The answer to 'difference between window cleaning' is that there are two main types of window cleaning: interior and exterior. Interior window cleaning focuses on cleaning the inside of windows, while exterior window cleaning focuses on the outside. Both have their own benefits, costs, and use cases depending on your specific needs.
Interior window cleaning is generally less expensive and easier to do yourself, as you can access the windows from inside your home. It's best for maintaining cleanliness and visibility on a regular basis. Exterior window cleaning, on the other hand, is better for a thorough, deep clean to remove heavy grime, streaks, and build-up. This typically requires professional window cleaners who can safely access the outside of your windows using ladders, lifts, or other equipment.