Chris Decker
Project Manager, Principal

  • More than 15 years construction experience
  • Graduated UF Rinker School of Building Construction Master’s Program
  • Graduated UF Warrington School of Business Administration Bachelor’s Program
  • 30 Hour OSHA Certified and First Aid/First Responder Certified
  • Licensed Certified General Contractor – License # CGC1522815

Notable Experience:

  • UF Health Shands LDR Renovations
  • UF Law School – Bruton Geer & Holland Law Renovations
  • The Continuum – UF Graduate Student Housing
  • GRU Eastside Operations Center (HVAC & Plumbing)
  • Vet Med Small Animal Hospital (HVAC, Plumbing, & Med Gas)
  • Asian Art Wing at UF Harn Museum (HVAC & Plumbing)
  • Trade PMR Corporate Headquarters



Michael Calsam
Superintendent, Principal

  • More than 15 years construction experience
  • OSHA Certified
  • LEED Certified AP BD+C
  • Graduate of Santa Fe College Construction Program – 2008

Notable Experience:

  • Completed over 600 commercial projects throughout career
  • UAA Basketball Facilities Upgrades
  • UF Parking Garage Repairs (2006-2010)
  • MSB 3rd Floor OBGYN Laboratory Remodel
  • Communicore Host Server Room Additions
  • UF Human Development Building Pediatric Oncology Renovations


Karlin Warkentin
Project Manager

  • 5 years construction experience
  • Graduated UF Department of Urban and Regional Planning – Master in Urban and Regional Planning 2016
  • Graduated UF M.E. Rinker, Sr. School of Construction Management – Master of Construction Management 2015
  • OSHA 30-hour Certified
  • HAZWOPER 40-hour Certified

Notable Experience:

  • UF Minor and Quick Response projects
  • UF Health/ Shands active hospital construction projects
  • Depot Park for Gainesville Community Redevelopment Agency
  • Bo Diddly Plaza for Gainesville Community Redevelopment Agency


Kevin Apathy

  • More than 41 years of construction industry experience

Notable Experience:

  • UF Flavet Field Bandshell
  • UF Criser Hall VP of Enrollment Suite
  • Moe’s and Chili’s Buildouts at UF Hub
  • Robinson Law at 720/Ayers Building (Innovation Square)
  • UF Call Center at 720/Ayers Building (Innovation Square)


Bob Bailey

  • More than 20 year experience in commercial and industrial construction experience.

Notable Experience:

  • Red Lobster World Headquarters Orlando
  • Highlife Farms Equestrian Show Barn Orlando
  • Gibson Guitar Entertainment Relations Studio Orlando
  • Essroc/Capitol Cement Major Plant Expansion Martinsburg, WV.
  • Dickerson Station Artificial Gypsum Processing Facility Frederick, MD.


Kris Terhorst

  • Over 10 years construction experience
  • Graduate of SFC Carpentry Aprenticeship Program

Notable Experience:

  • UF Jennings East & West Housing
  • UF Rawlings Plaza
  • Gatorland Toyota Dealership
  • Mercedes-Benz Dealership



David Williams

  • More than 30 years construction and carpentry experience



Ginger West
Office Administrator / Project Engineer

  • More than 16 years of construction industry experience
  • Over 13 years in account management 
  • 7 years of demolition and environmental remediation project experience




Eric Jones

  • More than 42 years constuction industry experience
  • Supervised ground-up construction in Florida, Georgia and the Bahamas

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J. E. Decker Construction Group, LLC
P.O. Box 358973
Gainesville, FL 32635
Office: 352.448.1428
Fax: 888.456.2695