For decades, building owners and managers have been forced to choose between price and performance in their facility upgrade projects. This is no longer the case with Entegral Solutions Group, a newly-created division of DFW-based DMI Corporation (d.b.a. Decker Mechanical) that is combining high quality and low cost into a new industry-leading approach for purchasing energy and facility upgrades.
DMI installs, repairs, and modifies existing plumbing and HVAC systems, working together with our other departments for on-time accurate, and emergency repair.  
• Pipefitting
• Welding
• Mechanical
• Plumbing
• Sheetmetal
• Boilers
  Phone: 972.291.9907
DISPATCH: 972.299.9434
Fax: 972.299.6437
  Pipefitting, Welding, Mechanical and Plumbing
DMI installs, repairs, and modifies existing plumbing and HVAC systems, working together with our other departments for on-time accurate, and emergency repair. DMI has a complete fleet of welding trucks and employs numerous master plumbers. Our constant in-house testing of welders provides you with quality assurance. All DMI plumbers fulfill or exceed state requirements for continuing education.  
  Pipefitting, Welding, Mechanical and Plumbing Services  



• water heaters

• pipe insulation

sanitary/storm sewers

high/low pressure gas lines

threaded pipe


Hydrojet sewer service

• Video inspections


Leak and line locating

medical gas lines

flow meters and sensors

water distribution systems

certified back flow preventer and installation testing

copper pipe

welding trucks


We're Problem Solvers, not parts changers.

DMI's service department provides timely start-up and check-out of the installed equipment, and operation and maintenance instructions to the owner's representatives. DMI also services all makes and models of equipment, and provides preventative maintenance services as necessary. DMI's Service Agreements are tailored to surpass customer's needs and are monitored for fewer emergency calls and less down time.

DMI also services all pneumatic, electric and DDC controls. DMI is an authorized dealer for the Honeywell LCBS Direct Digital Control System. We can design and install the perfect system for any building. The Honeywell LCBS system is easily expandable at anytime. DMI currently provides off-site building monitoring, which will provide 24-hour off-site emergency service.

  HVAC Services  
Centrifugals, Recip, and Screw Chillers

Split Systems Commercial

Heat Exchangers

Computer Room Emergency Cooling

Chill Water Storage Systems



Package Units Commercial

Cooling Towers

Pumps (all sizes)

Ice Storage Systems


Building Automation



DMI's state-of-the-art sheet metal design, fabrication, and installation facility is in-house, allowing us a greater ability to properly plan, schedule, and manage work on fast-track DMI projects:

DMI's on-site fabrication capabilities--copper, aluminum, black iron, galvanized steel, and stainless steel--is just another of our single-source services DMI clients enjoy, providing valuable time and cost saving efficiencies. Our state-of-the-art plasma cutter, complete coil line and spiral duct machine give us the ability to fabricate any duct work in a minimal amount of time.

  Sheetmetal Services  
• Ventilation Systems

• Dust Collection Systems

• High/Medium/Low Pressure Duct Systems


Exhaust Fans and Hoods

Kitchen Hood Grease Duct Systems



DMI offers complete boiler service:
• Annual Inspections
• Control repair, replacements, upgrades
• Start-up service
• Welded repairs according to NBIC
• Tube repairs and replacement
• New Boiler installations and replacement
• Pressure piping according to ASME
• Authorized distributor of Webster Burners