Merge dedication to quality and a superior work force with the latest technology in Heating, Ventilating and Air Conditioning Systems and you’ve got a good picture of Union Service and Maintenance Company.

We’re proud to be the region’s leader in the design, installation and maintenance of HVAC systems for clients in a variety of industries.  USM- a name you can trust for your most challenging HVAC undertaking.

Union Service and Maintenance serves companies of all sizes in a variety of industries, including petro-chemical, manufacturing, offshore and retail.  While each client’s needs are different, all share one common belief: USM consistently delivers the highest quality product.

Every USM employee adheres to three goals: quality, safety and professionalism.  Our adherence to these goals and the fact that USM will not compromise these standards is the cornerstone of our success and our long-term client relationships.

Since its founding in 1951, USM has been dedicated to meeting the most rigorous quality and safety standards set forth by our clients, while delivering projects on time and within budget.