Roof Cleaning in Montvale, NJ
Low-pressure soft wash that lifts black streaks, moss & algae without touching your shingles.
Roof Cleaning in Montvale, NJ
If you've noticed dark streaks running down the north-facing side of your Montvale roof, you're not imagining things. Those black stains are Gloeocapsa magma algae, and they thrive on the shaded, tree-lined lots you'll find all over town, from the properties tucked off Grand Avenue to the wooded stretches near the Saddle River County Park border. The mature oaks and maples that make Montvale so pretty also drop leaves and hold moisture against your shingles, which is exactly what algae and moss need to spread.
Gallo Bros is a family-owned exterior cleaning company here in North Jersey, and we handle roofs the right way: soft washing. We don't blast shingles with high pressure, which strips granules and voids most manufacturer warranties. Instead we use a gentle, low-pressure application that kills the algae and moss at the root, so your roof stays clean longer.
Montvale has a real mix of housing, from split-levels and colonials off Summit Avenue to newer construction near the Wegmans/Mercedes-Benz corridor along Chestnut Ridge Road. Whatever style roof you've got, we'll give you a straight answer and a fair price. No pressure, no gimmicks.
- Local crew that knows Montvale homes
- Soft-wash & low-pressure methods that protect your surfaces
- Licensed, insured & background-checked
- Upfront pricing — same-week scheduling
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Roof Cleaning near Montvale
Recent work in Montvale
Real jobs, real Montvale homes — straight from our crew's cameras.
What neighbors say
5.0 · 901+ Google reviews“Before and after photos attached. Gallo Bros Power Washing is a must. Our pavers were full of weeds which took me hours to pull out only to have to do again a week later when they grew back. With two short days, our pavers looked brand new. After the men power washed our pavers, my husband and I could barely believe they did not totally replace them haha When they arrived day 2 to fill in and sand the pavers, again we were speechless. Our yard looks completely new. We are so appreciative of the quick and professional work they did as well as the friendliness and quick responses we received. Highly recommend this service!”
Elizabeth LiPuma
“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
“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
Roof Cleaning in Montvale — FAQ
Will pressure washing damage my roof shingles?
High pressure absolutely can, which is why we don't use it on roofs. We soft wash with low pressure and a cleaning solution that kills algae and moss without stripping the protective granules off your asphalt shingles.
Why does my Montvale roof have black streaks?
Those streaks are algae that feed on the limestone filler in asphalt shingles. Montvale's shaded, tree-heavy lots keep roofs damp longer, especially on north-facing slopes, which lets the algae take hold and spread.
How long will my roof stay clean after a soft wash?
It varies with how much shade and tree cover your property has, but most homeowners see clean results last a few years. Heavily shaded lots near wooded areas may need more frequent attention than sunnier, open lots.
Do you clean gutters and siding too while you're here?
Yes. A lot of Montvale customers have us handle the roof, gutters, and a house soft wash in one visit since we're already set up. Bundling saves you a second trip and usually a bit of money.
Is the roof cleaning solution safe for my plants and lawn?
We take care to protect landscaping, pre-wetting and rinsing plants around the work area. If you have specific concerns about gardens or shrubs, tell us and we'll plan around them.
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 · 901+ 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
Rather talk it through?
(973) 500-8155info@gallobrospw.com