1) The window cleaner arrived early in the morning to clean the office building's windows.

2) She hired a professional window cleaner to wash the second-floor windows of her house.

3) The restaurant hired a window cleaner to ensure their storefront windows were sparkling clean.

4) The window cleaner used a squeegee and a bucket of soapy water to clean the windows.

5) As a window cleaner, his job was to clean both the inside and outside of the windows.

6) The window cleaner used a long pole with a soft bristle brush to reach high windows.

7) After the window cleaner finished his job, the windows gleamed in the sunlight.

8) The window cleaner wore safety harnesses when cleaning windows on tall buildings.

9) He started his own window cleaning business and became a successful window cleaner in the city.

10) The window cleaner worked diligently to remove dirt and grime from the windows of the house.