Traditional solutions
The safest method is to contact any cleaning company providing cleaners-climbers. But often this option is not acceptable in connection with the high cost of such services and the need often enough to resort to it – because the recessed balconies of many apartments overlook a building site and loaded cars avenues, the dust from which even reaches 19-20 floors.
You can use a special double-sided brush with telescopic handle extendible up to 130 cm One side of this brush is a soft sponge, covered with protective mesh or cloth, which, after soaking in cleaner, in fact, to clean the glass. To the other side is fastened a rubber strip, which is convenient to remove the remnants of dirt and soap scum. Buying this brush, it is better to opt for the version with movable head tilt which can be adjusted. This will facilitate access to the corner elements of the window.
The brush can be replaced by MOP wound on her terrycloth or cotton towel and then wipe replacing it with a dry cloth. And even better to use special wipes to clean glass. Wiping after washing with them is not required. A more effective assistant will be a MOP with a rotating tip and interchangeable tips.
Include creative
This option is ideal if you will be able to provide a supply of water under pressure to the loggia. From a plastic bottle make a "spray", fill it with diluted according to instructions shampoo for motor vehicles and, not too leaning, pour the solution glass. After twenty minutes, rinse with clean water.
Recently to meet the magnetic brush consisting of two sponges with attached magnets. This arrangement allows you to wash glass on both sides simultaneously. For this you just need to put sponges on both sides of the window, a powerful magnet will hold the sponge on the outside and it will start to repeat all your moves.
Well, most high-tech way (by the way, quite expensive) is to use a special robot for washing Windows that will do all the work.
However, the latter two methods have a drawback – they do not allow to remove the dirt in the corners of the flaps carefully enough, but the main area of the window will be clean and most importantly, without risk to life.
And yet, the only way to wash Windows with maximum comfort, is the alteration of the valves of loggia glazing: thus, in order to ensure full access from within the premises, that is, either opening inwards or provided with the option of removing the sash from the frame. The procedure is quite expensive but is done only once and will ensure your safety during the whole life.