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Los Angeles, Ventura, Santa Barbara Counties
Los Angeles, Ventura, Santa Barbara Counties We are located in Los Angeles County.
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Our main lines of business include: Generator Sets, Solar Systems--Sales, Cleaning & Maint., Electric Vehicle Charging Stations.

Otto H. Rosentretter Co. has been listed in the Blue Book since 1990.

What We Do

Products/Services Relating to Generator Sets
Products/Services Relating to Solar & Wind Energy Systems
Products/Services Relating to Electric Vehicle Charging Stations

Service Areas