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*The Angi rating for Chimney Sweeping companies in Malcolm, NE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Chimney Sweeping needs.

*The HomeAdvisor rating for Chimney Sweeping companies in Malcolm, NE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Chimney Sweeping needs.

Last update on January 09, 2026

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Chimney Sweep questions, answered by experts

A professional roof cleaning lasts about a year on average, so it’s best to do it annually. This schedule helps catch any roof problems before they become extensive and helps prevent mold, moss, and algae from forming. If you live near the coast, annual roof cleaning will help prevent salt buildup on your roof. You can add professional roof cleaning to your yearly home maintenance checklist to ensure you never miss a year.

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.

Other than it looking like a dirty car, there are some other signs you need to clean your roof. Moss growth, algae (often black streaks), grime buildup, buildup under shingles, and leaf buildup are all classic signs a cleaning is overdue. If you have neighbors, take a look around. If your roof appears different in any way, that’s another sign to call a pro to have it cleaned.

While DIY cleaning is feasible, it's risky without proper equipment or experience. Hiring professionals ensures safety and effectively avoids damage.

Having your roof cleaned can be worth it because it improves the life span of the materials on the roof. You won’t have to pay a roof replacement cost as often when you clean the roof regularly. 

The Malcolm, NE homeowners’ guide to chimney sweeping services

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

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  • 🏠 "Repair shingles on an asphalt roof"