As per NYC Department of Buildings requirements, all new construction buildings over 20 stories are required to have a permanent Building Maintenance Unit (MBU) installed on the roof. BMU is designed as a system specifically for the building where it is installed and is a great access method for window cleaning for high rise buildings (25 stories and up).


  • Once a BMU is installed, tested and certified, it is always ready for use.
  • Pre-planned and controlled safety.
  • Similar to aerial lifts, BMU is 100% legal anywhere in the USA.
  • BMUs are the best for tall sky-scrapers (30-100 stories).
  • Work crew familiarization by a BMU installer usually takes 1-2 days.
  • BMU is designed so that it is able to reach all building fa├žade surfaces.


  • High upfront investment is needed. BMU is highly technological equipment and is naturally expensive. Average unit and installation cost is $1-2 million.
  • BMU must be inspected and re-certified every year, which costs $10,000-20,000.
  • Mandatory cable replacement (used or unused) every 2 years. Cost $10,000-20,000.
  • BMU breaks from time to time. Service call for inspection and repairs are quite expensive.
  • Building owner and manager carries full liability for safety of work crew while working from BMU.

Not sure which solution fits your needs? Please give us a call and our representatives will consult you to best serve your needs!

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