CORPORATE INFORMATION
Industrial Services Division and Johnston Construction
Company have combined operations to better serve our clients,
primarily in the Maryland and Northern Virginia areas. ISD and Johnston
are always ready to discuss client needs and match them with our capabilities
to handle any construction, design/construct, or environmental cleanup
project. Johnston has many core services to offer our clients in the
following markets: 
- Industrial/Mechanical Construction
- Private Environmental Construction
- Public Environmental Construction
- Remedial/Cleanup Construction
- Design/Construct Projects
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- Tank Foundations
- Air Pollution Control
- Landfills
- Telecommunications
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MISSION STATEMENT
It is our goal to provide our clients with high quality construction using professional expertise, superb craftsmanship, safe work practices, and exceptional teamwork; while maintaining a strong ethical conscience, being considerate of project economics and functional result, and always exploring new ways to improve our quality and productivity.
 
MARKETS AND CORE SERVICES
ISD has been in business since 1977. We have experienced personnel available to manage and perform your facility construction and maintenance needs. We specialize in the following items:
PROCESS
PIPING SYSTEMS
 Hot, chemical or gas lines need rerouting or replacing? High-pressure or control tubing in critical areas? Give us a call. We specialize in tough jobs.
- Air
- Oil
- Water
- Gases
- Steam
- Plumbing
- Hot Oil
- Asphalt
- Hydraulic
- Cryogenics
- Control Tubing
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IN-HOUSE
SPECIALTIES
 On-the-job fabrication for those special requirements and assistance with plant maintenance and shutdown work.
- Rigging
- Plumbing
- Pipefitting
- Millwright Work
- Welding
- Custom Steel Fabrication/Installation
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PROCESS
INDUSTRIAL PLANT PROJECTS
L.P. Installations (Suburban Propane)
Paper handling system (Sweetheart Cup)
Oxygen Piping (Union Carbide)
Furnace Rebuilding (Eastalco Aluminum)
Plating Room Renovations (Martin Marietta)
Air Systems (Seagirt Marine Terminal Monorails)
Becton Dickinson Aerosol Filling (Cello Grow Group)
Humidification Systems (Fairchild Space)
- Machinery and Equipment
- Assembly and Installation
- Platforms and Catwalks
- Ladders, Stairs, and Railings
- Heater Installations
- Pumps, Tanks, and Mixers
- Cranes and Monorails
- Conveyors and Elevators
- Bins and Hoppers
- Pneumatic Conveying
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ENVIRONMENTAL
PROJECTS
From major process piping and equipment projects at Baltimore City’s Back River, Patapsco and Montebello Treatment Plants to local industrial plant wastewater systems.
- Pollution Control Systems
- Dust Collection Systems
- Scrap/Waste Removal Systems
- Water and Wastewater Facilities
- Scrubber Systems
- OSHA/EPA Corrections
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