About Us

ATR Mission Statement

To be a leader in the installation and service of quality heating, air conditioning, refrigeration, plumbing, and building automation systems at a fair price to the customer. Supported by a knowledgeable courteous staff and providing superior service and continued customer growth.

Meet the Team


Steven Biberstine
- Sheetmetal Fabricator



- Systems Administration


Jonathon Casemier
- Building & Grounds


Dale Clune
- Estimator, HVAC


Steve Conley
- Controller


Veronica Conley
- Accounting Assistant



Rick Dirmeyer
- Service Technician



David Eickholt
- Installer



Bob Elwer
- Inventory/Parts



Ryan Fischer
- Installer



Nathan Garber
- Installer



Eric Geise
- Estimator - Refrigeration



Paul Grothause
- Mechanic




Laura Hayford
- Dispatcher



Calvin Hefner
- Mechanic



Emilie Hoffman
- Accounts Receivable



Ruth Honigford
- Human Resources



Daniel Krietemeyer
- Service Operations




Carl Landwehr
- Installer



Kim LaRue
- Accounts Payable, Receptionist




Deana Lauf
- Service Coordinator, Purchasing




Jeffrey Maag
- Installer




Dennis Miller
- Installer




Ryan Moenter
- Installer



Jason Ostendorf
- Service Technician



Keith Pohlman
- President




Randall Ricker
- Service Technician



Jeffrey Shirk
- Pipe Welder




Timothy Staup
- Service Technician



Dana Steinbrenner
- Parts/Inventory



Trevor Utrup
- Installer




Joe Wallenhorst
- Installation Manager




Thomas Wallenhorst
- Installation Manager




Ryan Wannemacher
- Service Technician




Jacob Wathen
- Welder




Aaron Wehri
- Installer




Troy Wenzlick
- Service Manager