When hiring a service for exterior building cleaning, costs typically range from $0.15 to $0.50 per square foot. Homeowners generally find themselves in a typical price range of $0.18 to $0.45 per square foot. The factors affecting the cost include the size of the surface area to be cleaned and how dirty it is, making an accurate assessment essential before hiring a service.
For a standard 1,800-square-foot home, you could expect your total cleaning bill to fall into the typical per square foot pricing. It's a good idea to secure multiple quotes from contractors to ensure you are getting the best value for your cleaning needs.