How do you get windows streak-free?

We use ultra-pure water through a professional water-fed pole system, which removes all minerals and impurities that typically cause streaks. This allows us to clean even high or hard-to-reach windows without leaving marks behind.

Bonus Tip: If you're trying it yourself, avoid paper towels and use a clean, lint-free microfiber cloth — and always clean on a cloudy day to avoid fast drying.