Pure Water Window Cleaning- Hype or Reality?

As in any industry or service field, terms can be used soundly or casually. They may be relevant or simply be buzzwords or catchphrases. For a more technical explanation, here’s a helpful article.

In the arena of professional window cleaning, you will likely never see someone advertise that they use distilled water. However many, including Dan Wagner Window Cleaning, will happily announce that they use pure or ultrapure water, especially for outdoor applications. What is their relevance and how much does it matter? In a nutshell, distilled and pure water have been by different processes, had practically all impurities removed. Distilled is associated with boiling and condensation while pure is associated with filtration. Ultrapure water, by description, has had as much impurity removed from it  as humanly possible. So a layman might say ‘ultrapure’ is actually purer than ‘pure’. When it comes to window cleaning, this distinction is not as vital as in high-end industrial or medical applications.

So how and when is pure water a benefit for window cleaning? The benefit is by and large seen when using a water fed pole whereby the technician is first scrubbing off the dirt and grime and then rinsing said dirt and grime off the glass. With this method there is no need to follow up the wash with a squeegee or detailing rags. The pure or ultrapure water that is still on the glass after thorough rinsing will dry spot-free. Although there are many window cleaners that will maintain ’till their dying breath that hands-on or ‘nose to glass’ window cleaning is always superior and the truly professional way, probably just as many, hopefully more, realize that this is simply not true under all but the most difficult circumstances. A window cleaner who knows how to properly use pure water technology and the tools that go with it and understands there is equipment maintenance involved, and also that there are certain limitations that at times will dictate he opt for ‘older school’ methods’ when necessary, will be in very good shape for successful execution. For companies like mine that also clean interior windows, we still need to do an amazing job in the inside with common methods, such as what cleaning solution we use and the tools and level of thoroughness and detail. You simply can’t hide mistakes whether inside or out when the right light hits it!  That is one reason we often get called to provide service in the morning, when the sun is just coming up and homeowners look out their east-facing windows with sunken hearts.

So in summation, pure, ultrapure, or distilled water has many benefits, especially for outside cleaning.