Pipe Trades
			DDL has cultivated a skilled team of tradesmen whom take great pride in   building any type of mechanical applications; whether the job is   plumbing, refrigeration piping, fire sprinkler pipe fitting, medical gas   and solar heating.
			DDL Offers:            
			
				
					
					    - Backflow  installation and certification
- Detailing,  fabrication and assembly of plumbing & mechanical piping systems and  components 
- Time  & cost saving installation methods & materials 
- Underground  & aboveground fuel oil storage tanks
- Oil  Water Separators & Oil Sand Separators 
- Elevator  Sump Pumps, Booster Pumps, Circulating Pumps
- Plumbing  Fixtures including Buy American Act & LEED compliant
- Domestic  Water, Waste,
- Natural  & Propane Gas Piping Installations
- Refrigeration,  Chilled Water, Condenser Water, Condensate Drain Piping
- Solar  Hot Water Systems 
 
			  
					
              
                      - Gas/Electric  Tank Water Heaters, Instantaneous Water Heaters, Boilers
- HVAC  & plumbing expansion tanks 
- Fuel systems including fuel tanks & fuel  fill stations 
- Vibration isolation & seismic restraints 
- Generator Exhaust Systems 
- Emergency Eye Wash & Shower Stations 
- Dental &  Healthcare Systems
- Chlorination
- High pressure  sewer jet cleaning
- DWV pipe camera  inspections
- BIM 3-D modeling 
 
			 
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