Professional washing can be a great service, especially if you can't get to certain windows or skylights. The cost per window takes into account the variations in time, effort and risk involved in cleaning each individual window. Professional window cleaners typically take two hours to clean the windows of an average 1,800 square foot home. Window washing companies may charge more to clean windows after construction or remodeling because additional dust and dirt generate more labor for them.
If a large window or glass door has paint on one edge, then it will be the full price of cleaning the window or door. Cleaning window fingerprints is important because dead insects, cobwebs, pollen and dust can build up there, which can cause mold to grow or cause windows to stick when you try to open or close them. Some, but not all, window washing companies clean the screens as part of the overall package, especially if they remove the screens anyway to clean the rest of the windows. Cleaning windows yourself will eliminate this cost, which could save you hundreds of dollars, depending on the size of your home.
Dangerous heights and difficult access can make washing windows on upper floors too overwhelming for yourself. Some professional companies also offer cleaning services for window details, such as blinds, curtains and window treatments. This ultra-pure water will absorb and remove all dirt and grime, leaving your windows with a long-lasting, stain-free shine. Many window washing companies also clean window sills and tracks while cleaning and maintaining other components.
And washing a hard-to-reach window poses an additional safety risk for the professional, who may have to climb a ladder or elevator to reach it. Multi-panel windows typically require more time, energy, and attention to detail than single-pane windows. Finally, the overall size of the windows affects the cost, so if you have larger than average windows, talk to your cleaning professional ahead of time. Professional window cleaners can clean your interior and exterior windows with the right equipment, the right safety precautions and the right type of cleaner to avoid damaging the glass.