Professional window cleaners reveal how to achieve perfection.
Professional window cleaners say you should wash your windows four times a year—once with each of the changing seasons. Here are seven window-washing tips for people who want their windows to shine like a professional cleaned them.
Stay out of the sun – Never wash windows in direct sunlight because cleaning solutions will dry too quickly, leaving a streaky residue.
Use a squeegee – After you apply cleaning solution, wipe with a...