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: Do gable vents let water in?

• <div><p>Yes, gable vents can let water in. That being said, this usually only occurs during extreme conditions like heavy rainfall. You can prevent water from entering through gable vents by adding a screen that traps the water before it can enter.</p></div>

Q: Can you clean algae off a metal roof?

• <div><p>It may require stronger cleansers or chemicals, higher-pressure spray, or scrubbing to completely remove algae from a metal roof. Start with a mild cleanser; if that doesn&rsquo;t work and you're comfortable doing so, use a stronger mix of ⅓ cup of laundry detergent, 1 quart of bleach, and 3 quarts of water to gently scrub the algae with a soft-bristled brush. If algae is present across large portions of your roof, doesn&rsquo;t come off with gentle scrubbing and cleansers, or is in hard-to-reach areas, this may be a job better left to a pro.</p></div>

Q: What kills green algae?

• <div><p>Vinegar, bleach, chlorine, barley straw, and a bevy of dedicated algaecides can kill algae, which is the easy part. Preventing algae from returning can be a struggle for some homeowners, but keeping the patio well-maintained and clean is a good first step. </p></div>

Q: What happens if you leave snow on your roof?

• <div><p>You may be wondering if you really need the snow removed from your roof. Since most roofs can only handle 20 pounds per square foot of snow accumulation, there is a tipping point when you are suddenly at risk of roof collapse. This can cause a lot of damage, not just to your home, but to your belongings, too. It also poses a physical danger to your family. Also, a lot of snow on a roof makes it more susceptible to ice dams, leaks, and water damage.</p></div>

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Verified Reviews for Roof Cleaning pros in Frenchtown, MI

*The Angi rating for Roof Cleaning companies in Frenchtown, MI 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 Frenchtown, MI 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 December 05, 2025

Reviewed in August 2025
Perfection metal roofing, did a great job installing our new metal roof. They did a great job cleaning up after they were done, we had a small issue which they resolved for other quickly. The price was very reasonable. And the gentleman who came out to explain everything to us did a great...
Perfection Metal Roofing, Inc.
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Reviewed in July 2024
They did a very good job on my roof repair and was very adorable, also cleaned up. I will be calling them back when I need more work done
We Nailed It Home Improvement
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Reviewed in February 2023
The people who did my roof were very professional, very helpful .They kept me informed throughout the entire process. They let me know exactly what was going on. Before they did anything, they let me know every step of the way. From the actual project to clean up they were great!
Elite Roofing and Restoration
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Reviewed in May 2018
We have a three bed, two bath ranch house with four valleys, chimney and several vent openings. 4 Guys and a Roof did a fine job and very professional. The roof looks great and was all done in one day. Very good clean up and no damage to the yard or plantings around the house. Replaced drip edge...
4 Guys and a Roof Roofing LLC
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Reviewed in February 2016
Very professional. Replaced the roof on my garage. Quick, efficient and cleaned everything up when done. Highly recommend.
Bryer Co
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Reviewed in June 2015
My roof was damaged from a hail storm. Worked with John (the owner who looks like Mr. Clean) who was very knowledgeable, down to earth, and efficient. The insurance claim was approved on a Wednesday, roof supplies were delivered on Thursday, and I had a new roof (total tear down) Saturday....
Canton Construction Corp MIGRATED ADS
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Reviewed in November 2013
From the start he was up front with us that he had financial problems. Therefore, we suggested that he provide a materials list so that we could purchase the materials. We paid for the materials and the dumpster, therefore, no down-payment was requested by the contactor. The contractor...
MBS Contracting
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Reviewed in July 2013
I am very happy with Jim's work, and recommend him highly. He finished a roofing project that was started by another contractor. I provided the materials (most were on site), Jim finished the tear-off, and installed the new shingle. The crew was hard working, respectful and cleaned up the job...
JB Construction
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Reviewed in June 2011
I was getting estimates to replace the roof on my house. Ace was working on a roof in the neighborhood so I stopped and talked with them. The owner came right down, went up on the room, measured and felt around. This was the only company that actually went up on the roof. He explained...
ACE ROOFING
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