To wash exterior windows, use a mixture of water and a mild detergent. Apply the solution with a sponge or cloth, and use a squeegee to remove excess water for a streak-free finish. For higher windows, use a telescoping pole with a squeegee attachment, or hire professional window cleaners for hard-to-reach areas and deep cleaning services.

Exterior windows are washed using water and detergent, followed by a squeegee to remove excess water. Telescoping poles can help reach higher windows, and professional services are recommended for larger or hard-to-reach windows to ensure a thorough clean.