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Regular roof cleaning can extend its lifespan by 10 to 20 years and save you on roof repair costs. It also improves your home’s curb appeal and helps spot problematic costly roof problems. The average cost to repair a roof is $1,000.

Cleaning a roof takes two to five hours, depending on the size, condition, and cleaning method used.

Most homeowners spend around $650 on roof cleaning, while gutter cleaning costs about $150. Costs may vary depending on the size of your home, roof type, and the accessibility of your roof and gutters.

If your roof is dirty, mossy, or covered in algae, start by washing your roof. In many cases this is all that’s needed, but it’s also a helpful first step to uncovering any other issues. If you discover missing, loose, or damaged shingles while washing, or if you notice that the flashing leaks, it may be time to call in a pro for repairs.

It’s generally recommended to clean your roof every two to five years, depending on your roof type and climate. If you live in a damp area that’s prone to moss and algae growth, you may want to increase the frequency of your roof cleaning.