Service Group

HVAC Design, Installation & Mechanical Contracting in Michigan, Ohio, & Pennsylvania

Mechanical Contractor Michigan

Introducing De-Cal Mechanical Contractors Service Group

De-Cal Mechanical Contractors Service Group is part of a full-service mechanical contracting organization involved in the design, installation, and maintenance of plumbing, heating, ventilation, air conditioning, electrical and building automation systems. Our headquarters located in Warren serves Southern Lower Michigan with over 600-years of combined service experience in the industry. De-Cal Mechanical Contractors is committed to provide competitive top quality service, exceed our customer’s expectations and exhibit both honesty and integrity in a safe and challenging work environment. Through teamwork and innovation, we strive to continuously improve the way we conduct business setting a standard for our industry.

Our services require the support of union trade persons provided by local union organizations. By teaming up with our customers, projects are delivered through either plan & specifications or design / build construction methods from the early planning stage into a preventative maintenance relationship. Our staff includes registered professional engineers to facilitate the design of systems we service and install. De-Cal Mechanical Contractors also conducts employee back-ground checks as well as annual and random drug testing to maintain our high safety standards. Our customers include commercial, industrial and institutional facilities. Please keep De-Cal Mechanical Contractors in mind for an opportunity to service your future needs with over 30 trucks on the road

Services Performed:

  • Engineering:
  • Plumbing:
  • Mechanical & Pipefitting Services:
  • Sheet Metal:
  • Electrical:
  • Building Automation & Controls:
  • Safety First:
  • In-House Design-Build Capabilities
  • Trimble 3D Laser Scanning
  • Value Engineering
  • Performance Contracting
  • Professional Engineering Staff
  • BIM Systems and Process
  • Medical Gas Systems
  • Fixture Replacement
  • Drainage System Service
  • Backflow Device Certification
  • Drain Snaking Service
  • Sewer Camera Service
  • Sewer Jetting Service
  • Domestic Water Systems
  • Commercial & Industrial HVAC Service
  • 24 Hour Emergency Response
  • 24 Hour Alarm Monitoring
  • Building Automation / DDC Systems
  • Chiller Maintenance on:
    • Absorption Chillers
    • Centrifugal Chillers
    • Helical Rotary Chillers
    • General Reciprocating Chillers
  • Certified Welding
  • Chilled Water Systems
  • Comprehensive Facility Analysis
  • UA Label Fabrication
  • Computerized Task Maintenance
  • EPA Refrigerant Certification
  • Refrigerant Mgt & Documentation
  • CSD-1 Boiler Testing
  • Certified Air & Water Balance
  • Chemical Treatment
  • Preventive Maintenance Programs
  • Roof Top Units
  • Variable Refrigerant Systems
  • Hydronic Heating
  • Steam & Condensate
  • Process and Hydrolic
  • Boiler Installations
  • Boiler Rebuild & Repair
  • Repair and Maintenance
  • System Design & Analysis
  • Equipment Replacement
  • Tenant Space Improvements
  • Line Voltage Electrical Work
  • Electrical System Upgrades
  • Electrical System Maintenance
  • Low Voltage Wiring
  • Thermal Imaging and testing
  • System design and analysis
  • Preventive Maintenance and system upgrades
  • Service and troubleshooting
  • Tridium, Distech, Honeywell, JCI & Yaskawa Certified
  • Integration
  • Graphic upgrades and design
  • 3D Floor Plans
  • Large Campus and Supervisor(Front End) Support
  • OSHA / In-House Safety Staff

Nick Dawson

Michigan Service Manager
Office # - (586) 619-0281
Cell # - (810) 941-2182
Email –

Tim Morrison

Ohio Service Manager
Office # - (330) 272-0021
Cell # - (330) 717-7776
Email –

De-Cal Mechanical Contractors serves clients across Warren, Detroit, Michigan, Youngstown, Ohio, Pittsburgh, Pennsylvania and the surrounding areas.

Contact De-Cal Mechanical Contractors - Plumbing / HVAC Contractor in Michigan, Ohio, & Pennsylvania