Roof Washing in Bergen County, NJ

Those black streaks, green patches, and crusty spots on your roof are not just dirt. They are living growth feeding on your shingles, and left alone they shorten the life of your roof. Our non-pressure soft washing kills the algae, moss, and lichen at the root and brings your roof back to its true color, safely, without the high-pressure water that wrecks roofing materials. We are NJ-licensed and based just across the state line in Nanuet, minutes from Bergen. Before you spend on a new roof, find out whether yours just needs to be cleaned.

Established

1979

4.9

Google Rated

Homes Served

10k+

NJ Licensed & Insured

Trusted by homeowners since 1979

Complete Roof Washing Services in Bergen County

Bergen has more towns than any county in New Jersey, and the roofs are every bit as varied as the towns.

From the slate and copper of Alpine and Saddle River estates, to the Victorians and Tudors of Ridgewood, Ho-Ho-Kus, and Tenafly, to the asphalt shingles on a Paramus split-level, to the flat and low-slope roofs of the two-families in Fort Lee and Cliffside Park, this is a county full of roofs that demand the right touch. Many of these materials are delicate, older, and expensive to replace. The wrong cleaning method does not just fail to clean them. It damages them.

That is why we never pressure wash. An Alpine estate is not a Fort Lee two-family. A Ridgewood Victorian is not a postwar ranch in Bergenfield. The right way to clean a roof starts with understanding the roof beneath the grime.

That’s local knowledge. That’s Bergen County roof washing. That’s A&J Reliable.

What Bergen Does to a Roof

Mature tree canopy. The leafy older towns and the wooded Ramapo foothills in the northwest, from Wyckoff and Franklin Lakes to Mahwah and Oakland, keep roofs shaded and damp. North-facing slopes grow moss and algae, gutters clog, and leaf debris traps moisture against the shingles. This is the biggest single driver of roof growth in the county.
Humid summers. Long, humid North Jersey summers feed Gloeocapsa magma, the blue-green algae behind those black streaks. Once a few spores land, it multiplies and spreads across the whole roof.
Snow, ice, and freeze-thaw. Bergen winters bring snow and a constant melt-and-refreeze cycle. Moss holds moisture against the roof through the cold, and that trapped water makes freeze-thaw damage worse.
Nor'easters and the Hudson edge. The Palisades towns along the river, from Edgewater and Fort Lee to Englewood Cliffs, take wind-driven rain that drives moisture into every shaded seam and feeds growth long after the storm passes.

What This Means for Your Roof Washing

We do not quote a roof wash off a photo. On a Bergen home we look at the roofing material first, because slate, cedar, copper, and asphalt each call for a different approach. We identify whether you are dealing with algae, lichen, moss, or all three, since lichen and moss root in and take longer to clear. We look at the pitch, the shaded slopes, the landscaping we need to protect, and the age of the materials underneath. Then we clean it the right way for that specific roof.

Four reasons Bergen County homeowners have trusted us with their roofs since 1979.

More than four decades of residential roofing and roof care across NJ, NY, and CT, with a process built around the families living underneath.

Specialists, not generalists.

More than four decades cleaning and roofing the specific houses Bergen is built from. We know how to soft wash a slate roof, a cedar roof, and a delicate copper accent without harming any of them.

We build relationships, not transactions.

Most of our Bergen work comes from homeowners we have served before, and from their neighbors. That is the standard: the kind of work that earns the next call on your street.

Forty-plus years of proof.

Thousands of tri-state homes since 1979. Read the testimonials, check the reviews, drive past the work. The track record speaks louder than any sales pitch.

A safe, proven cleaning system.

We use only non-pressurized, biodegradable cleaners that kill algae, moss, and lichen at the root. Powerful, effective, and safe for your roof, your landscaping, and your home. NJ-licensed and backed by our 2-year warranty.

Why a clean roof is worth it in Bergen.

A roof wash is one of the least expensive things you can do for your home, and one of the most worthwhile. Here is what it does for your Bergen County home.

The #1 Reason Homeowners Call Extend the Life of Your Roof

Add Years · Avoid Premature Replacement

Algae, moss, and lichen feed on your shingles and the granules that protect them. Left untreated, they shorten the life of the roof and can push you toward a replacement years too early. Killing the growth at the root protects what you already have and helps your roof reach its full lifespan.

Instant Curb Appeal Restore Your Roof's Original Color

Immediate, Visible Results

The black streaks and stains come off, and your roof returns to the color it was meant to be. The algae is gone by the time our truck leaves your property. The difference from the street is dramatic, and it is the fastest way to refresh the look of your whole home.

Protect Your Investment Add Value at Appraisal or Sale

Higher Resale Appeal

In a market as competitive as Bergen’s, a clean roof signals a well-kept home. A stained, mossy roof makes buyers and appraisers wonder what else was let go. A roof wash is a small cost that protects the value of one of your largest assets.

Lower Your Energy Bills Reduce Summer Cooling Costs

Energy Savings

Those dark algae stains absorb heat and drive up the temperature in your attic and home. Removing them helps your roof reflect heat the way it should, which can ease the load on your cooling through a humid North Jersey summer.

Stop the Damage at the Root Kill Algae, Moss, and Lichen for Good

Prevent Rapid Regrowth

Blasting growth off the surface leaves the spores behind, so it grows right back. Our non-pressure method kills the spores and roots, so the roof stays clean far longer. It protects the shingle granules and keeps you on the right side of your manufacturer warranty.

A Healthier Home Exterior Control Mold and Mildew

Cleaner Roof and Surfaces

Roof growth does not stay on the roof. It spreads to siding, walkways, and shaded exterior surfaces. A proper roof wash helps control mold and mildew across the exterior of your home, not just the shingles.

If your roof needs washing?

If you can see streaks, green patches, or crusty growth from the street, it is already taking hold. The best first step is a free inspection.

OUR ROOF WASHING PROCESS

Four steps from first call to final rinse. Since 1979, every Bergen job has followed the same proven process. No surprises, no shortcuts, no contractor games.

1. Free Roof Inspection

We inspect the roof and identify the growth and the roofing material, so we clean it the right way for your specific home.

2. Review Your Custom Quote

A quote built for your specific roof and its condition, in plain language.

3. Soft Wash Treatment

We apply our biodegradable solution, leave it on, and let it do its job, then rinse at low pressure. No high pressure, ever.

4. Results and Follow-Up

The algae is gone immediately. Over the next two to three weeks the lichen and moss dry, change color, and flake off, and the rain rinses away the rest. We follow up, and the work is backed by our 2-year warranty.

TOWNS WE SERVE IN BERGEN

More than four decades of local relationships across the county. We know which tree-lined towns grow the worst moss on their north-facing slopes, and which older homes need a careful hand on slate and cedar. Find your town below. Chances are we have already worked on a house on the next street over.

See the work, then call us.

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FAQ (Bergen Roof Washing)

Do you pressure wash roofs?

No, never. Pressure washing strips the protective granules from shingles, can crack slate and tile, and forces water under flashing and siding. It also leaves the spores behind, so the growth returns fast. We use a non-pressure soft wash that cleans safely and kills the growth at the root.

Are you licensed to work in New Jersey?

Yes. A&J Reliable is a licensed New Jersey home improvement contractor (NJ HIC #13VH01134800) and fully insured. We have worked across Bergen County for more than four decades from our base just over the line in Nanuet.

Is soft washing safe for slate, cedar, and copper roofs?

Yes. Our non-pressurized, biodegradable method is built for exactly the delicate and older materials so many Bergen homes have. It cleans them thoroughly without the damage high pressure causes.

How soon will I see results?

The algae is gone by the time we leave. Lichen and moss take longer, drying, changing color, and flaking off over the next two to three weeks, with the rain rinsing away the rest.

How long does a roof washing last?

Because we kill the spores and roots rather than just rinsing the surface, results last far longer than power washing. How long depends on shade and tree cover, so heavily canopied lots in the northern and western towns may need it sooner than open, sunny ones. The work is backed by our 2-year warranty.

Will the cleaning solution harm my plants or landscaping?

We protect your landscaping throughout the job, and our cleaners are biodegradable. Care for your property is part of the process, not an afterthought.

Your Roof Deserves the Attention

Homeowners often do not think about the roof until there is a problem, and by then it is frequently too late. If no one has cleaned or inspected your roof in the past two years, it is time. Stop the damage, protect your investment, and bring your roof back to life.