truck 3 team came back and finished the job. The job they did was excellent. You can see on before pictures I had staining around window where shutters were installed. The after picture you can hardly tell. Super professional, kind and fair price. Wish all vendors were as professional and trustworthy as worthy as Gallo Bros is.

james Flatt

Roof Cleaning in Roseland — FAQ

What are the black streaks on my Roseland roof?

It's roof algae, not mildew or dirt. It's extremely common in humid North Jersey, especially on north-facing and tree-shaded roof sections. It won't wash off with rain, but soft washing removes it.

Will roof cleaning damage my shingles?

Not the way we do it. We soft wash with low pressure and a cleaning solution rather than blasting the roof. High-pressure washing can strip shingle granules and shorten your roof's life, which is why we don't use it on roofs.

How long before the algae comes back?

It varies with shade and tree cover, but a proper soft wash typically keeps a roof clean for a few years. Roseland's tree-heavy lots can shorten that on shaded roofs, so we'll give you a realistic expectation for your specific home.

When is the best time to clean a roof in NJ?

Spring through fall works well. We avoid freezing conditions. Many Roseland homeowners book after winter to clear off buildup, or in early fall before the leaves drop.

Do you service the rest of Essex County?

Yes. Along with Roseland we clean roofs in nearby towns across North Jersey. Reach out with your address and we'll confirm we cover you.

How much does roof cleaning cost in NJ?

It ranges widely — from a few hundred dollars for a small ranch to several thousand for a large, steep or complex roof. Size, pitch, material, access and how much algae has built up all factor in. You get a firm price up front, free.

Will roof cleaning damage my shingles?

No. We soft wash with low pressure and a cleaning solution — the method asphalt-shingle makers recommend. High-pressure washing is what damages roofs; we never do that on a roof.

What are the black streaks on my roof?

That's a hardy algae called Gloeocapsa magma. It feeds on the limestone in your shingles and spreads in New Jersey's humidity. Soft washing kills it at the root, not just the surface.

How long does a roof cleaning last?

Usually 2–4 years. Because soft washing kills the algae instead of just rinsing it, the clean lasts far longer than a quick power-rinse.

North Jersey · 882+ five-star reviews

Pick your own time

Choose a slot that actually suits you and it's confirmed on the spot — no phone tag, no waiting on a callback.

  • A real person comes out and prices the work in front of you
  • Exact price before anything starts, in writing
  • Free, and there's no obligation to book the job
5.0 · 882+ Google reviews

Rather talk it through?

(973) 500-8155info@gallobrospw.com

Ready for the cleanest property on the block?