At ProKleen, one of our most popular and well-used cleaning services is commercial window cleaning. Our professionals take the time to clean every little detail of all window types and sizes, and even clean frames to go that extra mile. Not all window cleaning services come with our reputation for quality and excellence, however. What are some of the mistakes that can take place when you trust your window cleaning to amateurs? Here’s a look. Excess Detergent There’s an incorrect tendency from inexperienced cleaners to assume that more detergent is always better, but the exact opposite is often true. Too much detergent makes surfaces streaky,Read More →