power washer and pressure washing in St. Louis

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Hercules pressure washing services are backed by our 100% satisfaction guarantee.

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Hercules Window Cleaning has been providing professional pressure washing services to the St. Louis area since 1960. As the leading power washer in St. Louis MO, we are fully insured and up-to-date on all certifications. Our power washing customers range from single story local businesses to fortune 500 office parks and high rises. Our standards even meet the most stringent requirements of U.S. government buildings.

St. Louis Power Washing Experts since 1960

Hercules Window Cleaning is the right choice for St. Louis businesses, building owners and property managers.

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  • More than 50 years of power washing experience in the St. Louis Missouri area
  • Over 450 St. Louis buildings cleaned, repaired and restored & 170 St. Louis commercial customers
  • We’re the only St. Louis window cleaning company certified by the International Window Cleaners Association
  • Safety training in compliance with ANSI-14 safety protocol, approved bythe IWCA and OSHA
  • We’re approved for highly secure facilities, such as the FBI and Fortune 100 Companies
  • We maintain insurance coveragethat exceed industry standards
  • We provide an unlimited performance guarantee



Read what our customers have to say:


[custom_frame_left shadow=”on”]Window Cleaning St. Louis Customer - Cassidy Turley
[/custom_frame_left]“Because of the large amount of glass that was utilized in our space to take advantage of the natural light, I needed someone to help make sure that it was clean on a consistent basis. Hercules does an excellent job for us.”

Libby Riley
Office Manager, Cassidy Turley



[custom_frame_left shadow=”on”]Window Cleaning St. Louis Customer - Rafco Properties
[/custom_frame_left]“At Rafco Properties we service premium properties and high demand clients. That’s the reason we team with Hercules Window Cleaning. We can always depend on Hercules for high quality work, attention to detail, and prompt service.”

Lena Vitale Gunn
Senior Property Manager, Rafco Properties



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