Everything we know about glass, organized for the way questions actually arrive.
The Encyclopedia
Every surface, every tool, every problem — documented. The workhorse pages.
The Diagnostician
Start with what's wrong. Find the cause. Fix it once. Stop relearning.
Field Notes
Reported essays. Original photography. The craft as worth taking seriously.
The Pro Track
Pricing, equipment, route theory. Insider knowledge for the working cleaner.
The Glossary
Every term in the trade, defined by the people who use them on routes. Cross-referenced.
The men who clean the tallest building in the world.
At 828 meters, the Burj Khalifa is a vertical city of glass — 24,348 individual panes that, together, would cover seventeen American football fields. A team of thirty-six rope-access technicians cleans them on a rotation that takes between three and four months to complete. By the time they finish, it is time to start again.
What follows is what they taught us about water, wind, and the strange psychology of working at the edge of nothing.
Built for the work, not the page. Diagnostics, calculators, and references that solve actual problems in seconds.
Streak Diagnostic
Two questions, one verdict. Identify what's actually wrong with your window — and find the article that walks you through the fix.
Hard Water Severity Scorer
Enter your zip code. We pull regional water hardness data and tell you exactly what you're dealing with.
The Solution Calculator
Exact ratios for any volume of any cleaning recipe. Save your formulas. Print the labels.
The Technique Library
Eight chapters of animated technique reference — squeegee, detail, razor, application, and more. The canonical reference.
Cost Estimator
Square footage, story, accessibility, region. DIY vs. pro pricing in one glance.
Tint & Coating Identifier
Visual quiz to identify your glass before you ruin it. Tempered, low-E, laminated, tinted.
The weekly column. Seasonal, contrarian, occasionally angry about TikTok.
Vitro promotes Shawn Winn to lead Western regional sales
Vitro Architectural Glass moves a four-year Central Plains commercial account manager up to run the Western desk. A small piece of trade new…
Two presumptive hantavirus cases revive the question of who actually cleans
Two presumptive hantavirus cases were reported this week, on the heels of a cruise-ship outbreak this spring. The cleaning trade keeps being…
Asthma Awareness Month is a reminder that windows are an allergen reservoir
May is Asthma Awareness Month, and CMM's coverage this week loops back to a problem we already write a lot about: pollen, mold, and the role…
What's actually being read. Live from the archive, sorted by what's solving problems right now.
What the trade is reading. A weekly read of what's shipping, what's shifting, and what we think it means.
Filed by the Window Washing Guide News Desk from trade press, glass-industry releases, and policy filings. No aggregation. Our own read of each story.
Vitro promotes Shawn Winn to lead Western regional sales
A people-news note from the Solarban side of the trade: Vitro Architectural Glass moves a four-year Central Plains commercial account manager up to run the Western desk.
Two presumptive hantavirus cases revive the question of who actually cleans
Reported this week and following a much-publicized cruise-ship outbreak earlier in the spring: the cleaning trade keeps being the invisible variable in the public-health story. Worth thinking about.
Asthma Awareness Month is a reminder that windows are an allergen reservoir
May is Asthma Awareness Month, and the indoor-air-quality story keeps lapping back to a thing we already write a lot about: pollen, mold, and the role of the exterior glass in carrying it indoors.
The federal apprenticeship for cleaning is here. What it means for window-cleaning operators.
ISSA's Department of Labor-approved Cleaning Technician Registered Apprenticeship is the first national framework that treats cleaning as a skilled trade. Window cleaning sits inside that umbrella — uncomfortably, and usefully.
Skyline's Color + Water decorative glass is another reason to identify substrate first
A new printed-and-tempered decorative line from a Chicago studio: watercolor-derived art, scaled large, on glass intended for partitions and feature walls. Another piece of stock the trade is going to be asked to clean without knowing what's on the surface.
Vitro's EcoArmor topcoat: a factory coating that survives tempering, headed for the field
Vitro launched a protective full-surface topcoat on its Solarban 90 low-e glass that stays on the lite through tempering and reportedly cuts cycle times. The pipe between this and what a route-cleaning operator sees on a finished facade is short.