Black Marks or streaks on your roof indicates your roof is dirty and needs to be cleaned. After years of dirt, lichens, moss, mold and mildew growing on your roof, the black marks or streaks appear.

pressure cleaning, pressure washing, roof washing, black streaks, black marks, pressure washing, power washing, Chappaqua, house washing and roof cleaning, moss, mold, mildew, black streaks, soft roof wash, shampoo, power washing, roof shampoo, roof algae- westchester power washingHaving cleaned roofs in Westchester, Putnam and Dutchess County  New York since 1990 we know the best roof washing techniques. Over the years, we have been getting calls for a roof shampoo as well as roof soft washing. Though it may seem like different pressure washing process, soft roof washing and roof shampoo are not the same.


To begin, roof shampoo is more a roof cleaning process just like soft roof washing. Roof shampoo is also a roof cleaning company that operates under that name. We are not part of the roof shampoo franchise nor do we use the same roof cleaning process.


At Westchester Power Washing, we soft wash your roof. We never pressure wash or power wash your roof. We clean your roof properly and safely. Some of the questions we get about roof cleaning are answered below.


Frequently Asked Questions About Roof Cleaning


What products do you use to remove roof stains?

The environmentally friendly roof cleaning products WEstchester Power Washing uses is safe and the ones recommended asphalt roof manufacturers.

Will the roof washing process harm my plantings around my home?

No. Our roof washing products no our soft washing technique will harm your plants or foliage. will not harm any vegetation or surfaces around your home.

Do you use high pressure pressure washing on the roof?

We never use high pressure or power washing to clean your roof!  High pressure or power washing will damage your roof and roof shingles. The most effective way to remove black streaks and marks, algae, moss, mold, mildew and lichens is to soft wash your roof.

How long will my roof stay free of black marks and black streaks after you soft wash my roof?

At Westchester Power Washing we offer a 5 year roof clean guarantee. After we wash your roof, it will look almost like a new roof. To learn more about our Always Clean Roof guarantee, call us at 914-490-8138 and speak to the owner, Peter Salotto.

What if I just leave the algae stains (black marks and streaks) on my roof?

Algae is a living, growing organism and continues to grow on your roof. The algae eats away at your roof shingles and causes permanent damage to your roof, its efficiency and life. A roof covered in algae will need to be repaired sooner. In addition, your homeowners insurance company may force you to wash your roof or have your policy cancelled. A roof with algae, lichens and moss absorbs heat. This can make your house hotter in the summer and will cost you higher electric bill to cool your house.

Why should I choose Westchester Power Washing instead of companies that call themselves Roof Shampoo®?

The Roof Shampoo® roof cleaning companies are a franchise. Some of their roof cleaners lack the experience of Westchester Power Washing. We have washed more than 18,000 home exteriors since 1990. We also have some of the best roof cleaning equipment available.

In addition, we also give FREE roof, house, patio and deck cleaning estimates by calling or texting 914-490-8138.

To schedule a FREE roof, patio or deck cleaning estimate or to book us to come out to your home and pressure wash your house or soft wash your roof, call or text 914-490-8138.

Yes, seeing black streaks or black marks on your roof is unsightly, affects your roofs efficiency and can cause your home insurance policy to be cancelled. But, there is another reason to clean your roof often.

power washing,roof shampoo, soft wash, pressure cleaning, siding,pressure washing, siding pressure cleaning, Vinyl siding pressure washing, siding soft wash, house washing, soft house washing, power washingA house that is clean inside and outside is more inviting, has more curb appeal and protects your investment. A clean home exterior includes having your patio, deck and fence pressure washed. Pressure washing also removes mildew, lichens, moss and mold from your decks, patios and fences as well.

When you want a professionally cleaned roof, siding, deck and patio – Westchester Power Washing is licensed and insured.



For a FREE Roof Cleaning estimate as well as FREE Deck, Siding, House and Patio Pressure Washing quote or estimate, call Westchester Power Washing at (914) 490 – 8138.