How long does it take to clean a roof?

• <div><p>On average, cleaning a roof will take between <b>two to five hours</b>. This timeline depends on the size and slope of your roof and the severity of any stains. <a href="https://www.angi.com/articles/3-roof-cleaning-methods-ugly-stains.htm">Cleaning roof stains</a> can take additional time, especially if there are signs of moss or algae.</p><p>In addition, the age of your roof makes an enormous difference in the time it takes to clean it, as older roofs need more gentle care. If you have significant landscaping in your yard by your house, your professional roof cleaner will need additional time to protect it from cleaning chemicals. </p></div>

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Q: Should you use a pressure washer on the roof shingles?

• <div><p>If you&rsquo;re asking yourself, <a href="https://www.angi.com/articles/can-roof-cleaning-extend-life-my-shingles.htm">should you pressure wash your roof</a>, the answer almost always is no. The water pressure that the power washing machine generates could damage the shingles by forcing water underneath or causing them to loosen. Soft washing with a pump sprayer is the better and safer option.</p><p> </p></div>

Q: Should asphalt shingles be power washed?

• <div><p>No, asphalt shingles should not be power washed. A power washer or pressure washer is too strong to use on asphalt shingles and will loosen the adhesive holding them to your roof, causing them to fall off. It&rsquo;s best to hire a <a href="https://www.angi.com/nearme/roof-cleaners/">local roof cleaner</a> to clean those shingles safely and without damaging them. </p></div>

Q: What maintenance ensures a metal roof's longevity?

• <div><p>To maintain metal roof health, schedule regular inspections, clear debris from gutters, and check for signs of corrosion.</p></div>

Q: How do I maintain a painted metal roof?

• <div><p>Regular cleaning, inspecting for peeling or rust, and reapplying coatings every 8-12 years helps maintain durability.</p></div>

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Verified Reviews for Roof Cleaning pros in Holland Patent, NY

*The Angi rating for Roof Cleaning companies in Holland Patent, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roof Cleaning needs.

*The HomeAdvisor rating for Roof Cleaning companies in Holland Patent, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roof Cleaning needs.

Last update on November 24, 2025

Reviewed in August 2025
I recently had a new roof put on my home by ten point roofing . The finished product met my expectations. The workers very professional and worked hard and very clean. I would totally recommend ten point in the future
Ten Point Roofing LLC
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Reviewed in June 2025
This experience went flawless. Isaac was a great estimator and well below many companies in the area. Roofers were professional. Area was cleaned like there was no one there working. A+ from start to finish. I would definitely recommend their services.
Goldspire Roofing LLC
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Reviewed in January 2024
Very professional would definitely recommend to any one who needs a roof repair
E & J Roofing
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Reviewed in July 2022
Mohawk Valley Roofing is the best . Eli and Simon were great to work with. I would highly recommend them for your roof needs. They were on time and quick and did a great job in replacing some roof that that needed it. No mess left behind. No leaks and the foam will help with heating and cooling...
Mohawk Valley Coatings
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Reviewed in July 2020
Going only on the basis of positive online reviews, I invited Utica Roof Pros to provide an estimate for replacement of my office roof. Their office responded promptly to my phone message, and their sales rep Andrei scheduled an appointment within a couple days after my call. Andrei presented as...
Utica Roof Pros LLC
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Reviewed in August 2015
Mosher Roofing did an excellent job replacing my house roof. The work and clean-up was impeccable and the crew was very friendly and efficient. They removed and disposed of the old roof and hand-nailed the new roof. It looks great! I would not hesitate to recommend them to anyone. Mosher...
MOSHER ROOFING SVC
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Reviewed in July 2012
The representative showed up on time to give us an assessment and a verbal quote. He was professional and seemed very knowledgeable about roofing .Some time went by while we waited for estimates from other roofers. We then decided on Roscoe and requested a written estimate several times, but he...
Roscoe's Roofing & Construction
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Reviewed in January 2012
Necessary roofing repairs were noticed after our Earthquake, Hurricane Irene....followed by a Tropical Storm. We also had chronic rotting wood around the garage doors and other areas on the roof, plus obvious leaky skylights. The gutters were 18yrs old and in obvious need for replacement. ...
Politz Enterprises Roofing Inc.
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Reviewed in July 2009
Very professional and attentive to our needs. Thoughtful in bidding process, clear about details. Once the job was underway there was some confusion about a detail or two, and Joe was good about working things out to our satisfaction. One caveat -- workers could have cleaned up better,...
J's Painting
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Roof Cleaning questions, answered by experts

If you’re asking yourself, should you pressure wash your roof, the answer almost always is no. The water pressure that the power washing machine generates could damage the shingles by forcing water underneath or causing them to loosen. Soft washing with a pump sprayer is the better and safer option.

On average, cleaning a roof will take between two to five hours. This timeline depends on the size and slope of your roof and the severity of any stains. Cleaning roof stains can take additional time, especially if there are signs of moss or algae.

In addition, the age of your roof makes an enormous difference in the time it takes to clean it, as older roofs need more gentle care. If you have significant landscaping in your yard by your house, your professional roof cleaner will need additional time to protect it from cleaning chemicals.

No, asphalt shingles should not be power washed. A power washer or pressure washer is too strong to use on asphalt shingles and will loosen the adhesive holding them to your roof, causing them to fall off. It’s best to hire a local roof cleaner to clean those shingles safely and without damaging them.

To maintain metal roof health, schedule regular inspections, clear debris from gutters, and check for signs of corrosion.

Regular cleaning, inspecting for peeling or rust, and reapplying coatings every 8-12 years helps maintain durability.

The Holland Patent, NY homeowners’ guide to roof cleaning services

From average costs to expert advice, get all the answers you need to get your job done.

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