AC Lockyer and professional window cleaner Denver Klassen take us behind the scenes of an industry that’s far more complex than most people realize. With nearly two decades of experience, Denver explains why window cleaning goes beyond just spraying Windex on glass—it’s about properly treating frames, sills, screens, and gaskets while mastering techniques that turn ordinary maintenance into an art form.
The conversation journeys through traditional methods dating back to the Depression era, when window cleaners developed the iconic mop-and-squeegee technique that still requires significant skill today. Denver shares insider knowledge about proper soap ratios, “Miyagi windows” for training new hires, and the competitions where window cleaners showcase their speed and precision. The artistry behind achieving streak-free results becomes apparent as Denver explains how hydrophobic and hydrophilic glass properties fundamentally change the window cleaning approach.
From residential to commercial window cleaning, this episode delivers valuable insights about protecting what Denver calls “the movie screens to your life.” After all, windows often represent a $50,000–$100,000 investment in a home. Your home deserves proper window care to preserve both function and beauty while allowing that all-important natural light to shine through.

