A look at a professional window cleaner's top tips for cleaning windows, including their preferred products, must-have tools, ...

Mix a gallon of hot water and a nickel-sized drop of dish soap to clean any window like this pro does. Consider your tools—make sure they are not so big that they become unwieldy and unhelpful.

Pro cleaners reveal the simple, streak‑free method for washing windows—and the common mistakes that make them look worse.

Use a mix of hot water and a nickel-sized drop of dish soap for cleaning windows. Ensure squeegee technique is correct to avoid leaving behind streaks. Avoid cleaning windows in direct sunlight to ...

Dear James: My new house has many windows and I have a problem cleaning them without leaving streaks, especially on the south-facing ones. Dear Alex: You probably had streak-free windows when you ...