This timeline captures a few events that have shaped our history.
- 1948 Dilling Plumbing created by Richard Dilling Sr. in Logansport IN with 2 employees
- 1972 Richard (Dick) Dilling Jr returns home from Overseas Duty and begins building the company
- 1984 Electrical division is started and led by Fred Williams
- 1984 Dilling Mechanical is Incorporated with 10 employees and Licensed in Indiana
- 1985 Began working at Caterpillar Large Engine Facility in Lafayette IN
- 1985 Began working at Plymouth Tube – Mechanical and Electrical Services
- 1987 Eric Ott (Current CEO) and Dick Eldridge (Senior Mechanical Director) began their career with Dilling Group.
- 1990 Mark Parmeter (Current President) began his career with Dilling Group
- 1990’s Helped design and build 1st Manufacturing Facility for Steel Dynamics Facility in Butler IN
- 1993 Began working at Zimmer and established office in Warsaw IN
- 1996 joined Associated Builders and Contractors (ABC) Kentuckiana Northwest Council
- 1998 Celebrate 50 Years
- 1998 Began working at Biomet in Warsaw IN
- 2000 Man Hours = 208,833
- 2001 Built Steel Dynamics Columbia City IN
- 2006 Manhours = 361,327
- 2007 Completed Nestle Aseptic Plant in Anderson IN (Nestle Quick)
- 2007 Designed and built as Engineer of Record new $200 million soybean crushing operation in Claypool IN
- 2008 Opened an office in South Carolina to support work at BMW.
- 2008 Manhours = 651,807
- 2009 Changed name from Dilling Mechanical to Dilling Group Inc with new logo
- 2010 Created Building Temperature Solutions, an HVAC industrial service company, and established an office in Fort Wayne IN
- 2010 Opened office in Guthrie KY for Hemlock Semiconductor plant
- 2011 First Air Separation Unit built by Dilling Group Inc
- 2011 Dedicated New Training Center in Logansport
- 2011 Manhours = 719,091
- 2014 Began working at Wacker Polysilicon in Charleston TN
- 2016 Reached a high of 400 employees onsite at Wacker Polysilicon
- 2016 Manhours = 888,076
- 2017 Opened Southeast Regional Office in Charleston TN
- 2017 Opened Regional office in Lake Charles LA
- January 2018 acquired Generex LLC in Fort Wayne
- July 2018 Purchased by Comfort Systems USA
- July 2018 Dick Dilling retires, and Eric Ott becomes President of Dilling Group Inc.
- 2018 Manhours = 1,087,019 (First time achieved milestone of 1 million manhours in 1 year)
- 2019 Increased focus on prefabrication for Pipe Spools and skids
- 2019 Received Diamond Level STEP Award for Outstanding Safety Program from ABC IN/KY
- January 2019 Acquired Comfort Systems Indiana
- 2020 Received Diamond Level STEP Award for Outstanding Safety Program from ABC IN/KY
- 2021 Training Center Activities expanded to Indianapolis
- 2021 Manhours = 1,122,742 and EMR Rate .58
- 2021 Received Diamond Level STEP Award for Outstanding Safety Program from ABC IN/KY
- 2022 Consolidated subsidiaries of Comfort Systems Indiana, Generex LLC and Building Temperature Solutions under Dilling Group Name.
- 2022 New Branding effort with Logo and website presented
- 2022 Arizona is the 24th State for DGI Mechanical License
- 2022 Indianapolis Office is found consolidating HVAC Services with Industrial and Commercial Construction. New 65,000 sf Facility will allow for expanded training opportunities as well as more efficient fabrication space.
- 2022 In November Eric Ott is made CEO and Mark Parmeter becomes President of Dilling Group
- 2023 Dilling Group Celebrates 75 YEARS
