A building maintenance unit (BMU) is a remote-controlled, or mechanical device, usually
installed and suspended from the roof, which moves along the surface of a
structure while carrying window cleaners.
THINGS TO CONSIDER
The high upfront investment is needed. BMU is highly technological equipment and is naturally expensive.
The 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.
The building owner and manager carry full liability for the safety of the work crew while working from BMU.
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