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Columbia Elevator Company, Inc.
Provides elevator and escalator services, from construction and maintenance to service and safety testing. Serving MD, DC, VA, and DE.
http://www.columbiaelevator.com/
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Comfort Link
Offers cooling services for downtown buildings.
http://www.comfortlink.com
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Continental Services
Specialists in geothermal energy and radiant heating installations, both commercial and residential.
http://www.continentalservice.com
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Controlled Demolition Incorporated
Offers the demolition of buildings and urban structures, bridges, chimneys as well as special effects, consulting, and emergency demolition.
http://www.controlled-demolition.com
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