Difficult Access and Pure Water
The water from our taps is NOT PURE, it has all sorts of chemicals and minerals added to it before it flows from your tap. Therefore, when tap water evaporates, it leaves behind mineral and chemical deposits that are damaging to your windows. These particles will actually begin to etch the glass: which you've probably noticed happen to your shower glass.. we see it happening most often on low windows where water from a sprinkler system has hit the glass.
New windows are particularly susceptible to this, so called, "hard water staining", as new glass remains "soft" for some time after the manufacturing process. Within only a month, a new window can already begin to show signs of permanent hard water damage.
At Sumner Window Cleaning we use a "Pure Water" cleaning system. A soft bristled brush on the end of a carbon pole is used to lift any grime, whilst a constant feed of pure filtered water rinses away any deposits. It almost always eliminates the need for detergents that could also damage the glass, and leaves your windows sparkling.
As well as being ideal for office blocks and apartments, this method is also recommended for skylights, awkward spaces and natural areas where protecting lawns and plant life is important. It is now the standard method used to clean windows around the world (particularly in Australia, USA and The UK) and is slowly becoming more common in NZ as an imported technology.
