Our goal has always been to find cost-effective solutions to our customer’s problems so they can concentrate on building and managing their businesses.

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All of our divisions work to provide the highest level of service and quality work to each of our clients. We have continued to grow by making our customers' needs our highest priority.

Office Locations

We have two offices in Oklahoma to better serve all of our  customers!

UNITED MECHANICAL CONSTRUCTION 
UNITED MECHANICAL SERVICE

117 NE 38th Terrace
Oklahoma City, OK  73105
(405) 528-1234
DONOHUE COMMERCIAL SERVICE

7676 E 46th Place
Tulsa, OK 74145-6308
(918)663-5353
Fax : (918)663-7655