The most frequent question I receive from my customers is “what’s in that bottle?” Although I infrequently employ a professional solution known as Glass Gleam (GG4) to clean really dirty windows or those with hard water spots, I am usually spraying Dawn and water onto their windows. The secret to clean windows isn’t in the cleaning solution but in the tools and technique.
I personally use the Moerman Liquidator squeegee with the FLIQ mop for scrubbing, microfiber towels to detail the windows and clean the tracks, and a simple solution of Dawn in a spray bottle to wet and lubricate the glass.
I use a simple putty knife to help remove screens, a special glass scraper designed for window cleaning to remove things that a mop just won’t get, and 0000 steel wool for those obstinate things that the scraper can’t remove.
However, technique is EVERYTHING. Bad technique leaves lines and smudges behind. [Maybe future link to YouTube Videos displaying me cleaning a window, or integrated into this blog?] It’s also EXTREMELY important to limit the amount of solution at the top of the window so that it doesn’t drip down from the frame after you’ve moved on to the next window.
Another secret of the professional window cleaner is the removal and treatment of screens. Few manufacturers make screens that remove easily. I previously mentioned using a putty knife to aid in screen removal, but the technique of removing screens requires patience and some knowledge of different screens. Screens should be cleaned before replacement. I personally brush out both sides of the screens with a stiff hand brush to remove the dust that settles on the fabric or metal and I wipe down the frames.
The professional window cleaner will also clean the tracks with a track brush and with the wettest towel from detailing out previous windows, and will rotate towels so that there are three towels, usually the cleanest on the left shoulder for removing lines and smudges from the cleaned glass, one on the right shoulder for detailing, and the wettest for the tracks and to clean any drips. Once it’s dirty, I rotate towels and get a fresh one for the left shoulder. To finish up the window, I wipe down the frame and replace the screen.