Window cleaning might seem straightforward, but as Denver Klassen from Denver’s Window Cleaning and SoftWash explains, there’s much more to it than meets the eye. With nearly 19 years of experience in the industry, Denver reveals that window cleaning encompasses not just the glass but multiple components including frames, sills, screens, casements, and gaskets. These various elements require different approaches and techniques to ensure a thoroughly clean result.
Traditional window cleaning, dating back to the Depression era, remains a popular method using what professionals call a scrubber (or mop) and squeegee technique. This approach involves a T-shaped handle with a sleeve that resembles lamb’s hair, which is soaked in a bucket and used to apply soapy water to the glass. The real skill comes in the squeegee technique—removing that dirty water with a rubber blade in a metal channel. Window cleaning aficionados even compete in speed competitions, showcasing the artistry involved in achieving streak-free results.
The secret to successful traditional window cleaning lies in the proper soap-to-water ratio. Denver recommends starting with approximately one tablespoon of soap per gallon of water, adjusting as needed depending on how your squeegee glides across the glass. Too little soap causes the squeegee to bounce or squeal, while too much leaves residue. Understanding the properties of the glass also matters—hydrophobic glass repels water (making it bead up), while hydrophilic glass allows water to sheet across the surface, making squeegee work easier.
A more recent innovation in the industry is pure water window cleaning, which has gained significant popularity over the past decade. This method uses water that has been filtered through reverse osmosis systems and deionization resin to achieve zero total dissolved solids (TDS). When this ultra-pure water is applied to windows, it naturally attracts dirt without requiring any soap or chemicals. The technique involves scrubbing the frames first, then focusing on the glass, and finally allowing the pure water to evaporate naturally, leaving a spot-free finish.
Water-fed poles allow window cleaners to reach up to seven stories high while keeping their feet safely on the ground. This system is particularly beneficial for multi-story buildings, making window cleaning safer and more efficient. However, challenges arise when dealing with hydrophobic glass or cleaning on hot, sunny days, requiring specific techniques to prevent spotting as the water dries. Specialized equipment like rinse bars positioned above the bristles helps achieve streak-free results by continuously rinsing away dirty water during the cleaning process.
For property owners considering window cleaning options, Denver suggests three approaches: the basic homeowner method (using a soft scrub brush and water, followed by blowing off excess water), the traditional mop and squeegee technique, or investing in professional pure water cleaning equipment. Alternatively, connecting with a SoftWash Systems professional like Denver provides access to expertise developed over years in the field. After all, windows represent a significant investment in any building—often $50,000 to $100,000 in a home—and proper maintenance preserves both their functionality and appearance while allowing more natural light to brighten interior spaces.