Meet Our Team

Steve graduated from Oklahoma State University in 1987 with a Bachelor of Science degree in Business Management.  He worked for CPI as Director of Operation / Vice President – Sale...

Lane graduated from Oklahoma State University of Technical Training with an Associate degree in HVAC and began working at Donohue Service Company in 1987 as a Service Technician. H...

Jon is our senior HVAC/R Maintenance Professional with over 30 years of experience. He is capable of designing preventative maintenance programs that are customized to meet individ...

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A graduate of Southwestern Oklahoma State University with a degree in finance, Brandon Mack is the Controller at Unite...

Joined Donohue Commercial Service in 2023, prior to that he served in maintenance sales for United Mechanical Service for 7 years. Chris has over 25 years experience in customer...

Melissa Tash has been a Senior Staff Accountant at United Mechanical Service for the past year. A graduate of Husson University in Bangor, Maine, she brought 20 years of experie...

Staff accountant Caroll Harris specialized in psychology, and she is a member of OPA, APA, and PsyChi. Caroll has worked at United Mechanical Service for 18 years, where she stays ...

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Ana Hernandez is the newest member of United Mechanical, serving as our Human Resources Manager. She obtained her Associate’s degree in Healthcare Administration from OSU-OKC an...