Window Cleaning Facts — Greenlight Services
Interesting Window Facts from Around the World
34,348 Windows
The Burj Khalifa
● Dubai, UAE
The Burj Khalifa has 34,348 windows. A team of 36 cleaners takes three months to clean them all — and by the time they finish, it’s nearly time to start again.
$3M Custom Rig
Hearst Tower
● New York City, USA
Hearst Tower’s complex exterior takes a full month to clean. Its unique geometry required a custom-built rig that cost $3 million and took 3 years to design.
Taxed by Window Size
Amsterdam
● Amsterdam, Netherlands
Amsterdam once taxed homes by the number and size of their windows — a clever way to impose income taxes on wealthier families without touching their private financial records.
6,500 Windows / 102 Floors
The Empire State Building
● New York City, USA
The Empire State Building has 6,500 windows across 102 stories. The cleaning cycle is so long that by the time the last window is done, it’s time to start back at the top.
147 Windows
The White House
● Washington D.C., USA
The White House has 147 windows. Each one must meet rigorous security and cleanliness protocols before any cleaning crew can access them.
760 Windows
Buckingham Palace
● London, England
Buckingham Palace has 760 windows across 775 rooms. Keeping the royal residence’s iconic façade gleaming demands meticulous, regular professional cleaning.