Professional duct cleaning, furnace and flue vent cleaning. Commercial and residential services offered.

Contractor for roofing, siding, windows and gutters.

Provides all aspects of material handling equipment and conveyor systems including design, installation, sales and service.

Wholly owned subsidiary of the Ingersoll-Rand Construction Equipment Group. Full service facility serving the state of Maryland, Washington DC, and Northern Virginia.

Provides industrial maintenance and installation services. Also pre-engineered buildings, dust collection systems, and pneumatic conveying systems. Can fabricate structural steel stuctures.

Full service roofing and siding contractor serving the greater Maryland area. Includes description of services, contact information and company background.

Water system and monitor well products.

Sales and engineering arm for Wheeling Corrugating Company's floor and roof deck products.