Have you noticed how much better windows look when they’ve been properly cleaned? The build-up of grime, smears and dirt accumulating on our windows is ignored by most of us. We try to ignore the accumulation of grime, smears and dirt on our windows. But as most professional organizations know, employing window cleaners and spending time on the general maintenance of your building gives a positive impression and can save money in the long run. After all, moldy window frames and blocked gutters can take their toll and lead to damp problems or window replacement.